Review: Tube Audio Design TAD-60 Tube amp


Category: Amplifiers

I'll start by saying that I've been into higher-end audio for a few decades now, and quite a lot of equipment has been through my hands to this point (half the fun of this hobby). Somewhere around 12 years ago, I'd come to realize that I preferred tube amplification over solid state in terms of an overall involving presentation of the music, and ever since then have owned tube stuff (brief flirtations with various solid state devices only helped to enforce this notion).

Which brings me to the discovery of Tube Audio Design, the provider of components conceived by Paul Grzybek (of Bizzy Bee Audio fame), built to his specifications by a very reputable Chinese manufacturer, and then hand-finished by Paul in his shop located in Wheaton, IL. (His offerings are available exclusively online; detailed product info is found at http://www.angelfire.com/biz/bizzyb/index.html)

The TAD-60 amplifier is built like the proverbial tank; overall appearance and heft (not to mention its specifications) in my experience indeed belie the modest asking price. With its stainless steel chassis and almost 1/2"-thick black anodized face, the relatively compact package portrays a masculine but elegant stance (also included is a lift-off stainless steel tube cage). All function controls are easily accessible from the chassis top, as are the tube bias test-points and adjustment pots (a digital voltmeter is included too).

EL34-based, the TAD-60 is rated at 60wpc in UL-mode, and 30wpc in switchable-on-the-fly triode-mode. Other standard features include adjustable input sensitivity and adjustable global feedback, adding flexibility to a host of possible preamp and speaker combinations (the input sensitivity control may also be used as a volume pot in a single-source direct input configuration).

Listening to the TAD-60 after the recommended 30 hour break-in period and beyond, the music really began to open up, and along with the TAD-150 preamp, I was experiencing just about every CD I spun in a whole new manner - I'm particular to small-ensemble jazz and female vocals - there was an in-the-room conveyence of the music that I found startling at times - present is deep, tight bass, a glorious midrange, detail, depth, and an overall natural presentation that allows hour after hour of enjoyable listening. I've found that the feedback adjustment permits a fine-tuning of balance between dynamics and warmth, and was able to "lock in" the amp to my speakers for what sounds to be a perfect sonic match (just a tad of feedback along with the triode-mode setting seems to be the magic spot in my case).

Without attempting to describe every sonic attribute I'm hearing (though I'm happy to answer any particular inquiries), suffice it to say that the TAD-60/TAD-150 combination strikes a synergy and glow that is especially musical, and is among the finest I've had the pleasure of owning. The TAD-150 has already been highly praised in at least a few user and online reviews, and I bet the TAD-60 will soon be recognized as a similar standout. If you happen to be in the market for high quality, reasonably priced, excellent-sounding gear, just take a listen for yourself, and you will hear what these components can do for music. (Paul also offers a 15-day in-home trail period.)

Note: I have no financial interest or business relationship with Paul Grzybek or Tube Audio Design.

Associated gear
Magnepan 1.6QR, California Audio Labs CL-10, Music Hall MMF-5/Goldring G1012

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ggeers222

Showing 10 responses by larryrx7

I have a pair of spendor s5e's with 150/60 combo and it really sings....very synergistic match
Hi Stan...Your comment about the tad 60 rings true because I have tried several el34 based amps, ie shanling, prima luna etc and this one just has something the others did not. Such is the mystery of this hobby.
Lou..I agree with you about the 6ca7's. I found the same thing you did..that the el 34's just didn't have tightness that the 6ca7 do in the bass especially in the set mode. I don't know if any further rolling would improve on these. What do you think?
Michael..I have replaced the 12ax7 with a nos sylvania and it seems to deepen the soundstage quite a bit...I have replaced the 12au7 with nos rcas and I can't that made a great difference
HI Matman...I have beening running a quad of jj kt77 in triode mode for about a month and I think these are the best yet with good tight base and mids like the el34. I also replace the ax7 with jan 5751 and with these changes, I think the amp sounds better than ever...How has your experience with the kt77 gone?....Same question for anyone elso also
Hi Stan.....I have tried the 6ca7, kt 90, el34....And think the kt77 just have a nice balance tight bass and ratain the lush midrange of the EL 34 valve....I also rolled in a jan 5751 in ax7 position and this seemed to further the improvement...I just don't have a real desire to roll anymore tubes....That's kind of unusual for our hobby...I also run a pair of spendor s5e speakers and get around this combo...Just sounds right to me
Hi MIchael....I think I got them from TubeDepot...So far they have been rock steady..and I really like the sound..larry
Hi guys...I just purchased a pair of vintage Spica TC50's from a fellow audiogoner and have been listening to them through my tad 150/60 combo and am truly amazed at the imaging these 20 yr old speakers project. Does anyone else have any experence with this combo?...thanks