" Finally finished assembling my red/black Ear+ Purist HD
kit. This was the first kit I have ever done. I have never
even soldered before buying your kit. Well, it worked correctly
from the first time I turned it on! I cannot believe how good it
sounds. This will become my main headphone amp, displacing another
"boutique" solid state amp I already have. Your instructions are
very thorough and easily followed, even by a beginner like me. I'm
glad I opted to do the assembly myself, as it was much fun and I
now have the satisfaction of knowing that I put such a fine amp
together. Thanks for a great product at a great price".
"I'm pleased to report that the transformer you sent with the pre-wired hexfred diodes arrived safely yesterday. Thank you very much for getting this organised and posted out to me so quickly! As I had the afternoon off from work today, I spent most of it de-soldering the connections of the old transformer and re-soldered this new one into place. I have to say that the mounting bracket that came with this latest transformer is much improved over the one that I had on mine. But in saying that, my old one is 3 yrs old now. I'm very pleased to say that my Ear + purist is back in action and back sounding like it should - hum free! A BIG thank you to you once again for your wealth of knowledge and advice in helping me determine the problem and getting it resolved so quickly"!
"Just a quick note to let you know how happy I am with the HD100(#4) head amp. It's had a good chance to burn in and I'm very pleased with my purchase. It mates wonderfully well with the Grado RS1. Took a couple of weeks to adjust after listening to ss amps for so many years but when I tried my Perreaux amp a couple of days back there is no way I could return to that. Currently running an RCA Command blackplate 5751 and I'm so satisfied with that combo that most of the other 19 5751 tubes I purchased for some serious evaluation have yet to be opened (I did get a bit carried away there but on the plus side I have enough tubes to probably last 20 years or more :)). It only took my friend about 2 minutes listening to my amp to decide he wanted one as well. It's a nice bonus that the amp looks so good as well. Thanks for a wonderful product".
"I want to thank you for the Ear Purist HD100 you built for me. Iím really enjoying listening to music with my Grado RS-1 headphones using a PC computer as the transport (iTunes playing Apple lossless music files) and a USB Apogee Mini-DAC as the source. The pairing of the Ear Purist HD and the Grado headphones is very good. I can listen to music several hours and I donít get the ear fatigue that I get with the Grado RA-1 solid state amplifier. Iím still doing tube rolling, but currently my favorite 5751 tube is the GE triple mica and black plates".
"I recently bought and built the Ear+ kit and I want to tell you how much I enjoy it. With the Sennheiser HD650 headphones the sound is fantastic. I'm just gobsmacked every time I listen. My old CD's are a new listening experience".
"I have just received the amp [Ear+ Purist HD], and it already far exceeds my expectations! The build quality is superb, the packaging secure, and so far it sounds really great. I am sure that once all the components settle in, it will sound even better. Thank you very much for the great work, it was well worth the price, and most probably even more".
"Just a note to thank you for what has been both a great buying AND a great audio experience. It was intensely satisfying to build this amp [Ear+ Purist] from scratch, and finally switch on and ENJOY... Midrange is spectacularly intimate and detailed - I have found myself re-listening to all my old music, and finding new pleasure in the experience. Thank you".
"I received the unit (Ear+ Purist HD) yesterday and, after
several hours of burning-in with Widor's organ symphony no. 5,
I've already spent some very rewarding hours in its company!!! Ah,
that soundstage - it sort of extends in an arch of 180 dgrees
behind my neck, performers almost life-like in size (and my head
suddenly seeming VERY large, nothing wrong with that ;-) ). Sound
is tidy, fluid, coherent, balanced, no nasties except what's
recorded o.c., just
right (does this sound familiar to you?). Swapping the 5751 for a GT 12AX7 Mullard remake makes the soundstage even more expansive, with more bite and attack than the 5751 - great for piano, guitar, plucked strings and percussion, maybe a little less tidy, just different, but then the 5751 sounds lovely, too, it's so clean! The difference in gain has been much less audible than I had expected. My cans are 18 years old Beyerdynamic DT990's (open version), interconnects are a pair of 2ft Nordost Red Dawn. I'm a very happy listener".
"I had a chance to have a good listen to my stereo today...wow! Prior to the Octal 6a I was running my DAC directly into the amplifier - a very clear, detailed sound but a little hard on the ears. The Octal 6a has cleared up the glare and added its own magic. I'm very, very happy. I've tried three pre-amplifiers in the past two years - Conrad Johnson PV2a, ARC LS7, Modified PAS - the Octal 6a is superior in every way"!
"Kudos on your wonderful Ear+ Purist kit. VERY clear instructions and very possible even for a novice like me. I found your suggestion of tinning the leads very helpful in making good connections. I can't remember the last time I've had this much fun with a project. The kit came 3 days ago, and I've been working on it in the basement workshop the last 3 evenings. Last night I started at about 9:30 and after a while was feeling kind of sleepy. I thought, "It's gotta be at least midnight" -- when I went upstairs, the clock said 4:30am... whoa... talk about losing track of time. I'm glad today was Saturday and no work. Anyway, it's done (couple of hours ago). Plugged it in... no noise, no smoke, no blown circuit breaker. The voltages were right on. Plugged in the headphones and WOW... I'm listening to Winston Marsalis right now and it's really an amazing experience. I'm already planning to put my Grado solid state amp up for sale. I was thinking about tube rolling, but this thing sounds so great with the tubes you supplied, I think I'll just enjoy it for a while. Thanks again, keep up the great work, and I hope to build more of your kits in the future".
"The amp (Ear++) now has over two weeks of heavy use, and it just gets better and better. Nothing has blown up, and it plays damned sweet music. It really improves the bass in all my headphones, much better than my (now sold) Creek OBH-11. Music just sounds so....musical....:-) Again, thanks for an excellent kit. It's been a great entry to the tube-world for me".
"Magic to my ears, no hum whatsoever, quiet as a mouse and the
music is coming through as it should, most impressive! Many thanks
for all your help and assistance through out this process of
trying to identify the root cause [of the kit wiring problem]!
Suffice to say this little amp is certianly pride of place and
kicks other headphone amps that I've demo'd like the Musical
Fidelity Cans V2 into the weeds without breaking a sweat ! Great
product and I would recommend this amp to anyone after a GREAT
and the power to drive any headphone"!
"Fantastic assembly manual. Really great for a novice".
"I wanted to let the amp [Ear+ Purist HD] run, and try both Grado RS-1 & Senn. HD-600 before getting back to you. The amp is the best I have ever heard!!!!!!!!!!!!!!!!!!!!!!!"
"I received the package [Ear+ Purist kit] on Thursday, started construction Friday evening and had first power-on at about 11:30 Saturday night. I very much enjoyed the assembly process, as it brought back fond memories of hands-on electronic assembly work I did in the 80's and early 90's. After a quick check of the +300V, and then the +12V heater, it was very satisfying to see the tubes warming up. No problems at all. I then spent the next few hours, and most of Sunday enjoying the sound. The kit and instruction were very well put together, and was a pleasure to work on".
"The Ear+ Purist kit I purchased from you a couple of weeks back is complete and I was amazed to discover the music it made through my Grado 225. I was disappointed when I first purchased the headphones and used them through the headphone jack of my Sony receiver. They were okay, but nowhere near the quality to justify the $300. But with the Ear+, I finally discovered what my Grado's capable of. Now, that $300 for the headphone seems like a bargain. All my CDs that I thought I knew so well now sound like new versions of the songs; bigger, fuller, richer versions. And I can't believe the level of bass coming out of them. And all this with less than 10 hours of use. The assembly process took three evenings and was pretty straight forward. The unit worked from the first flick of the switch".
"Just wanted to let everyone know that I just assembled an Ear + Purist headphone amp and I could not be happier. The unit is absolutely quiet, and drives my HD-580's to perfection. I am using a Sony SCD-CE775 as a source. This piece has an unreal neutralness to it's sound. Hard to believe tubes are in the unit. Lloyd was also the best and most responsive person in the audio industry in my over twenty five years of enjoying this hobby! When it came to any questions or situations that arose during assembly, he responded to my e-mails almost instantly".
"It sounds great--just the "tube sound" I wanted. Worked on "turn-on" with no smoke! :) It brought back a lot of memories of breathing "solder smoke"! :) The kit and instructions are "first rate". My only suggestion on the instructions would be to have the pictorials separate (I separated mine and re-stapled) like Heath used to do. You might print a "ruler" on the pictorials (like Heath did) for those without rulers)".
"Here is an e-mail to notify you of my receipt of the headphone
unit. It arrived yesterday and was waiting for me when I got home
from work. I would like to thank you for the time and energy you
put into the unit. I am very pleased with it. The aesthetics,
sonics, and craftsmanship are very evident with this unit. I did a
lot of searching on tube audio sites and had decided on a number
of different headphone units when I came upon your site and saw
the Commemorative Ear+ 25. I must say that your unit's design and
layout was eye catching, to say the least, plus the positive
reviews regarding your products, it was a no-brainer! I was lucky
enough to have had the opportunity to obtain such a top notch
unit. Spent some time with it last night after letting it warm up
for an hour. I listened to various CDs (primarily blues, rock,
baroque/classical for about 4 hours) through Sony 7509 cans.
Sonically, the detail and soundstage improve after each CD. I look
forward to spending more time with it and my son is salivating
over his chances to listen to it and, one day, claiming it as his
"I got the amp today. Hooked her up and enjoyed the wonderful sound. WOW! What a difference from a normal headphone jack. I was using my Sound Blaster Extigy sound card headphones jack. It was very quiet but not like the EAR+. I can hear hiss on the soundcard ..and nothing on the EAR+! The channel separation is great. Great soundstage. Nice separation between the instruments. Voices are well presented. ( this thing is growing on me!) No distortion. My Grado SR225's can take anything this amp can give it. Bravo! My compliments to the Chef!"
"I completed the Ear+ yesterday. Great project. Very easy to follow directions. My daughter actually did most of the work (except where the spaces were tight). I used Auricaps in the bypass. Also I used carbon resistors in the signal wiring. Turn on went through without a hitch. No smoke or cherry red tubes and the DC voltages were right on target".
"I wanted to write to you to tell you how much I enjoy the Ear+ that I bought from you in August. I brought it back to Saudi Arabia with me and now do most of my solitary music listening on it (with a pair of Grado RS-1s and a quad 77 player -- they seem to be a very good combination). It definintely needs a break-in period. Out of box, it sounded as good as but not better than the Creek I had been using. But as I continued to listen, wonderful things began to happen that quite distinguished it. I began to hear a lot more detailówithout any special concentrationóand inner melodies and ornamentation in symphonic performances were there for the first time. And I am impressed with the sense of space that I had not previously heard. (I have on occasion got up from my chair without taking off the earphones because I forgot that the sound wasn't coming from 'out there'). Space, detail and immediacyóI think the next improvement should be an upsampling source or dac!"
"The Ear+ is assembled--great parts and instructions. I am enjoying every minute of this project".
"Thank you for designing such a fine product and in kit form ! The sound is spectacular--it blew me away; even my wife was excited. We actually fought for the earphones. Now I have to listen to all my CDs all over again. I have a decent stereo system but with the Ear+ it sounds like a $20,000 setup".
"I find the Ear+ immensely musical and unbelievably quiet for a tube infested beast. I plan to keep mine for a long time".
"Love the preamp, great! Love the headphone amp, superb! The bass
on my Sony MDR3000s is UNBELIEVABLE! The Grados sound good but the
Sonys better. The pre amp section drives a small EL34 based set
driving the old
Radio Shack LX5 speakers with Lineum tweeters and Kevlar woofer, In the tiny room they are in, it sounds fantastic".
"Just finished wiring up my Ear+. Everything worked fine from the initial turn on. Very good instructions for putting it together".
"I finished the assembly of my Ear+ and have been listening for a week. This email is to thank you for the experience and for the results. First, as for the experience, I was torn between slowing down the process because construction was such a joy and speeding up because I could not wait to listen to my first DIY project. The instructions were extremely easy to follow and I enjoyed following the schematic as I worked. Notice I didn't have to call or write once. I just found building the amp very comforting - me, my soldering iron, and the kit (my wife thinks I'm nuts : ) ). As far as the sound, I am extremely pleased with the fidelity. It completely blows away the headphone circuit in my Micromega CD player. The tonality (particularly the highs and mids) and dynamics are outstanding and I am hearing transparency I've never heard with my Grado SR-80's. My only possible problem with the tone is the lows. I often think the lows are a little sluggish and not as defined as it should. It is still not a complaint and it very well might be the Grado's. I've read a lot of complaints on the Grado bass . . . Lastly, you should have seen my face when I first turned the amp on and listened (I'm still exited). I think you would have appreciated it".
"Hi Al, Just wanted to drop a quick note. Your amp design is a winner. I haven't tried the LCD-X yet, but the midrange on the Fostex TH-900 has come alive and the slightly hot treble is much more natural. The tubes probably have 20 or less hours on them. I have a $2300 hybrid amp and I would rather listen to the OD300 any day of the week. It sorts out musical and spatial details that the other amp just doesn't get. The amp drives the Audeze phones with ease. The midrange is delicate and more detailed than the Fostex. I have been using the LoZ output, but will try the HiZ when I have time. The LCD-X don't need a lot of power like the LCD3, but your amp doesn't get muddied up like the Woo WA6SE. I have a pair of Hifiman HE-5 I will try with the amp. They are 50ohm but require much more voltage to drive. I prefer the Fostex over the Hifiman, but I'm sure HE-560 owners would be interested to know".
"Itís [Line 2A SE] been on since about 17:00 this afternoon. I
would like to congratulate you, you have done a very nice job on
this preamp. Itís very smooth and sweet, nicely three dimensional
but most of all itís effortless to listen to. Thanks again".
"The Line 2A and PS 2 arrived on Saturday. I couldn't be more satisfied with my purchase. The sound is fantastic. Cosmetically, its simple and elegant looking. I'm relatively new to the vacuum tube audio thing. I can't understand why my new tube based stereo which has cost me about $1200.00 total (EL34 based power amp & MAD Line 2A/PS 2) sounds exponentially better than my $1500.00 350 wpc Adcom power amp and $600.00 Adcom preamp. The Adcom system sounds grainy, and for lack of a better word, "cheap" in comparison to the tube setup. Thanks for making a great product".
"This is just to tell you that I am very happy with the Line 2A SE, which arrived last Friday, allowing me to listen to it during a long and rainy week-end. The new design with the larger box and the front cover is for sure an improvement and a step up compared to my old Ultra, all though the design now is a bit more "conventional" and closer to the look of other makes. For the price, it is anyway even higher value than before. More important, the sound improvement was bigger than expected. Overall impression is that everything sounds more clear, with better contrast and sharper edges than before. Not sharp in the sense too sharp, but some background blurr is gone, allowing voices and instruments to stand out more clear and distinct. I hear details I have not heard before, and on complex music, it is easier to reconise all the different instruments, also those only filling in in the background. Female voices are more natural and on live recordings, the artist has much more life than before, and the sound stage is also wider than befroe. Not much, but noticable.. The sound is also more dynamic, the bass notes seem to start and stop faster than before, if you understand what I mean. All in all, I'm a bit amazed that the improvements could be as big as they are. I was happy with the sound I had with the old Ultra, and I actually have some problems understanding that the better capacitors can make such a big difference. So it has been a learning experience as well, showing that fancy and expensive components are not only "hype", but that they actually do make a difference. Thanks for a very nice product".
"Just thought I'd send you my thoughts on the Line 2m preamp, now
that I've had several days to listen to it. It sounds phenomenal!
The bass is very deep and solid; there's never the feeling that
the power supply is straining to deliver the lows. The highs are
extended and sweet; not at all harsh. Also, the lack of noise is
really impressive; apart from my usual speaker setup, I've been
listening with Grado headphones through the headphone jack of a
NAD C350 (the headphone jack is connected to the power amplifier
section using a voltage divider network), and this setup is very
prone to noise if it exists; but wonderfully there's no audible
noise from the Line 2m. Just as a comparison, the Line 2m is head
and shoulders above the Melos HA-1 I had before (the Melos is not
a slouch, either -- it was Stereophile "Component of the year" for
1992), and the Line 2m is also much more dynamic than the passive
attenuator I had been using".
"Just thought I would drop you a line and give you an update on the Line 5 SE you put together for me. So far, the unit has been fabulous. Both music and movie soundtrack reproduction have gained an organic feeling to them that just was not present before. Sound is very clean, microdynamics (especially on movies) has increased to the point were subtle noises become much more recognizable. The unit is a joy to listen to".
"I brought your Ultra 4[A SE with Black Gate filter caps] to our first norcal event. The response was slack jaws all around. 'How cute', '800$, used?' 'Best bass I ever heard', 'Best preamp I ever heard' '800$ new?' I walked out of there on a cloud. The little Ultra 4 wowed 'em with centerfill, rich 3d soundstage, retro cool looking, and 800$! This preamp cost less than the wires the guy had in his outboard oxo's. I love having the giant killer preamp, stay tuned for pictures and more reviews from the meet".
"I've been listening to my Ultra 4A SE for a couple of days now and I am very pleased. Gerry Mulligan and Paul Desmond (Verve MGV-8246) are playing now on the turntable and the sound is terrific: Gerry's baritone is nice and throaty and Paul's alto is breezy and airy. The build quality of the Ultra is superb and now that it's in my living room, I like the red and natural oak combination even more. I just wanted to say thanks to you for a wonderful product and a highly professional transaction".
"All is well and sounding great after several days of extensive use. I'm really enjoying the sound. It is a really synergistic fit with my system. I am using TEAC digital amps bi-amping Strathearn ribbons and 10 in woofers crossed at 200 Hz. The gain and low noise of the preamp makes the combo work great. Thanks for you great value product"!
"The Ultra 4A sure made my holiday a happy one. It is awesome. Beats the hell out of the MFA Magus-B that I had made by Bruce Moore. I used British Racing cones under the pre-amp and what a difference in sound-stage. Best pre-amp so far that I have owned".
"The Cary preamp, while being absolutely beautiful and sounding great, could not better my modified Mapletree Ultra 4A in fact we all agreed Mapletree was the best of the weekend by a small margin that we couldn't quite nail down exactly what it was ... tighter dynamics maybe ? The Lam 6SN7 sounded very much like the Cary with the Cary being slightly bloated on the bottom. Keep in mind everyone were splitting hairs here".
"The 12SX7GT's just arrived and they are plugged in. The
difference is not subtle. The preamp now has bass and a lot more
depth of field. I am listening to Shawn Colvin, Cover Girl, and it
has more detail and character
than my Scott LK-72. I figured I was going to have to get a tube amp very quickly, but now, maybe I can take my time listen to my Acurus SS amp and find the right deal at the right price. WOW! The 12SN7GT's by comparison are the weak sister with what can only be described in my present combination as a hi-fi, SS sound that is slightly softened. They do more for your preamp than the GE triple mica 5751's did for my Scott and they were definitely worth the investment. I was beginning to wonder how the 4A Ultra could compare with a Cary with the standard tubes, but with the 12SX7GT's, I can see where the praise comes from and it is well earned. You have done a wonderful job, thanks, Lloyd".
"A quick, first impression of the Ultra 4m: Musical. Dynamic.
Quiet. Good looking. As I explained, I can't make general
statements since I have only my system in which to audition. I can
tell you that my Audio Research SP-3A -1 never sounded so good.
The Ultra 4m is more dynamic, more transparent, more involving. A
great improvement. So far it exceeds my expectations. I'll give
you a fuller report in a couple of weeks. Thanks again. And thanks
for installing the Blue Velvet pot after it was ready to ship. I
know that caused you extra labor and I appreciate the excellent
"My new Ultra is sounding great with my various amps and I've decided to actually buy another ZEN SET amp since both the Octal and the Ultra compliment it nicely. The phono stage works especially well with the Shure V15 cartridge and thus is also a match".
"Thanks for the opportunity to audition your Ultra 4m. I am definitely keeping it. It makes many positive change in my system, bringing it to life with dynamics and clarity without "brightening" the sound. Most impressive is the quality of sound in the lower octaves giving texture and a solid foundation to the music. The mid and high octaves have reveal more information which is well organized into spatial and harmonic structures. My previously polite system has found a clear and authoritative voice. My equipment is not especially high end, but over the years I have tried to select musical and cost effective components:
Vinyl: VPI HW-19
Mk 3, Rega B300, Dynavector 10X4
CD: Parasound CDP-1000 (used as transport), Cambridge DACMagic Mk II
Amplifiers: Bryston 2B, Dynaco Stereo 70 (Triode Electronics mod), QUAD II monoblocks
Speakers: QUAD 57, Rogers LS3/5A
Also: 24db electronic crossover and 10" isobaric subs for biamping
In the past I have used Dyna PAS mods, both Van Alstine and Curcio, but the Ultra 4m is definitely superior".
"The Ultra 4M allows that elusive window into the music that lets
me relax and enjoy the performance. Detail is excellent, but not
overly analytical. The soundstage, on those few recordings that
have veridical spatial qualities, is wide and deep. Timbre of
instrumnets is true to life. In short, nothing the Ultra 4M does
offends my ears".
"Well, I finally set 'em up last night and this morning [Stealth
5s and Octal 6]. They sound really nice --
and I'm very pleased. I'm using them in my small home office, with
an NAD 541i CD player and Axiom 3ti speakers, an all-Canadian
stereo. Unfortunately, speaker placement is still temporary, due
to space constraints, but judicious use of the balance control
results in truly enjoyable sound. And they look great".
"I have finally put
the whole system together and WOW I am over the moon, the
system is phenomenal, I could not have it any better.
The Thingy [high
level crossover] is well worth the investment into a
system, I did not relies how much bass you don't hear, and
the Ambient channels are amazing, I hooked up all my back
channels 4 speakers in total into this output, and it
just makes the music come from every where, all in
perspective with the front channels, and if the music
does not suit it, you can turn it off, simple. I have not
found much that does not benefit from this channel.
Also the detail that comes through with a low
volume settings is amazing, on CD the volume
control is set at 8.00 o'clock and you here every little
instrument and note + some . No more wife telling me to
turn the system down she was astounded at what was coming
through at the small volume setting. As you can tell I am
a pretty happy chappy and in the 35+ years of HIFI buying
and listening, and in that time I have
owned some pretty expensive gear from Plinith, Niam,
Linn, etc etc. I am sure I have a system that I
will be happy with for the next 35 years. Many thanks
Dr Lloyd it sure shows with good simple design,
you cannot go wrong.
"The Octal 6A SE arrived today. It's installed and it is playing as I type. Beautiful work you do. I especially like that toggle switch [option]. P.S. Man, what a nice looking preamp"!
"I'm finally ready with my Octal 6A Triplex, and I am VERY happy
with it. It plays like nothing I ever heard. I have tested many
preamplifiers, but nothing can compete with the Octal. As you can
see from the pictures I have
designed my own case in wood, with copper plates inside as a shield. I have also built in an ALPS motorized potentiometer with an external power source. Since the tubes are inexpensive I have bought tubes from many different
producers. The combination I'm running now is: Mullard 6R7GT, GE 12J5GT and RCA 12SN7GT tubes".
" . . . first of all, I wanted to thank you for the Octal 6A -- it is, without a doubt, the most remarkable bit of audio equipment I have ever owned. I look forward to adding a MAD headphone amp to the setup..."
"I just upgraded the caps in my Octal 6A. Spend the $50! Its very worthwhile. Soundstage is much wider, more detailed sound, cleaner. A major step up. I would HIGHLY recommend this upgrade".
"I have received the unit [Octal 6A SE] and early impressions are most favorable. I've used it to replace the [Quad] preamp in my old Quad set up and it is much more transparent. I've yet to decide which active circuit I prefer but its early days yet. It's better looking than I expected and has earned praise for both aesthetics and performance from several people at a recent party".
"You have designed one phenomenal sounding pre amp for the money, primarily using the cathode follower topology. With minimal hours I hear a more open sound plus a definite improvement in the bottom end and lower midrange over my Assemblage preamp. I am always happy to hear something new on a recording which I am very familiar with. Incidentally I use a Radio Shack digital sound meter to set similar levels when comparing equipment. I was always somewhat cynical of owner reviews that claimed that a significantly cheaper piece of equipment kicked butt over a higher value piece, well not any more. I wonder what your phonostage would do to my 9 month old Ear 834p, actually due to the price difference I don't want to know. If only I had found your site last fall".
"Sound is really great, and powerful! Better than my Denon AVR 3200. Your design is simply a great work. It has been a pleasure to build it myself".
"I very much enjoyed building this amp. Although I happen to be an electronics technician (though I'm no engineer and haven't had any previous experience with tubes outside of school), the instuctions were so well written, somebody who has no knowledge of electonics could easily build the kit with no problems. And the sound is great. Smooth, warm music, vastly improving the sound of digital".
"My wife observes that [the Octal 6] sounds better than the preamp which it will replace (McIntosh C-32, a solid state unit), in ways which she cannot define. I think the difference is in clarity, transparency. I am glad to have all three circuits on call for different music".
"Finished your "Octal 6 " and I was impressed....The unit competes with Audio Electronics AE1 that I built a long time ago..."
"I received the kit today. Thanks! It looks beautiful, with great attention to detail".
"Success! First time, no problems. Voltages checked, tubes lit, sound emerged, all controls function!!! Initial sound is quite promising. I expect it will take a few hours to "run in".
"The preamp's looks are stunning. You have got everything absolutely right".
"The sound of your [Octal 6] preamp is extremely satisfying. The soundstage is rich and deep, as is tone".
"The manual is very impressive, worthy of H. H. Scott and then some".
"[The Octal 6 is] an awesome kit and the documentation is top notch! Thanks for helping to bring back tube audio!"
"Finished the [Octal 6] preamp. Great kit! I'm listening to it right now. It's pretty cool to be able to do comparisons on the fly."
"A complete steal at $375 for the kit." (audioXpress review of the Octal 6). [Even better at $345].
"Right out of the gate [the Octal 6] sounds better than the Counterpoint SA5.1 ($1,500 new) it replaces. Congratulations on a great product".
"The Octal 6 arrived and is running fine - I love it. Very transparent, detailed, warm and a really good soundstage. It's everything I hoped for - and it's not even broken in yet"!
"I purchased and built an Octal 6 kit about a year and a half ago. I enjoyed the project very much, and enjoy listening to my stereo with your pre-amp immensely. I usually use the SRPP topology"
"Now that I've used the Octal 6 you built for me past the initial burn-in period I wanted you to know that I am very happy with it's performance and looks. It has become the center piece to my living room audio system".