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Old 1st March 2009, 07:31 AM   #1
aft is offline aft  France
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Default What would suit the best ?

Hi all,

I'm currently building my 3-ways loudspeaker (separate cabinet for bass and Medium+Tweeter) based on the following speakers
Scanspeak D2905, 18W/8545K00, 25W/8561 all are 8ohms nominal except the tweeter that is rated at 6Ohms.

The sensitivity of the loudspeaker is in the range of 88-89dB.

All this stuff is going to be installed in a 45 squaremeters room.

I have been looking during hours to the amplifier that would suit the best, reading post after post (learnt a lot bye the way)
but unfortunately I'm not yet at that stage !

My main concern is around power required, are the 10 watts of the F3 sufficient for example or shall I look to one of the more
powerfull aleph.

Other question is the importance of the dumping factor, Shall I look to a specific range, knowing that I'm listening to various
lounge music where bass can be quit strong !

I would really appreciate your advises
Thanks, Raoul
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Old 1st March 2009, 08:10 AM   #2
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10W in a 45m2 room with average sensitivity speakers will allow you to listen to unaccompanied violin. Add a piano and it won't handle it too well

To achieve any realism with dynamic music in that room you'll be looking at more than 100W. Or at least i will.
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Old 2nd March 2009, 12:45 AM   #3
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As a rule of thumb you can add the power of all three channels of
each side to decide if you have enough. 3 X 30 watts is going to
behave roughly as a 100 watt full range.

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