diyAudio Store

The PCB from DIY audiostore is well designed and of good quality. The layout is exactly according to the published schematic. I just have one suggestion: the decoupling caps are between the pot and the opamp. In my builds I put them directly at the input. Otherwise the pot will probably generate a scratching noise if there is DC at the input. For the next order of PCB‘s in my opinion it is worth thinking about changing the layout.
I added the Khadas Tone Board DAC to my build. So I have an excellent DAC/headamp in a small chassis.

I finally got the time to build the complete kit I ordered late last year. Using 6L6's guide (thank you!), the build was painless and not particularly challenging. I made a stupid wiring mistake from the potentiometer to the board and had no sound from one channel, but I managed to diagnose it relatively easily with a visual check of all connections; other than that, everything worked as it should. Was easy to check voltages and adjust the trimmer pots, and I've been happily listening all day.

This thing is very sensitive to interference. At first I had it sitting on top of my DAC, and there was a tremendous amount of noise, but when I moved it 6 inches away and to the side ALL that noise disappeared. However, the only microphonic I've noticed is a ringing that happens when I switch inputs (it goes away quickly). The sound of this preamp is really lovely: comparing it side by side with my old passive buffered B1, the nutube unit has more gain and is much more euphonic and pleasant, while the passive B1 buffer sounds very clinical. While the passive buffer is no doubt more accurate, right now I much prefer the sweet harmonic sound of the nutube B1.

The chassis is solid, well made, easy to put together, and looks nice. The circuit board is really well made and solders easily. Like all kits from the DIYAUDIO store, this is a terrific product, and I highly recommend it!

This is the second Whammy I have constructed the first having been enjoyed by me for quite a while, this time I decided to "up the game" a little by adding a Burson Audio discrete opamp in place of the usual suspects. The quality of the circuit boards never fails to impress, heavy plating, high quality printing and a very good finish. Construction was without drama and all worked first time, though for the purpose of initial testing I used a generic "cheap" opamp when everything checked out OK then this was replaced with a Burson Audio V6 Classic. Amazing, no other word for it. The audio quality just goes to show the basic design is very good indeed, I am sure it performs as well if not better than anything "off the shelf" both in its own price braket and at a considerably more expensive level. As time goes on I am sure it will continue to improve as things "Burn in" .
This is a great project for anyone to tackle, you won't be dissapointed with the results I am sure, it is easily achieveable with modertate skill level and some patience.

Not sure what to say except: it works! I've finished my second 6P1 build now, and I've been very happy with the results of both. Happy with the handling/delivery time. Part works exactly as expected. Will definitely be getting my future Nutubes from here :)

This is the 4th TU series kit I’ve built from Elekit. As always it went together beautifully and sounds wonderful. I needed more inputs and a phono stage to go with my TU-8600RVK and I wouldn’t have considered anything else. I did upgrade most of the parts supplied with the kit (TKD volume pot, audionote electrolytic caps, prp resistors, sparkos voltage regulators, amtrans golden black paper and oil caps for the phono stage along with the 2227 opamps, then solen agm silver metalized caps after the tube stage.) The volume pot (2cp-601s took a little engineering to fit it’s a bit bigger than the one supplied but I didn’t want a “bottleneck” in the most important signal position. Worked perfectly with the first power up and is DEAD silent. Still breaking it in and love the fact DYI Audio offered a blue led as to match the TU-8600! Thx! Very Recommended

Decided to assemble a second Aleph J. Want to make it a present to a friend. Ordered PCBs and received them extremely fast. As usual, all parts are exceptional quality. Still working on the project, but will finish soon :)

Ultra-fast delivery, excellent parts, no customs issues (as always!). AJ playing again (had blown 2 transistors due to silly handling).Thanks a lot!

Awesome, easy to work with

Bought 2 to setup a small digital streaming system using Klipsch RP 600 M speakers. Have them running bridged mono blocks and they sound so good and far exceeded my expectations, perfectly balanced. Everything in the kit is very high quality and the chassis are very well built.

They push the Klipsch pretty loud.

I’m happy.

Im very happy how Its sounds.

Bought the Nutube and PCB/JFETs from the DIYA store, and sourced remaining components from Digikey (the Completion Kit was far and way backordered at the time) - Results were spot on at first power-up, even got lucky with zero Nutube noise - Sounds just wonderful as a front end for my DIY Pass A2.

All worked out well…definitely worth while.

Heavy duty construction with various use configurations. I haven’t used them just yet , but will on the DH 220C project. Thanks again DYI.

Schipping was very fast to Germany!
The First time i ever build an AMP. It works finde witout any rework. I solderd all parts in 2h. From Sound Point of View i can say its amaizing. I use the AMP with my diy Cobra horn BRT speakers. Now i Think i need a sende one. For VOL Control i use a schiit sys. Works great Togeter.

Just finished the kit and am extremely happy with the purchase! It took 2 partial days to complete and the instructions were excellent once I got used to the nomenclature.
The sound is amazing! Dead quiet even with the volume up (and no program material). I am amazed at how accurate the description of different tube types is so obvious.
I started out with a pair of EL-34s, the sound was smooth and clear in the mids and highs, and the bass was very good and tight. I then switched to the high setting of the power mode and put in a pair of Gold Lion KT-88s. Again I am hearing exceptional mids and highs, but the bass now has a “slam” to it that wasn’t there with the EL-34s. I am looking forward to rolling all kind of tubes through this amp as the overall sound quality with each of the tube types just draws you in and leaves you wanting to listen more!
I plan on installing some Russian K40Y coupling capacitors when they arrive and look forward to seeing if they produce any notable difference.
I would highly recommend this amp to anyone who has some experience soldering and is looking for a fantastic amplifier to roll tubes and enjoy fabulous sounding music!