Tank's latest DIY setup

TankPopper

Well-Known Member
I’ve been waiting for quite a while to write this post.

About a year ago my wife and I moved once more (second time in two years), and once again it involved extensive refurbishment of our new residence. This gave me a perfect opportunity to re-imagine my setup.

During that time I also reached an important conclusion - the only way for me to reach the exact result I want is by building everything myself. Only this way will I be able to tinker with every part of my system without the fear of causing harm because I will know each and every cap, resistor and tube.

And maybe it was just an excuse for me to build more stuff, which I love to do.

Now, when it’s finally done, I can share it with all of you. Due to the amount of text and images, I decided to break this into a number of posts. So let's start!

My new living room refurbishment

From the very first second i knew i had a problem.. The wall my setup was stationed against was shared with my neighbors, and I had strict limitation on acoustic treatment. Therefore, the first thing I did was to cover the wall with a layer of 18mm MDF and a layer of drywall right over it, just to block any noise from my house to my neighbors. It worked, no complaints (and I did my best to get them…).

The power line got its share of attention as well, with a dedicated phase and a 4mm screened cable coming directly from the power board (is that what its called?). I cannot attest to any change this made, as I didn't hear my setup without it in this space, but I can't complain either.

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My setup received a new “house” as well in the form of a new credenza I made from Bamboo and Valchromat (a form of dense MDF that comes in a variety of colors). In retrospect, I would have made a smaller credenza. At 50cm deep and 1.8 meters wide, it's huge, and I sense it has a negative effect on my soundstage (something I need to test later on).

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And that’s it for now. My next post will be dedicated to my speaker.
 
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Thanks, everyone!

Let's move on - My speakers.

After living with a pair of Tannoy Dual concentric (in a variety of configurations) I decided it was time to move on, and the natural choice was Open Baffle.

PureAudioProject Trio15-TB

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First things first, Let me clarify - I work with PureAudioProject for a number of years now as a freelance Industrial Designer, and I was involved in the design of these speakers.

And about those speakers - These are PaP’s entry-level model for its 15-inch configuration, with a pair of proprietary 15-inch woofers on each side, and a Tang Band 1808 full range driver at the center. The crossover is incredibly simple with all Mundorf components. My set also has the latest version of the aluminum frame.

Ironically, this is where I cheated a little bit. Even though these speakers are self-assembled, and even though I took part in their R&D, they are actually the only component in my setup that can be purchased by other people.

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As you might have noticed by now, my listening space is far from ideal, and the decision to go with OB made my life much easier, as they seem to blend right in.

Next post - Amplification.
 
Those speakers look fantastic! Love the look of the rack as well. Did you build that too? The design of the legs is really cool.
 
Ok, let's keep going!

Amplification

This is where I probably made my biggest step forward. About a year ago I had the opportunity to pick up a pair of Tamura 2020 output transformers for a great price. I wasn't sure about it, but a close friend of mine happens to be a world-class tube gear designer, and after a brief conversion with him I went ahead and got the tamuras. And so I began gathering all the parts for a pair of tube monoblocks.

Throughout the process I kept looking for shortcuts, I was impatient and cheap at times… I kept asking my friend if we can just wind the rest of the transformers locally, and the answer was no every single time. Boy am I glad he stopped me there.

And in the end, I really did get the best components possible (or close). The outputs, the interstages, and the chokes are all Tamura, and the power transformers are from Hashimoto Sansui. After a few months of painstakingly sourcing all the parts, I had them all including the schematics my friend gave me (his own personal design).

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The amps are incredibly simple, with a single D3A input tube and a pair of KT88 outputs. It's actually designed for KT120 but I never got around to order them.

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The chassis was matched to the rest of the system as well, with a 3mm aluminum top plate and a Valchromat and bamboo frame.

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The result is nothing short of perfect (for me). Given my very efficient speakers, I have no lack of power, and the mix of clarity, openness, drive, and musicality the amps provide together with the Tang Band 1808 is just to my taste.

My preamp is actually “old”. I build it a couple of years ago, with my friend’s guidance as well, and I do plan to upgrade it in the near future.

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It has a super short signal path, with a single ECC82 tube per channel and a UTC A-20 output transformer. The power supply has a locally wound transformer with 4 giant Mundorf caps.

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Michael, my friend, is a true artisan and incredible tube expert, and I have to thank him for these incredible amps and preamp, they are truly one of a kind. I could have never reached the end result without him.

up next - My analog setup.

Tank out.
 
Those speakers look fantastic! Love the look of the rack as well. Did you build that too? The design of the legs is really cool.

Yes, I did build it myself, and those legs were a pain in the ass.. they actually broke down about 6 months after I made it and I had to screw them into place. I really do need to build a new one.
 
I vaguely recall on this forum or possibly another you were investigating the build of an Aikido preamp. Is my memory serving me correctly?
 
Lovely room and the setup. This is first time I came across this speakers and - Wow! They look sweet :) Enjoy.
 
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