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SOLD: SinglePower Extreme (fixed)

post #1 of 10
Thread Starter 

First of all, everyone interested in a Singlepower amp needs to read the following threads:

http://www.head-fi.org/forum/thread/333677/where-is-singlepower-where-is-mikhail

http://www.head-fi.org/forum/thread/437344/my-singlepower-supra-experience-why-mine-almost-blew-up-like-a-hand-grenade-and-yours-might-too

http://www.head-fi.org/forum/thread/437708/warning-about-the-singlepower-extreme-owners-please-read

 

 

Up for sale is my SInglepower Extreme amp. I bought this amp from nurxhunter in the following thread:

http://www.head-fi.org/forum/thread/478975/withdrawn-singlepower-extreme-fixed#post_6497791

The above thread details the changes and fixes that have been done on this amp to increase its safety. The overview of this amp is that it was a stock Extreme (no modifications made by Mikhail) that nurxhunter took to a tech. The tech added a second transformer to deal with the underspec stock transformer, bypassed the R54 resistors to bump up the heater voltage from 5.7 V to 6.1 V, and installed an in-rush current limiter. That being said, there is always a small amount of risk associated with SinglePower amps. Personally, I have noticed no problems with this amp. It is certainly a warm amp, but I can put my hand on it after a few hours of running it without burning myself. It sounds GREAT, which is one of the best benefits of owning this amp.

 

I will include the following tubes as well as the Singlepower ECC #1 adapter:

Output tubes: 3 RCA 6AS7G (I think that 2 of these make some faint crackling noises, which are noticeable without music playing)(the previous owner is providing 2 used but testing as NOS Raytheon 6AS7G to replace the 2 tubes that failed), 2 Raytheon 6080, 2 RCA 6080
-Driver tubes: RCA 6SN7GTB, RCA 6SN7GT, Motorola 6SN7GTA, CBS Hytron 6SN7GT, Sylvania JAN 6SN7GT, GE 6SN7GTB
-Driver tubes with ECC #1 adapter: Raytheon 5670, Sylvania 5670

 

I will also include the power cable, but all other cables will not be included. I will throw in my unused Deoxit and Deoxit Gold so that you can clean up the tube pins.

 

I'm looking to keep this within the US. I'm asking $SOLD for everything, which includes shipping. Payment by Paypal. Please PM for questions.

 

Here are pictures of the unit. The last 5 pictures are from the previous owner, including pictures of the internals.

 

http://i34.tinypic.com/16kalv8.jpg Back of unit

http://i36.tinypic.com/6fyyar.jpg Back of unit with flash on

http://i38.tinypic.com/ekke9i.jpg Front and top of unit

http://i35.tinypic.com/uv4wj.jpg Top of unit with flash on

http://i34.tinypic.com/2j2i26d.jpg Top of unit

http://i38.tinypic.com/egestl.jpg Front of unit

http://i33.tinypic.com/2ue4o52.jpg Top of unit-picture from previous owner

http://i38.tinypic.com/dx1nkk.jpg Internal view #1-picture from previous owner

http://i36.tinypic.com/9jhzxl.jpg Internal view #2-picture from previous owner

http://i38.tinypic.com/31314k7.jpg Dual transformer design-picture from previous owner

http://i38.tinypic.com/rtjac6.jpg Front of unit-picture from previous owner


Edited by jeremyzone - 9/25/10 at 10:41am
post #2 of 10
Thread Starter 

Added more pictures, including internal pics. also added some details about the modifications.

post #3 of 10
Thread Starter 

bump

post #4 of 10
Thread Starter 

bump and price drop!

post #5 of 10
Thread Starter 

bump

post #6 of 10
Thread Starter 

bump and price drop

post #7 of 10
Thread Starter 

edited tube info about Raytheon 6AS7Gs

also, price drop

post #8 of 10
Thread Starter 

bump

post #9 of 10
Thread Starter 

bump

post #10 of 10
Thread Starter 

bump. got the Raytheon 6AS7G's in the mail this weekend, so more tubes for your tube rolling pleasure!

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