Do I need Amplifier for my Home Theater speakers?

I doubt it.

Forgot to add the receiver: Denon AVR-X3000 7.2

Definitive Technology are usually efficent, easy to drive speakers so you should be fine with a mid range av amplfier.



Quote:
Originally Posted by essorcy  /t/1519138/do-i-need-amplifier-for-my-home-theater-speakers#post_24391023


Forgot to add the receiver: Denon AVR-X3000 7.2

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Does the system not get loud enough for you?



Quote:
Originally Posted by essorcy  /t/1519138/do-i-need-amplifier-for-my-home-theater-speakers#post_24390957


Hey guys,


Need to know if I need to buy an amplifier for my speaker set up.

 

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What makes you think you need an amplifier? 



Quote:
Originally Posted by East Glenn  /t/1519138/do-i-need-amplifier-for-my-home-theater-speakers#post_24393193



What makes you think you need an amplifier? 

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People who write posts on AVS forum, undoubtedly.

Borrow a ATI 3008 and see if it sounds better. If it does then you know Denon struggles to drive them speakers.


Now if you had 4 ohm speakers and speakers around in mid 80's dB /1W I might so could do with amplifier, av amps struggle with 4ohm loads, but yours aren't.



Quote:
Originally Posted by arnyk  /t/1519138/do-i-need-amplifier-for-my-home-theater-speakers#post_24393163


Also, the SC-4000 is just a 8" sub with two passive radiators that help make the box a little smaller. If the space were available, the Hsu VTF 15 or competive product from people like SVS, Rhythmic, & etc. could make a big difference for about the same money.

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Thanks Arny, I missed the sub.

@essorcy , I would put all thoughts of external power amps on the back-burner until you have upgraded and optimised your sub. (Take a look at a Rythmik F15 or two.) Along with optimal speaker placement, this is where the biggest improvements can be made to the overall sound of your system. It still would be an interesting exercise though if you could supply the details requested above, so we can work out some power numbers.

Quote:
Originally Posted by fatbottom  /t/1519138/do-i-need-amplifier-for-my-home-theater-speakers#post_24393504


Borrow a ATI 3008 and see if it sounds better. If it does then you know Denon struggles to drive them speakers.


Now if you had 4 ohm speakers and speakers around in mid 80's dB /1W I might so could do with amplifier, av amps struggle with 4ohm loads, but yours aren't.

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... are listening at a slightly higher volume level; &/or

... have confirmed that you (like everybody else) are not immune to a number of human biases inherent in a sighted, casual "listening session". These include expectation, confirmation and experimental biases; &/or

... need to contact your dealer, because the Denon's internal amps are defective.

Denon output power on the Denon cannot be more than 85W per channel. That's with 100% no power loss, and DSP and other electronics uses no power.


Power Output (8 ohm, 20 Hz - 20 kHz, 0.08% 2ch Drive) 105 W - Fine in 2 channel. But only 2 channels driven, not 7.


say about 10-20W for all processing and 10% loss of electronics. About 80W per channel?

Are you suggesting the receiver won't meet it's two channel driven specs? It ought to get closer than you suggest, on account another wanting to PO the FTC. And without actual testing I would not want to suggest I know how it performs with 5 or 7 channels driven. But a wag would be 85 watts per channel at even 5 channels driven is optimistic. That would be a problem if a person ever needed even 85 watts in any single channel (highly dependent on speakers room listening position and actual max listening level). A person like me who never listens above -10 dB from reference is unlikely to. And of course you would have to find that nonexistent program material that calls for max power from all channels simultaneously. Otherwise it's a tempest in a teacup. A purely hypothetical concern that never has practical meaning.