Quote: "J Bellemare, that was the exact amp i was considering. If you say it will push the M80's...to LOUD volumes,(like concert volume) with no problems. Plus you really don't hear a difference between it and your old Hafler..works for me."

if you do the maths, you will see that an M80 fed with a GX5's full power will do extremely high SPL's and if you try it, it might make your ears bleed.
The GX5 can put out about 700-800 Watts in a 4 Ohm load; way more than you will ever need in a room.

room efficiency for the M80 is 95dBSPL/1W/1m
10 Watts = 105dBSPL @ 1 meter
100 Watts = 115dBSPL @ 1 meter.

At 2 meters, subtract about 3 dB from those numbers above; and
at 4 meters, subtract another 3 dB.
using 2 speakers, add 3 dB to those numbers.

Remember that movies have a max SPL of about 105.
115 dBSPL is the max. for the LFE channel (low frequencies).

Very loud peaks in classical music will reach about 112-115 dBSPL.


Last edited by J. Bellemare; 05/01/11 06:30 PM.
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or: Axiom Gallery