Amp/Preamp Asylum

RE: QS V4 Bias meter replacement

73.229.163.4

AbeCollins

A

In Reply to: RE: QS V4 Bias meter replacement posted by Mr_bill2 on July 08, 2024 at 13:08:14

Some companies are extremely good with customer service. I lost the heavy brass spikes to my Thiel CS2.4 speakers several years ago after a move. I asked Thiel if I could buy another set along with some black touchup stain. They sent it all to me FREE of charge no-questions-asked. Too bad some of the good ones have gone out of business.

Hope you get your V4 fixed. I've always been curious about those Quick Silver monoblocks but when they show up used they fetch a hefty price. I'm not sure if those premium monoblocks are still in production.

Follow Ups:

VTL is another - E-Stat 23:53:35 07/08/24 (1)
in the 23 years I've owned MB-450s, both power switches and one coupling cap have failed. The switches are easy replacements using lug terminals and the cap's leads were perfectly pre-bent for easy soldering.

Bea Lamm was very helpful helping to diagnose the cap failure which inhaled its output tube and the high voltage rail fuse. Zero ohms across the leads!

With older ARC amps, such an event would have burned out a resistor instead of the fuse. VTL's approach is more tidy. :)
- ARC: More than a burned out resistor - AbeCollins 17:14:19 07/09/24 (0)
  I've seen more than one ARC power amp like the VT100 series and similar ARC designs advertised on Audiogon with black char marks where a segment of PCB copper trace caught fire and evaporated. The common fix is to clean each end of the open copper trace and solder a jumper wire across the gap. In one ad the owner rated the amp as 9/10 excellent condition when you can plainly see the repair in the posted photos. I suspect the owner may have bought it used and had no clue that it burned up and was repaired.
  
  Edits: 07/09/24
RE: QS V4 Bias meter replacement - Mr_bill2 15:04:06 07/08/24 (0)
Yeah, Mike Sanders is one of those guys. Seems like the industry now is a little different from back when I stated in the early 70's. Not hating on the new stuff just seeing a lack of group community as these guys disappear.

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