Head-Fi: Covering Headphones, Earphones and Portable Audio  

Support Head-Fi by starting your Amazon.com shopping by clicking here

Follow headfi on Twitter!

Follow Rocky Mountain Audiofest (RMAF) on Twitter!

Head-Fi Is Sponsored By:

Featured

Head-Fi's Sponsors
(Premier Sponsors bolded)

Featured

Can Jam '09
(2009 International
Head-Fi Meet)
Impressions,
Reviews, Photos


Can Jam '09 graphic
courtesy of Edwood

Click on the links below
for Can Jam '09 photos,
impressions and reviews:

blubliss 1, 2, 3
dallan 1, 2, 3, 4
santacore 1, 2
nhat_thanh 1, 2
vpivinylspinner 1, 2, 3
amb 1
augustwest 1
eaglejo 1

johnsonad 1
shellylh 1
Jon L 1, 2, 3, 4
Germancub 1
zippy2001 1
IPodPJ 1
bhd812 1
Edwood 1, 2
abellaw 1, 2
minidiscs 1

atothex 1
HighLife 1
achristilaw 1
SiBurning 1, 2, 3, 4
SiBurning 5, 6, 7
LFF 1
Iron_Dreamer 1
doping panda 1
morphsci 1
ironbut 1
shaizada 1
jasper994 1, 2
jp11801 1
Uncle Erik 1
drubrew 1



(More impressions/photos
still being added.)

 


 

Head-Fi Blogs
and Facebook

Check out Head-Fi's new
Blogs section.

Featured Head-Fi Blogs:


Jude's "Take My Word"

 From Japan - by Sasaki

Currawong's Blog

(
Start your own Blog!)

Attention
Facebook Users



Join the official
Head-Fi.org
Facebook Group


Featured

Head-Fi's Sponsors
(Premier Sponsors bolded)

Featured

  #1 (permalink)  
Old 02-27-2008, 10:25 PM
antonyfirst's Avatar
Headphoneus Supremus
 
Join Date: Dec 2006
Location: Milano - Italy
Posts: 3,414
Send a message via MSN to antonyfirst
Default iMod w/ volume attenuator?

Yes or no question: can I use an IEM with volume attenuator out of blackgates imod, or will it fry the signal path?

Thanks.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Reddit!Facebook it!
Reply With Quote
  #2 (permalink)  
Old 02-27-2008, 10:56 PM
stevenkelby's Avatar
Headphoneus Supremus
 
Join Date: Jul 2006
Location: Adelaide, Australia
Posts: 2,287
Default

Yes you can but it won't sound good due to the huge impedance mismatch. Will get rolled off bass. Won't hurt anything though.
__________________
If you'd like to contact me, send me an email :)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Reddit!Facebook it!
Reply With Quote
  #3 (permalink)  
Old 02-28-2008, 12:59 PM
antonyfirst's Avatar
Headphoneus Supremus
 
Join Date: Dec 2006
Location: Milano - Italy
Posts: 3,414
Send a message via MSN to antonyfirst
Default

Thanks steve. Will it be a player-impedance mismatch, or a mismatch involving only the headphones? Hope the question is understandable.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Reddit!Facebook it!
Reply With Quote
  #4 (permalink)  
Old 02-28-2008, 01:19 PM
stevenkelby's Avatar
Headphoneus Supremus
 
Join Date: Jul 2006
Location: Adelaide, Australia
Posts: 2,287
Default

No worries man. I looked into it ages ago and can't remember now! It depends on the output impedance of the imod (which I can't remember) and the input impedance of your cans. The difference depends on where the high pass filter will be, and I can't remember the math either but it will be audible, maybe 100, 200Hz or something.

No headphones will present an appropriate load to the imod output, the imod wants the input to an amp, which is very high impedance.

Probably...
__________________
If you'd like to contact me, send me an email :)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Reddit!Facebook it!
Reply With Quote
  #5 (permalink)  
Old 02-28-2008, 06:48 PM
antonyfirst's Avatar
Headphoneus Supremus
 
Join Date: Dec 2006
Location: Milano - Italy
Posts: 3,414
Send a message via MSN to antonyfirst
Default

Probably?

Thanks man!
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Reddit!Facebook it!
Reply With Quote
  #6 (permalink)  
Old 02-29-2008, 12:09 AM
stevenkelby's Avatar
Headphoneus Supremus
 
Join Date: Jul 2006
Location: Adelaide, Australia
Posts: 2,287
Default

No worries, hope it helped. Vinnie explained it all to me early last year. Wish I could remember the facts but never think about it.
__________________
If you'd like to contact me, send me an email :)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Reddit!Facebook it!
Reply With Quote
  #7 (permalink)  
Old 02-29-2008, 12:15 AM
antonyfirst's Avatar
Headphoneus Supremus
 
Join Date: Dec 2006
Location: Milano - Italy
Posts: 3,414
Send a message via MSN to antonyfirst
Default

It helps a lot. Do you think you could find any write-ups about the right impedance load? It would come in handy even more.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Reddit!Facebook it!
Reply With Quote
  #8 (permalink)  
Old 03-01-2008, 01:20 PM
stevenkelby's Avatar
Headphoneus Supremus
 
Join Date: Jul 2006
Location: Adelaide, Australia
Posts: 2,287
Default

Sorry I don't really know where to look now and honestly don't have spare time at the moment. You should start a thread asking specific questions about impedance matching, output impedance of an imod or something. There are people here that are much smarter than me!

Maybe Google and searching here would turn up something?
__________________
If you'd like to contact me, send me an email :)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Reddit!Facebook it!
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT. The time now is 06:20 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2
Head-Fi.org