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Hello! My grandfather recently gifted me a pair of Dahlquist DQ-10 speakers, along with a G.A.S. Son of Ampzilla power amp and a Thoebe preamp. He also gave me a Hitachi FT-920 tuner, although it's currently in the shop.
After refoaming one of the woofers, cleaning the amplifier, fixing a loose...
One of the best amplifier designers produced some of the best power amplifiers ever, over fifty years ago! BONGIORNO. My favorites were SAE (Scientific Audio Electronics) and GAS (Great American Sound).
One of the BEST technical engineers that knows and understands these amplifiers, and is...
Just spent days trying to find resources for a detailed evaluation/recap/rebuild of some very persnickety power amplifiers. Gobs of Marantz bench experts but SAE, not one was found. No mention of GAS or SUMO either.
Do any of you guys know any deep bench guys that understand these amps and...
Hi,
I have picked up a GAS Thoebe preamp. It has been recapped and is otherwise in great shape. I'm listening to vinyl through it, and it sounds excellent... with one snag. It hums. There's a low hum coming out of it. The hum gets lower and higher with the volume; when I turn the volume all the...
Hello to the fine folks of AK, and welcome to my second major restoration thread!
Some of you might be familiar with me from my first major restoration thread of similar naming (see...
This is a new thread for describing your gear upgrade path and combinations, and listening room mods and changes you have made over the years to finally enjoy an EQ free system with tonal neutrality and no listening fatigue and a satisfying hobby. It was originated by a @CelticWolf post...
Good day guys
I need some serious help and pointers. I have a GAS Ampzilla (Serial number E103217) with one channel blown.
Reading up on the web I fear that repair will be close to impossible considering these amplifiers were so complex and used proprietary parts.
Any pointers on substitute...