Originally posted by las3rjock
When it comes to time-varying signals (like audio), you have to match the impedances (ohms) between your components. It's not really an issue of whether or not your headphones or speakers are easier or harder to drive--if the impedances are mismatched, the signal from your amplifier will not drive your headphones (or speakers) efficiently. This means that pairing low-impedance headphones with a high-impedance amplifier will result in a lower sound pressure level than if you matched the impedances of your headphones to your amplifier. If you can't match the impedances exactly, getting them closer still improves the efficiency, which is probably what Sony is claiming about the V700s.
The correct rule to remember is that matched impedances are easier to drive than mismatched impedances.
Thats what i thought, fukin audio technology degree learning me all sorts of useless shite.
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Dec-02-2003 14:02
las3rjock
Senior tranceaddict
Registered: Aug 2003
Location: Ann Arbor, MI
BTW, the headphone jack impedance of Pioneer DJMs is about 25 ohms. The headphone jack impedance of my Behringer DJX-700 is something like 75 ohms. The headphone jack impedance for a Creative Labs SoundBlaster Audigy is 32 ohms. For the headphone jack impedance of anything else, look it up in the manual.
Power transfer falls off more rapidly if the load impedance is too low than if it's too high, so you're best off getting higher-impedance headphones like Pioneer or Sennheiser.
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Last edited by las3rjock on Dec-03-2003 at 22:20
Dec-03-2003 17:50
l0rd_tornado
tranceaddict in training
Registered: Nov 2003
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no, the Pioneer HDJ-1000's are 40 Ohms, and a headphones plug, wether the 1/8" mini or the bigger 1/4" have no bearing, nor relation on or to the impedance rating of a set of headphones.
Dec-03-2003 19:17
las3rjock
Senior tranceaddict
Registered: Aug 2003
Location: Ann Arbor, MI
I was a bit unclear in my previous post (I submitted it just before going to lecture) so I have edited it to eliminate the confusion.
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Dec-03-2003 21:35
Rememberence_
James Packer
Registered: Oct 2002
Location: HXTA #6
quote:
Originally posted by las3rjock
I was a bit unclear in my previous post (I submitted it just before going to lecture) so I have edited it to eliminate the confusion.
is that you in your avatar? Cos if it is, you're ugly.
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Dec-03-2003 23:10
auujay
The Supreme tranceaddict
Registered: Nov 2002
Location: Cleveland
quote:
Originally posted by Rememberence_
is that you in your avatar? Cos if it is, you're ugly.
damn....
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Originally posted by Rememberence_
is that you in your avatar? Cos if it is, you're ugly.
Why thank you!
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Dec-04-2003 02:01
`pr0digy
Supreme tranceaddict
Registered: Sep 2003
Location: Philadelphia
quote:
Originally posted by las3rjock
Why thank you!
Nono, really.
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Dec-04-2003 03:40
MERTON
Suspended User
Registered: Oct 2003
Location: wilmer, texas
oh! speaking of ohms improving sound quality. using am impedanzer with grado's is supposed make them sound better. meier audio sells and cheap mini jack sized one. they also have a 1/4 inch sized one from audiovalve... but that one is very expensive. there's a forum on headwize.com on how to build a cheap 1/4 inch sized one since they aren't sold.
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Dec-04-2003 16:47
Rememberence_
James Packer
Registered: Oct 2002
Location: HXTA #6
quote:
Originally posted by MERTON
oh! speaking of ohms improving sound quality. using am impedanzer with grado's is supposed make them sound better. meier audio sells and cheap mini jack sized one. they also have a 1/4 inch sized one from audiovalve... but that one is very expensive. there's a forum on headwize.com on how to build a cheap 1/4 inch sized one since they aren't sold.
but what does it do?
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Dec-04-2003 18:34
DjJade
Supreme tranceaddict
Registered: Oct 2002
Location: Nashville, TN
For low impedance headphones the additional use of the impedanzer is adviced. The impedanzer increases the effective load impedance seen by the amplifier.
The impedanzer also enables the RKV to drive high efficiency loudspeakers.
