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    When to Add External Amplification to an A/V Receiver

    Sure, distortion is important and with less stress on the power supplies at a given power output, you can attain lower distortion. What I do not, IME, believe factors into amplifier performance is the look and colour of the chassis, the brand, or the price. Price often has no direct correlation...
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    When to Add External Amplification to an A/V Receiver

    If not even an $11k Pass Labs can drive your speakers properly then isn't that a testament to poor loudspeaker engineering? Plenty of speakers do not need $11k of amplification to be driven well. Well, unless you feel price and performance is a linear function, but I don't agree with that...
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    When to Add External Amplification to an A/V Receiver

    Music is a more complex signal compared to a pure tone, but pure tones have a crest factor of 3 dB, while music can have a crest factor of between 9-12 dB on the average, up to 20 dB. This vastly reduces the average drain on power supplies and the heating of the power transistors and heat sinks...
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    Site Reputation

    I lost 300+ reputation points for posting in the 'power amp' thread in the amplifier forum. There was nothing technically wrong with my statements, but I got a poor rating. Perhaps it was gene. :(
  5. G

    Power amp

    Sure, receivers may supply less power over a wide bandwidth, but there is no good reason to think it is a real world problem for most people, at typical listening levels. If people want to use worst case scenarios, then fine, don't use an AVR. Get the biggest and baddest power amp you can...
  6. G

    Power amp

    You could use an arc-welder and you still wouldn't blow anything up. If the rated power is supplied to the load, then you'll have problems, assuming the load can't handle the thermal demands. Assuming 2000 watts, the Revels will be toast long before you reach anywhere close to that number...
  7. G

    Power amp

    Loud powerful music? How loud is 'loud'? If you have access to an SPL meter you can determine how loud the average/peak readings are in your room, with the music you listen to. For all I know 'loud' is 95 dB, as it's very loud for my tastes! I can't listen to music for more than a few seconds at...
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    When to Add External Amplification to an A/V Receiver

    Gene, I watched your video, but you appear to be misrepresenting the objectivist position. No one claims that all amplifiers sound the same when driven within their linear limits. That is a straw man argument and a false claim. What evidence shows is that amplifiers working within their linear...
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    When to Add External Amplification to an A/V Receiver

    I don't have a website or a database of info. I'm just questioning your claims. It's becoming increasingly clear that you don't like being questioned. Frankly I think you're arrogant and clearly feel self-enlightened. After all, this is your forum, so continue to use that defense in your...
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    When to Add External Amplification to an A/V Receiver

    Goodness gene! That's what a sighted test is! We aren't talking about literal blind ... as in putting on a blind fold. The entire point is not knowing which amp is being compared - the knowledge of knowing or not knowing is what differentiates between sighted or blind. If sighted, you are fully...
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    When to Add External Amplification to an A/V Receiver

    Amplifiers current limiting at low levels? Well it stands to reason current would be low at low levels. Not a problem if you're driving a load within the limits that the amplifier can provide. If an amplifier output impedance is high, the resultant frequency response when driving a complex...
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    When to Add External Amplification to an A/V Receiver

    Then its clearly not sighted. If it was sighted, you would know which amp was playing at all times. You don't know what my experience is, nor do you know what I've tested or not tested. You are just making assumptions here. Gene, the minute you said that power amps could drive speakers...
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    When to Add External Amplification to an A/V Receiver

    I have made no such assumptions. No where in my post did I claim that music was steady state nor have I claimed that speakers are simple resistors. What's going on here, Gene? You really need to resort to straw man arguments? No one is even talking about blind tests! Why bring it up??? We...
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    When to Add External Amplification to an A/V Receiver

    As far as I'm concerned the above is mystery meat. If you are basing your comments above on sighted evaluations then we've already hit a concrete wall. There is nothing more to discuss.
  15. G

    When to Add External Amplification to an A/V Receiver

    Sure, and your atypical condition requires a power amp over your receiver, correct? Based on what reliable analysis?
  16. G

    When to Add External Amplification to an A/V Receiver

    What exactly do you disagree with? The physical laws of the universe??? Here are a few statements : "If the voltage and the load impedance do not require the additional power that a larger amplifier can supply then adding a dedicated power amp cannot improve the sound." What do you...
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    When to Add External Amplification to an A/V Receiver

    Fair enough. It's just that many people seem to think that a power amp can improve the sound regardless of the conditions. If you listen at very high SPL (over 100 dB) sit far away from the speakers in a large room, with insensitive speakers that have a complex impedance curve, then sure, your...
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    When to Add External Amplification to an A/V Receiver

    If the voltage and the load impedance do not require the additional power that a larger amplifier can supply then adding a dedicated power amp cannot improve the sound. The load simply will not 'see' it. The amp can't supply more power than the load demands at a given voltage. Ohms Law forbids...
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    When to Add External Amplification to an A/V Receiver

    In my opinion, amplifier power is one of the biggest red herrings in all of audio. It just isn't a big issue in most typical conditions, at reasonable seated distances and listening levels. Most typical people probably don't even exceed 50 watts in extreme conditions with typical speakers...
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    Enclosed cabinet and cooling options

    A question. If the main vent is on the top of the receiver and the fan is blowing downwards directly above the amp, wouldn't I just be recirculating the hot air somewhat? Just another design I had a look at which is probably safer on the equipment : With my cabinet design I'll have at least...
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