I used a passive with the 303 I purchased, but I needed a phono input and a Pro-Ject Box was obtained.
It all worked OK, but was a little untidy with cables, power supplies, etc. Back to Quad, I thought...
A early model 34 was found for me by a TAOS Member on another Forum's sales section and I obtained it for £100.
It was OK, but when I purchased a Denon DL110 MC the MM input's sensitivity required adjustment.
I found Keith Snook on the Internet, who specialises in Quad amplifiers.
He altered the sensitivity and serviced the Quad 34.
I have to say that, as far as I am concerned, the 34 matches the passive I used and has very useful tone shaping, which really does work.