This is a Made in USA ADA Microtube amplifier in perfect working order. It is an excellent amp for guitar or bass amp rigs. It has a 12AX7. I’m not going to buy another one. I’m not gigging so I’m not in a rush to run out and buy. Maybe I’ll save up my mo Anonymous Reviewer’s review of ADA. Every now and then, I see an ADA MicroTube power amp pop up on eBay or in a local shop. I’ve had a Microtube for about two years.

Author: Vizragore Tygoll
Country: Kazakhstan
Language: English (Spanish)
Genre: Politics
Published (Last): 25 May 2015
Pages: 232
PDF File Size: 16.24 Mb
ePub File Size: 16.80 Mb
ISBN: 712-2-19132-943-4
Downloads: 63280
Price: Free* [*Free Regsitration Required]
Uploader: Gozahn

Elantric’s Tips and Blog: Its a great sounding power amp, and well worth the money IMO. It jicrotube getting kind of old trying to hit just the right spot where the photo sensor is located with a flashlight.

Overall, I’m really glad I picked one up in the end. Both were a good solution to lugging around a heavy tube amp, and i prefered closed back speakers. The other issue it does have is that it goes into a “protect” mode and it takes a long time about micotube minute or two for it to power up sometimes.

Please update your browser to use Reverb

However, I’ve also heard that they have some reliability issues. Any problem can be solved by the suitable application of nuclear weapons.

The solution is to buy a 75 cent neon light, pay the 5 dollar shipping fee, and microtuube it in. ADA MicroTube power amps – worth it? Join the HC Newsletter.


They did a good job with the hybrid tube setup, I suspect they may have lifted this from part of their ampulator circuit: It has never required repair and does not suffer from long power up times. I’ve read that they really just use a couple of 12AX7 tubes to “warm up” a solid state tube section, but being that there aren’t many affordable 1U tube power amps out there, I’m tempted to try one. I had heard about this and considered this as a potential issue when I bought it, but being an ADA fan, and having a certain amount of faith in mucrotube stuff and the support ADA depot helped me not worry too much about pulling the trigger on it.

ADA MicroTube power amps – worth it?

I own an old ADA microtube power amp that has seen years of good service, but now it will not power up and stays in protect mode. Help FAQs Go to top. I love having a presence control on the power amp. Anyone own one of these? Shine a bright light into the front vents behind the micdotube protect light when powering on.

I like that I can carry everything I need on a adq space rack.

ADA MicroTube power amps – worth it? | Harmony Central

So far, I’d say they are very reliable given my experience to date. I’ve had a Microtube for about two years.

That’s incredibly useful and the ability to run it true stereo or bridged mono is nice. A web search offered up mixrotube the solution to my particular issue.

However, my understanding is that it does not affect normal operation and it can be corrected by replacing older caps in the “protect” circuit, if necessary. View the Media Kit. Finally got around to changing the neon lamp and the power amp Powers Up Normally. Over time, that neon light gets dimmer. Thanks for posting that link. That’s the only total failure I’ve had in the 7 years I’ve owned the thing. September 30, Login or Sign Up. The 1U space microtkbe just great: January 06, Appariently the brighness of neon protect light is somehow tied to under current detection and that under current keeps the machine in protect mode.


Advertise on the most comprehensive and widely viewed musicians’ website.

The issue Tomcat refers to is a fairly common one where the power amp will take a while to start, and may be where you picked up the idea that they had reliability issues.

I’ve been very happy with it. That’s a great resource site for us ADA owners.

As far as reliabilty goes, mine only totally crapped out once, but with the help of the folks at www. I have a Microtube Please login or register. This topic This board Entire forum Google. Occasionally I have to toggle the power switch to get it to fire up, but other than that it works great.