Spendor D7.2 Pairing - First Watt F8


I have a First Watt F8 with a Modwright LS100 as a preamp.  Considering the Spendor D7.2's to replace my Zu DW 6 Supremes.  The Spendor's are rated at 8 ohms and 90db efficiency - their specs show amps from 25 -200 can handle them.  The F8 puts out 25 Wats per channel into a typical 8 ohm load and loves efficient speakers.  Anyone here running this combination or have thoughts on the Spendors paired with a Class A like the F8?

norust

Showing 1 response by avanti1960

@norust

I believe there is some risk because the F7 does not double its output at 4 ohms and the D7.2 has impedance dips to 4 ohms at key bass and midbass frequencies. What that means is you essentially have a 13 watt amp which will be challenging at best.

I did run my D7.2 with the Pass XA25 which was an incredble sounding match. The XA25 was measured to output 130 watts at 4 ohms and handled the D7.2 with ease.

I suggest you look for speakers that do not dip below 6 ohms or 8 if possible regardless of sensitivity.  

Something like a Harbeth 30.2 XD or Pure Audio Project Duet 15.