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In Reply to: RE: Sennheiser posted by LWR on November 04, 2013 at 17:49:10
See if you can find a SinglePower (SP) MPX3 model. SP is no longer in business for good reason; however, having read extensively about SP and having owned one of these models, I have not seen much cause for alarm. It is an OTL amp that uses the 6SN7 (all models) for the two output tubes and can run many different input tubes, both octal and small pins, some with adapters. Some models of the MPX3 (Slam, I believe, was the designation) also allow using 5687/7119 as output tubes. Your headphones sounded fabulous with this amp.
Due to SP's terrible reputation, they are quite inexpensive if you can find them in the used market. Some (not all) versions of the MPX3 had safety problems that are easily fixed; the only other defect I know about was undersized power transformers (in 1 case), which is also easily remedied by a replacement Hammond. I fixed my safety problems and never had an issue with the PT since it was over-sized to begin with.
This is already more than you want to know.
I sold mine because I wanted an SET headphone amp.
Observe, before you think. Think before you open your yap. Act on the basis of experience.
Follow Ups:
this with the optional tubes. Thank you ....
Should work fine as far as high impedance. I would find out which tube most affects the sound before spending the kind of money he wants for tube upgrades (which can be had for less, elsewhere anyway).
Happy listening.
Observe, before you think. Think before you open your yap. Act on the basis of experience.
I find those 2 upgraded tubes at a better price? I know zip about tubes BTW.
The driver tube(s) are very common and the quality of vintage tubes sold as NOS is all over the place. The 7308 tube is pretty-very costly, and may not be worth it. Wait until you burn the amp in.
I am not familiar with the power tube. I'll look around and get back to you. I don't have my address file handy at the moment. Still, I would wait to get the amp burned in before i did any tube rolling.
Observe, before you think. Think before you open your yap. Act on the basis of experience.
I followed up with a second email to you via aa.
Observe, before you think. Think before you open your yap. Act on the basis of experience.
I will pursue what you mailed me later today...
Maybe you know this site. Lots of info Woo-wise.
"If people don't want to come, nothing will stop them" - Sol Hurok
a Woo fest, I knew about the site but not that part of it...thanks...
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