How does the effects loop work in the Quad/Studio preamp?

[Mr.Buu]

Theres no explanation in the manual, since effects loops are normally post preamp, im puzzled as to what stage the effects loop signal is situated in these preamps, I assume its post tone stack (after the stage that the main knobs on the front deal with) but pre amplification?

 

[JD]

Effects loop in Studio Pre is after Eq
Effects loop in Quad is after EQ Reverb mixer circuit but before pull deep Tube
Google the schematics

 

[Markedman]

I don't use the effect loop, it's too compressed sounding using the return and master volume, for my taste. Instead, I go from the send to my loop effects and then to the power amp. That last stage, master volume is a tone sucker, whereas when I go straight from the send it very open sounding.

I learned that from the manual!

 

[Mr.Buu]

I don't use the effect loop, it's too compressed sounding using the return and master volume, for my taste. Instead, I go from the send to my loop effects and then to the power amp. That last stage, master volume is a tone sucker, whereas when I go straight from the send it very open sounding.

I learned that from the manual!

Thats pretty cool, for now im stuck with it as im playing direct, the recording out makes a huge difference in tone. Might sound like a dumb question but do you know if you can plug straight into the effects loop, and completely bypass the input 'Instrument' jack? I guess the relevant front knobs assigned to the pre effects loop stage get made redundant, after consulting the schematic.

 

[MetalCFH]

I don't use the effect loop, it's too compressed sounding using the return and master volume, for my taste. Instead, I go from the send to my loop effects and then to the power amp. That last stage, master volume is a tone sucker, whereas when I go straight from the send it very open sounding.

I learned that from the manual!

I'm going to have to try that out later. Had my quad for a few weeks and it's been amazing.