I don't know what has happened with the common combination of power amplifier with input selectors? Have they vanished?
I need a small, affordable Class D power amp, that I can select if I feed from my PC or my laptop on my desk.
Is there a solution you might suggest that comes in the same box?
Terminology wise, I think you are referring to an
Integrated Amplifier, which combines a
power amplifier with a
control amplifier ("preamplifier"). You're looking for a contemporary version of an Integrated Amplifier. Integrated Amplifiers typically had multiple inputs and outputs. RCA inputs would include a phono preamp stage, CD input, tape input and aux input. There would be an RCA output to feed an external recording device (cassette, open reel, DAT, MiniDisc or CD recorder). There might be an output to feed a subwoofer. There would be one, or two, sets of speaker connection jacks.
Some Class D amps I've seen are functionally "
in-between" a dedicated power amp and an Integrated Amplifier, in that SOME have tone controls or have multiple input types (RCA jack, 1/8" jack etc.) but not any ability to switch between distinct source inputs. The user lacks the ability to have multiple sources connected, and being able to readily select between sources without disconnecting and reconnecting source cables (causing wear-and-tear on the input jacks over time).
Causing further confusion is that over the past decade, the industry's definition of "
preamplifier" seems to have changed from
control amplifier to either an "
RIAA magnetic phono preamplifier" or a "
vacuum tube sound enhancer", neither of which increases the ability to use and switch between multiple sources.