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Discussion Starter · #1 ·
How is the headphone out on receivers? I ask because alot of people with headphones get an amp/dac combo for the best quality for hard to drive headphones. I have an onkyo 605 does this receiver have the guts to drive high impedence phones with decent quality? I'm looking to buy a high impedence phone but not too keen on spending a ton on an amp/dac.


I asked at head-fi and they seem to not have any knowledge whatsoever of the components of a receiver.
 

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I would think receiver makers would not bother putting much into their headphone amp. A basic op amp output.


I don't know much about headphone impedance. I thought 32 ohms was the usual impedance. Are you looking into something a lot higher, like 600 ohms?


I read somewhere, that 600 ohm headphones can be driven with a line level output. I think the idea is that you have enough voltage. But I that's just one person's opinion. And I would think you need to build a box that applies sufficient resistance to lower the output to a usable level.


Maybe you could try your friend's headphone outputs to see how well they work, or goto an electronics store that actually has gear hooked up (unlike Best Buy.)
 

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Quote:
Originally Posted by unclepauly /forum/post/16859809


I have an onkyo 605 does this receiver have the guts to drive high impedence phones with decent quality? I'm looking to buy a high impedence phone but not too keen on spending a ton on an amp/dac.

High impedance phones are, generall, easier to drive than low impedance ones.
 

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Don't they need high voltage, Kal? Can most headphone outs provide enough voltage?
 

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Originally Posted by MichaelJHuman /forum/post/16861684


Don't they need high voltage, Kal? Can most headphone outs provide enough voltage?

They do not need a higher voltage in my experience. Of course, low impedances generally demand higher current from the same voltage. OTOH, I ain't a real headphone guy.
 

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Neither am I, when it comes to home. At work I used an iPod and a Grado SR60.


I do feel headphone outputs can make a difference. I had a discman that really sounded great when kick drums would hit. None of my other players could duplicate those strong kick drum hits. I always wondered what caused that - slew rate related?


I really miss that discman with fondness, except that I played it way too loud
 

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Quote:
Originally Posted by unclepauly /forum/post/16859809


How is the headphone out on receivers? I ask because alot of people with headphones get an amp/dac combo for the best quality for hard to drive headphones. I have an onkyo 605 does this receiver have the guts to drive high impedence phones with decent quality? I'm looking to buy a high impedence phone but not too keen on spending a ton on an amp/dac.


I asked at head-fi and they seem to not have any knowledge whatsoever of the components of a receiver.

You need to find out the headphone out specs from Onkyo..

Many entry-level AVRs have significant difficulty driving high impedance headphones. In checking the Onkyo website no info is found for this spec..



So I would recommend that you take your high impedance headphone to an Onkyo dealer and try them out...


Just my $0.025...
 

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Discussion Starter · #8 ·
Maybe I should just give Onkyo a call? I don't have a high impedence phone right now but I do have an onkyo 605. The thing is I don't want to buy a headphone that needs alot of juice when I have no components with enough juice to drive it. There's a few I'm looking at that are from 250 ohm to 600 ohm, way higher than my current hp that is 32 ohm. A good headphone amp is anywhere from $150 - $400. I'd rather not spend that money if I don't have to.
 
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