Home Speaker Asylum

General speaker questions for audio and home theater.

I have a number of amps on hand .........

......Over Xmas I was toying with my system as I wanted to integrate my 2 channel and main HT setup.

The amps I was using to see how they would perform in two channel mode with my main speakers are.

• Musical Fidelity A300 integrated 150w x 2
• Musical Fidelity A308 integrated 150w x 2
• Pioneer VSX-AX10AiG receiver 200w X 7
• Denon AVR 3805 120w X 7
• Yamaha RX-V2400 Receiver 120w X 7
• Opera Audio Consonance Cyber-800 mono blocks 70w X 2

I am pretty sure ( no I haven’t looked at the manuals) all the amps, except the Cybers, are rated 20Hz – 20KHz into 8 ohms. The Cybers are rated <10Hz – 100KHz into 8 ohms.

Now in order of performance (which coincidentally correlated to how loud they would play as well)

1 The Cyber mono blocks were far superior in every way.
2 The A308 (just over the A300)
3 The A300
4 The Pioneer AX 10
5 The Yamaha 2400
6 The Denon 3805

Now the Cybers can play at concert levels continuously and sound way better than anything else I have. The MF gear can not quite reach the loudness of the Cybers and get VERY hot when pushed hard for 30 – 40 mins but I did live with them for a while before the Cybers.
All the receivers simply can’t play at concert levels and the auto overload/heat circuit trips when they are pushed (That is in two channel mode – load em up with 5 speakers and they run out of puff real quick)

My speakers are full range and rated at 90db 1w @ 1 metre and between 5 to 6 ohms. ( I’m on a new PC and currently can’t access my old data to give the measured details I have on the exercise)

I also have auditioned a Audio Aero Capitol Power amp with the same speakers etc ( 12 months ago though) and it is rated at 50 w and it also could play at concert levels continually. ( I was a tight-wad and passed on the purchase even though I was very impressed)

So DE I reckon the rated wattage of a lot of gear is a load of bollocks. ( I know receivers are notoriously over rated )

PMPO ratings are meaningless for musical applications. My powered PC speakers are rated at 480w PMPO and I reckon they are about 8 to 10 w in realistic ratings.

IMHO most speakers will sound wayyyyyyyy louder in room than out in the paddock. ( I have tried that with Paradigm Studio 100’s - they can play very loud in room but are no good in the paddock)

Um, yes, I am having a frothy one & we are all very well here indeed thank you.

Cheers to you and your three lovely ladies.

Smile

Sox





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