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
The TAD-150/TAD-60 combo has been viewed quite enthusiastically in this thread. I have read elsewhere of a Cayin TA-30 integrated getting paired with the TAD-150 and receiving glowing reviews so the TAD-150 had fans in a number of camps.

I know there are other pre-amps out there I’ve seen suggestions of using:

-- Monarchy Audio M24 tube DAC/linestage
-- Quicksilver Remote linestage
-- Eastern Electric Minimax
-- Octal-based Mapletree Linestage 2A SE

Now that the TAD-150 plant has closed, has anyone heard from Paul G. whether he is going to find a substitute? Just curious now that the TAD-150 is no longer available, in addition to the above suggestions, what are people are thinking of matching to the TAD-60.
The Tele smooth plate was the better of the two for me (more extension and vibrant) but in general I wasn't impressed with either. I think unless you spend big bucks to go for the ECC variants of Teles, you're money is best spent elsewhere. I thought the Mullards (longplate), Raytheon 5751, RCA 5751, & Sylvania 5751 (all 3mica bp) were superior and offered a huge improvement when compared to the Teles. I also liked the Groovetube which is supposedly based on the Mullard shortplate. I have ECC801s (the t7) in the TAD150 and they are absolutely stellar so I'm not a Tele hater. And if the ECC803s (the x7) weren't super expensive I'd have demoed them, too. The x7 I finally settled on for TAD60 (no joke my shopping is done) is the Sylvania. This tube is everything folks say it is. A close second is the Raytheon. The Sylvania edges it out with its awesome mid-range.
Should be getting my EH 6CA7s today on Paul's recommendation. Can't wait to try them. How long have you been running yours?

Dave