Choose amp

[Christost]

Hello i need help for choose amplifier for my speakers polk audio r700..
I try to choose about purifi 7040 or purifi 6525 im thinking if 6525 is small for r700..
I Use minidsp shd for pre and 2 sb 3000..
I want to choose better amplifier and from future if change speakers for better ...
My current amplifier is Cambridge audio edge w and I will turn to class d
Thnx

 

[voodooless]

Your amp is fine. If it goes loud enough, keep it.

 

[DanielT]

The amps you mention could be alternatives. But why change the amp, see voodooless post above.

Your speakers don't seem to be that tricky to power up. Plus, they have pretty good sensitivity:

The bottom line from the impedance and phase graph is that pretty much any normal amplifier will be able to handle these speakers with no problem.

I measured the sensitivity at 88.9dB at 1 meter for 2.83v.

Polk Reserve R700 Floorstanding Loudspeaker Review

In our in-depth review of Polk Audio's Reserve R700 tower speakers, we look at just how much of the performance of the stellar Legend series has trickled down to the more affordable Reserve series.

www.audioholics.com

 

[Beave]

More Polk R700 test results here, from the Klippel NFS at Erin's Audio Corner: https://www.erinsaudiocorner.com/loudspeakers/polk_r700/

Consistent with the posts above, it looks like a fairly easy load due to its combination of sensitivity being a bit above average and its impedance not dropping very low.