No idea if this is practical. How many devices in the
amplification chain need to be matched or are critical spec-wise?
If there are a small number, he could build a "matching amp" with
sockets specifically for devices to be matched. Swapping
individual devices and tagging matched pairs/groups as they are
identified would build a stock of usable devices. It might also
allow him to better identify the characteristics important to
achieve matching.
Donald.
On 12/7/24 14:49, wn4isx via groups.io
wrote:
Jimmy
designs complete home theater systems, video switching,
audio switching, audio tone/volume/balance, he provides a
loop for special effects like 3D decoders, and power
amplifiers, "regular" stereo and subwoofer.
The
last two orders of Freescale (Motorola) act funny. He orders
premium units, each one comes with it's own spec sheet. The
specs are within norms for his previous but the power amps
sound odd, hollow, sort of like left/right mixing giving
sort of L-R. Even when he only drives one channel, or both
channels in mono.
The
mid range, ~1kHz to ~4kHz is "wonky."
He's
my age and has been considering retiring, this might decide
for him.
[snip]
