diyAudio Store

All arrived and boxed nicely I order here all the time

Great PCB very well made top quality.With the guide and forum produces a top notch power supply. It is powering the MX2 at the moment .

Top quality PCB's and very nice looking too. Very easy to stuff and many options if you happen to choose a part similar but different footprint.

Glad they are stocked as I have no means to verify matched sets. Shipped fast and no issue.
Just wish they didn't sell out so often. I am anxious to build other amps.

Great product,precisely made and looks very professional when completed.

I have not started to build this amp yet, but I found it very convenient to have all the parts included. (Except for the input transistors, but I already have several matched sets of those that I bought a few years back.) So I can't comment on the amp, but I can comment on service from the DIY Audio Store: great job, folks! In this order as well as several previous orders.

For an experienced amp builder, this was the easiest build by far.

Good finish and fit. Easy to assemble.

Does the job well.

As described, all good and easy to assemble. I set it to 9.5V. Would like to try to install better caps, silver wire and better volume pot.

I will be soon able to compare it to my Pass HPA-1 paired with FW SIT-3

I thought this kit was easy to build, looks nice, and sounds great. It sounds as good as or better than some very expensive preamps, as long as I am not feeding amps with extremely low input impedance.

My only negative comment is that flipping the input toggle switch will initiate about 5 seconds of microphonics in the nutube. It would be nice if some manner of taming the microphonics were included in the kit.

My lasting impression is that this is the best bang for the buck I've ever encountered in an audio component.

Used in my DIY F6 , sounds great. Thanks

Had to swap to a high zener voltage in my case. Otherwise the kit arrived quickly and worked perfectly in my DIY F6.

The kit consists of two identical circuit boards along with resistors, capacitors, and transistors. Assembly is quick and straight forward, with no surprises. Parts quality is high, with parts from Panasonic, Elna and even Cornell Dubilier. The assembled amplifier, along with the chassis kit, has a deeper, more lively sound field than the Bryston amp it replaced. It has no trouble driving my Klipsch Heresy speakers to very loud levels. I am very pleased, and glad I bought the ACA kit.

The Amp Camp chassis/case consists of heavy gauge aluminum plates that come pre-drilled and tapped for the amp kit and its various sockets and switches. When assembled, you have a solid, high-end product. Well worth the price.

Everything except heat paste was in the box. Excellent instructions, but two things to watch - this project is not like the amp camp amp and starving student II, which were made for anyone and everyone to build safely - you can electrocute yourself with this project. To death. Perhaps before turning it on cover the 120/240 volt ac live track parts with beads of hot glue? Someone else will have better advice. Second thing, the instructions are excellent, but I still needed to remove some resistors I had put on the board after successfully leaving them off earlier in the build - look at and compare the assembled board picture when you've finished yours, before turning it on. As a preamp for the amp camp amps it is truly special. I thought the ACAs were having serious bass run-on, but there was just more, a lot more, happening in the bass department, all of it clearly defined, and the concert bass drum reverberations were supposed to happen. Happy building.

B1R2 pre with separate 28mF CRCRCCC supply built and sounding swell in my system. F5T with a twist now underway. Thanks for supplying these vital components and matching so close.

This is now ready to be tested in conjunction with an older Danish PreAmp I built from the 1980s when the power part was built into the cabinets themselves. Now the Super Regulator (PSU) together with the transformer will be mounted in an external enclosure. And then I have high expectations for this Super Regulator in this setting.

Having a supplier supplying these sought after JFETs is a good thing for us DIYers, they have even assembled them for one pair of winter dark building projects with PCBs also coming from the DIY Audio Store. Thank you for the unique opportunity to get these parts and components.

The kit only took me two two-hour sessions to complete. The unit worked first time I powered it up with no issues. I paired it with a Schiit Audio Valhalla preamp and it sounds fantastic through my Yamaha NS-10M speakers. Totally satisfied and pleased with the result.

The kit was the easiest yet to build . Very happy with the results. May mod in future, but good for now!

The ps is well made and I find it easy to live with. The future may see me putting a ps in chassis but I will require some performance advantages.

I dislike selecting, finding, and ordering parts from multiple sources. Many potential projects just don't get started. Thanks for putting this together. Everything was there and worked.

I experienced NO problems with assembly, fit, or funtion. This is a high quality professional grade product.

The amp itself is brilliant design!
PCBs are of excellent quality and very easy to work with.
Though a couple of improvements can be made: bigger diameter of resistor leg holes allow to install high quality resistors like 0.5W Shinkoh or Takman. Also it's better to bypass electrolytic caps with film and mica caps, so place for one (or better - two) bypass caps for each electrolytic should be great addition.

Excellent beginner instructions. No problems with parts or build. I got it to use as a pre-amp with the amp camp amp. Although it sounds good, and gives more volume possibilities, the amp camp amps sounded better (to me) without it. I have since built the Whammy headphone amp. It seems more suited to the ACA, with no difference of sound style or quality that I can hear. So, this one, the starving student ll - excellent little project. I want to add a warning here - the ACA and Starving student are both designed for beginner construction, so no electrocution can occur. The Whammy headphone amp does assume a higher level of electronics awareness, and you are completely responsible for your own safety. Thanks as always DIYaudio, you bring happiness into my life.

The title says it all, it is very good and will save you a lot of time!
Now with my little experience I would prefer stainless steel and higher standoffs for mounting the PCB, it would be less fragile and would give the possibility to use ceramic pads under the mosfet.
The brass is too fragile and I brook one inside the panel, that was impossible to recover the threaded part wich was stuck inside.

Thanks to all the good folks on DIY forum for providing easy to follow guide and suggestions/tips. I built my Whammy in 4 days (2-3 hours per day). The most difficult part was the chassis as it's my first real diy project and I didn't know how to properly use power tools :) Quality of the board is great and the shipping took only one week to Ontario Canada. I'll definitely consider more projects from the DIY audio store! Thanks for making diy accessible to newbies!

The boards are of excellent quality. I must also commend the speed of delivery by DHL to France. I am going to enjoy building this amp.

Tuve la suerte de que me la contruyo mi amigo Javier que es un reputado tecnico y tengo que decir que, ojo, sustituyendo la fuente de alimentacion conmutada por una fuente de alimentación lineal, un cable de altavoz de 16mm² de OFC y con unos altavoces muy sensibles y buenos graves como Klipsch R-24F, el sonido tiene poco o nada que envidiarle a Meridian 205 Mono con Dynaudio Audience 62. Y eso es muchisimo decir para cualquiera que conozca Dynaudio amplificado por Meridian. Ditto.

Build completed without issues thanks to the excellent build guide by 6L6 and extended notes and tips from Pete Millett. The kit arrived intact and in excellent shape. Thank you to Jason for his patience and guidance whenever called upon for assistance. The build was not difficult when approached with a reasonable amount of patience. Finished amp looks amazing thanks to the precision and sheer quality of the supplied enclosure. A golden nugget of a HP amp with pre-amp capability thrown in. Listening experience has been amazing. Immensely enjoyable and rewarding build. Highly recommended.

I ordered the Elekit TU-8200DX after researching it extensively on the DiyAudio Forum. The kit arrived as promised. Emailed questions were answered promptly. The amplifier is very nice. I substituted a few components as suggested on the forum with outstanding results however it sounds great as shipped. The TU-8200 driving MarkAudio 12P/Super Pensil speakers with a Raspberry PI4 and HifiBerry DAC+ Pro and streaming Qobus with great results. There is more than enough power and the bass is impressive.

These electrical insulators/heat conductors are excellent ant easy to work with. NO MORE PASTE! Nice.

I really enjoyed building this amp. It took me a little longer than I thought but I was being very thorough and carefull. It was prity straight forward as it was my 1st attempt at such a project. The walk through build guide was invaluable. The case was nicely built and the whole thing looks great and sounds excellent. Iam using klipsch rp 600m and works great with these.
The only small point would be the front switch is a bit sensitive it sometimes doesn't turn it on so I turn it off and on at the power point.

Great little case to match the ones supplied with the full ACA kit. I ordered the no holes on front cover option, which took a little thinking about since the included instructions are for a drilled cover only but it went together very well once I'd worked which screws to use in the blind holes on the front. Super fast FEDEX delivery from Italy to New Zealand. I'll be ordering more for Phono amp and power supplies before long.