 
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
|
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
23.242.178.78
In Reply to: RE: Or, perhaps, it is the Buckeye input amplifier to blame? posted by 13th Duke of Wymbourne on December 24, 2024 at 14:22:02
Buckeye said they acquired an AP and recently posted they no longer have it.They did not give a reason why they no longer have such a pertinent piece of test equipment. That is a bit troubling and was a validation point for a potential customer such as myself who could box and wire a DIY kit.
For the initial world-wide review, one would assume they would inspect the review sample inside and out.
I was always taught, "Expect only what you inspect", because customers have much better memories when things go wrong than when they go right. I often found that personal inspection practice to not be ubiquitous in corporate/commercial life.
I am concerned about the half power shutdown. The Hypex SMPS can not fully power the 9040, but the amp shut down at half the Hypex SMPS's spec'd max output. It missed the 9040's max output in 2 ways. I hope that issue identified and resolved as well.
.
2022/03/30 Historical Records CENSORED
Edits: 12/24/24Follow Ups:
An AP unit is expensive and while it would be a tax write off I wonder how many amps you'd have to sell to pat for it. Jason Stoddard, of Schitt, wrote about chosing test gear in his blog though I don't remember the details but I think they have less expensive alternatives for final test. The catch-22 maybe that if you are selling products with claimed super-low distortion that you need super-expensive test equipment to prove it. Maybe the upshot for both Buckeye and Purifi is to run a very high power, high frequency IMD test and if the result is good enough on reasonably priced test equipment then it is probably good enough.
I've no idea about the power shut down. My best guess, as before, is that a batch.of boards were built with the wrong value SMT components and final test does not push power to the limit.
I own a VTV purify-based amp with which I am very happy. It's one of those amps that someone here likes to classify as built in a garage.
From their website:
"VTV Amplifier proudly uses the latest AP5x high resolution Audio Precision test equipment to certify and ensure performance. Test results are provided with each amplifier. "
Nice that the measurements are provided. It is obviously a well equipped garage. Jason Stoddard wrote in his blog about the humble beginnings of Schitt in his garage and didn't Hewlett Packard start life in a garage? And at this time of year we are reminded of other humble beginnings in an an out building.
