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In the under $2500 category, diminishing returns?

In the less than $2500 (new/used) category for integrated amps, is there a point of diminishing returns?

Here's my situation, I'd like to set up a system around a pair of Maggies (MMG) I already have. One source will be my iMac with a Music Streamer DAC. I'll likely have a modest turntable soon too (Rega RP-1). I listen to a wide variety of things, but let's just say... Radiohead
I can budget upto $2500 for an amp, but would love to spend much less than that and sink the rest into CDs and vinyl.
An NAD C 326BEE can be had for around $4-500. A Music Fidelity A5 (used) for about $1500. Would there be a 3x difference between the two? Can I get a significant upgrade in sound by spending the whole $2500? I'd like to hear your thoughts.
adnan
hack
185 posts
 
Balanced Audio Tube Integrated
dayglow
1,900 posts
 
Since your budget is $2500 a Bada Purer 3.3se has plenty of power and current for the MMG. I know it's a BAT 300k clone but it sells for around $1200(new)at Pacific Valve. This gives you $1300 for a turntable-cartridge and phono-pre. Consider a new budget Thorens table over a Rega due to better build quality.
adnan OP
9 posts
 
Thanks for the advise thus far; there's a few NAD dealers around here, so hopefully I can against their stuff against some more expensive amps mentioned above locally.
goblue711
30 posts
 
I believe a used Musical Fidelity A5 (attainable for 1300.00 or so) is one of the best buys in higher-end integrateds. It would be far more dynamic and revealing of micro detail than the NAD you reference. If MF didn't change their product lines like the pope changes robes, its amps would be given the respect they deserve.
mwheelerk
121 posts
 
I have driven them with a Cambridge Audio 840A integrated with 200 watts at 4 ohms and now am using a Bel Canto REF 150S amp with 150 watts at 4 ohms and so far all good. I think these are probably minimum levels of performance, both are in the $1500 range. Ideally you not only want to be sure the amp selected is rated to operate at 4 ohm but also, preferably, that it will deliver 2x the power at 4 ohm loads as at 8 ohm loads.
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