Dr Z Amp Question

[sling blade]

I purchased a used maz 38 about a month ago. Its really cool but it is so loud its crazy. Is it possible to remove two of the power tubes to reduce the output to a more useable practice level? Can I do it without screwing anything up? Any info would be appreciated.

[Eracer_Team]

Why don't you ask Dr Z direct?

 

Here's all the information you'll need to get in contact with Dr. Z Amps:

 

By Email

sales@drzamps.com

 

By Mail

Dr. Z Amplification

17011 Broadway Ave.

Maple Hts. OH 44137

 

By Phone

Phone: (216) 475-1444

Fax: (216) 475-4333

 

 

If your Z amp needs service contact the repair department by clicking HERE.

 

Please note: All repairs on used Z amps will incur a $60 minimum bench charge.

All repairs on used Z amps have a 90 day warranty.

 

 

 

you could always add a Dana Hall VVR circuit to your amp cheap ( http://www.hallamplification.com/main.html?src=%2F#2,2 ) that would take the B+ voltages inside the amp down to something like 25v which would make the amp wispher on its lowest setting

or

you could go with a webber mini-mas ( http://www.tedweber.com/atten.htm ) attenuator

[stein]

Calling "The Man" is a good idea.

 

Just in case there is anything weird about the circuit, and also, if the tubes are out of order, they can let you know which 2 tubes to take out. The might also be in a position to give you an idea how forgiving the design is, as in how much of an impedence mismatch it would handle.

 

This is exactly the route I went with my Victorilux. Same tubes in fact.

 

Once you have dropped 2 tubes out, You really should address the speakers and impedence regardless. With 2 EL-84's, it would be about 20 watts at the most, which means you only need one speaker, AND it also means you can use anything from a p12R and up. A single speaker, or a lower wattage speaker would go a long way toward the direction you want to go.

[ZenKen]

Don't hate, attenuate

[sling blade]

Thanks guys, I will follow up on your suggestions.

[Tim Plains]

You cannot remove power tubes on a cathode biased amp.

[badbluesplayer]

You might be able to get an amp guy to put in a low power switch that will cut out half of the power section when it's engaged. I'm not sure exactly how to do it, but I'll bet somebody does. :unsure:

 

The other thing is - The amp has a master volume. I guess maybe that's not the kind of "lower volume" you're looking for. But, of course, that's what Dr. Z puts on the amp to do what you want.