diyAudio Store

Get some of this and make you diy easier.

I had been thinking about buying or building a tube amp. Then I discovered the Nutube. This was a fun diy build project resulting in a great sounding pre-amp. I plugged this into my ACA and noticed a new dimension to the music.
When I started this project, the completion kit was not available so I ended up sourcing those components. Another learning experience.

As a longtime audio hobbyist this particular product is new to me, having used numerous solder types previously including another popular brand eutectic. So far I’m finding FIRE-METALL is terrific for wiring passive crossovers, as well as for terminating speaker cables and interconnects. It has excellent joint strength and looks great too in case the finished work will be exposed. I expect to see the same desirable results with PCBs though I rarely dabble with them.
When experimenting with eutectic solder for the first time it can be tricky to command, but once the correct temp is dialed in your project(s) will thank you and your patience will be rewarded.
(With their rebuild still in progress, the first-order crossovers depicted belong to a pair of ‘70’s era Rectilinear XI’s… a ported 10” 2-way bookshelf design employing the ever popular 2” paper cone tweeter with phenolic-ring surround. Only the sand-cast resistor being kept for posterity, all else upgraded. FIRE-METALL used throughout to optimize performance and longevity.)

The amp sounds awesome! Just take your time, follow the directions, and you can’t go wrong. I had a slight hum on the initial build with no sound but went over all my soldering and found the issue and has been working ever since. I even had mine specially powder coat painted in a color of my choosing which makes the amp even sexier! It’s a great SET amp for the price with all high quality parts. A definite end game headphone amp.

It came nicely packed and I actually bought this FET Kits separately and bought the other parts to complete the whole Aleph J Amp. The sound signature of this design, thanks to the very generous Mr. Pass is so unique with holographic and engaging sound stage, well controlled lows and very sweet mids and highs.

This is my reference DIY amp now after building the ACA and the F4. Its is just a cut above all the ones I built. So worth the time and money and I am delighted I decided to build it.

Just had the V5i installed inside the DAC and the improvement manly in stage and sensing more details is obvious

A great device works great and handy having all components in kit

I've just built B1 around those. Haven't auditioned it yet, but the oscilloscope says it's basically perfect 10Hz-500kHz. I'm very happy so far, I'll probably come back for more.
Cheers!

I had great fun putting the kit together and assamble the unit. With all the online info on "how to" no problem although it is not my first and not my last kit.
Soundwise...nice and smooth i'm using it in stereo mode at the momemt but will get onther kit and get them used as mono blocks.
Shipping was fast out of the US and the shipment from Italy for the enclosure was fast as well.
Great fun and value for money.

FETs are perfect, matching is 100%!

This is my first power amplifier build and simply it is one of the best hobby projects that I ever had.
Thanks to 6L6 on well documented illustrated building guide and later on all useful recommendations and answers on F6 building forum.
For the novice, stick to the building guide step by step and you can't go wrong. I wouldn't say that it is easy cause you must have some basic knowledge about electronics, soldering and you need time and lot of patience, but this is right place to start.
Other than that, DIYAUDIO proved to be excellent service provider with top quality parts and service desk.
I will put my observations and possible improvements for more easier builds:
1.) Include Matched JFETs (Toshiba 2SK170/2SJ74 Quad Idss 8-11mA) in drop down menu for F6 clone kit.
2.) Include Matched MOSFET in drop down menu for F6 clone kit.
3.) I’m wondering if the chassis for the F6 could be deeper (e.g., 400 mm) and consequently have more space and better cooling. I have used recommended Deluxe 4U.
4.) Be careful with the 3296 Trimmer Potentiometer. It caused me a lot of trouble. Take care of it for good soldering and later during BIAS adjustment procedure.
Now I'm enjoying in my first F6 build. The sound is pleasant, warm and you can listen to the music for hours. Thank you, Mr. Pass, and 6L6 once again.
I have already started another DIY project with Nutube Korg B1 preamplifier. See you soon.
Good luck to all DIYers!

Great headphone amp haven't used the pre amp function yet. Whammy amp next.

Very nicely made chassis kit. Especially the machining on the heat sinks and the front and back panels. Arrived in perfect condition because of the extensive care taken in how everything was protectively packed and fitted into the shipping box. This is my second one. The last one I assembled houses an F5. This one will be fitted with F6 boards.

I'm very pleased with the style, quality and overall appearance when attached to the faceplate . Planning to add these handles to more of my Diy Audio store chassis.

This kit was a fun, easy project to accomplish. Take your time, follow the excellent build guide and in an afternoon (or two) one can have a couple of very decent amps. Nelson Pass designed it and I built it. Brilliant! All parts were high quality, build went perfect.
Now I "need" more efficient speakers, lol. Oh, the sound is wonderful, especially for the price.