Purchased new in 1992 a STA-2700, for a quick system in bedroom after my Mac dealer offered me a set of floor model XRT-18`s for a very attractive price.
Went into the Receiver disconnected the power amp section input, also disconnected the phono input jacks from internal phono stage, so the jacks could be wired up to the receiver`s preamp/tuner`s output for better external amplifier connection(2 mono`d Crown DC 300`s).
And used it in that modified configuration until my Mac dealer called me up and offered to sell me a abandoned & partially paid for layaway Mac preamp & tuner from one of his customers, which were more modern than my existing Mac pre/tuner being used in my main living room`s system.
So I swapped out the new Mac for the old and installed the old in bedroom.
Now I had the RS STA-2700 with no home, but realized that I could return the receiver back to normal internal configuration(less the phono reconnection) and use it in my spare bedroom for my all day music.
That receiver has not needed any repairs(or even spraying the 4 analog controls) ,or any internal adjustments since it`s purchase.
It runs 24/7, and has not been powered down for close to 20 years driving 2 Minimus 7`s and a RS passive 12" subwoofer and is playing as I type this, as it does every day, all day at around 80db SPL since installation and sounds quite good.
It runs warm, but not hot.
It is the second receiver that I`ve ever owned in my life, since I chose to go the separate`s route, in 1977.
I don`t know, or really care who made it for RS, but I have no complaints about it`s quality & the included remote is very handy for muting to take a phone call.
FWIW folks.
Take care, and enjoy the music.
Kind regards, OKB