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Old 05-11-08, 12:25 PM   #5 (Link)
 
tonyvdb
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Re: "Crank it up" - Cheap AVR's vs Headroom


Quote:
bearcreekstables wrote: View Post
Being an old stereo buff I tried to explain that lower cost amps don't have the headroom to push the envelope for a number of reasons.

Jerry
The big bottleneck on lower end receivers is always the power supply if it is not big enough the amp simply wont be able to hit the dynamics at high db's causing distortion. There are several things to keep in mind: One the efficiency of the speakers, Two the Ohms that the speakers run at, And three the amps actual power rating is rarely what it says on the spec's.


Home theater: Onkyo TXSR805 receiver, Samson Servo 4120 bridged @240wattsX2, 2-Mission 765 Mains, 4-762i's Rears,
SVS PB13 Ultra, AR center PSC25, 2 Audio control C131 EQ's
Toshiba HD A2 & Samsung BDP1400 DVD players, Sanyo Z2 projector

Two Channel system: Yamaha RX-V995, Mission 764i's, & A/D/S MS3u sub
Yamaha KX-393 Tape deck, CDC 805 5 disc CD changer,
LG DV7832NXC DVD player, Motorola HD-PVR,
Sony KP-53HS30 rear projection HDTV, turntable PS-T20
Nintendo Wii


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