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My (very limited) understanding of the quad is that a higher impedance (15ohms) is better than lower.. these Alpairs are 7.2ohms
I only had a quick look at the schematic but it’s not a class A amp so it won’t be too fussy about the speaker impedance. Assuming it’s nominally designed for 8 Ohms, you’ll get a lower output with 4 or 16 Ohm speakers. With 4 Ohms you’ll be asking the amp for more current and it’ll max out lower down in the volume range. With 15-16 Ohms it’ll be limited by the output voltage and it’ll start to clip at the top end. Unless you’re running the amp at its full output I think you’ll be unlikely to notice though.
Jonny69-
Thanks for the explanation.. I’ll proceed as planned .. amp comes back next week so I’ll be running it with my current Kef Q3s initially which are 8 ohm
@dbr those look great but I’m up in Leeds (so shipping likely prohibitive or, at least, expensive) .. part of my plan was to build the frugalhorns myself as a project.
I might be interested in buying the Alpairs separately if you were willing to remove them from the cabs (same caveats around postage) assuming you had other drivers you’d use in their place.
smithchild
I have my Quad 33 and 303 coming back from a full service and re-cap etc.
I’m interested in building some frugalhorns (using Mark Audio Alpair 7S full-range drivers)
Can somebody here tell me whether this makes any sense as a pairing?
My (very limited) understanding of the quad is that a higher impedance (15ohms) is better than lower.. these Alpairs are 7.2ohms