Implementing a third sub...new Funk Audio Rack amp pics... - Page 2 - AVS Forum
Forum Jump: 
Reply
 
Thread Tools
post #31 of 36 Old 01-12-2013, 02:15 PM - Thread Starter
pbc
AVS Special Member
 
pbc's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Posts: 5,348
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 30
Question about flattening the frequency response with REW. I'm using the "Right Channel" for all my measurements, and my two DIY Subs are each under their respective left and right bookshelves.

Always had a nagging question about trying to use REW for the FR this way. I.e., is it correct to try and match the frequency response to either a left or a right speaker, especially when you have a sub under each? I.e., wouldn't there be some inherent delay to the sub on the left side if in fact the right channel is used by REW to measure?

I'm kind of wondering if that is why I need an extra 3 feet of delay to my left sub compared to my right sub? Unless I missed it, REW appears to only let you run the sweeps on the right or the left front channel, not both.

 

My DIY Subs ... http://www.avsforum.com/avs-vb/showthread.php?t=1233892

Quote:

J Dunlavy:.. if you stop to think about it, no loudspeaker can sound more accurate than it measures.

 

pbc is offline  
Sponsored Links
Advertisement
 
post #32 of 36 Old 01-12-2013, 02:19 PM - Thread Starter
pbc
AVS Special Member
 
pbc's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Posts: 5,348
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 30
E.g., here is the difference in the response when I measure using the left channel vs when I measure using the right channel... (x-over at 120Hz, Audyssey is not being used)


 

My DIY Subs ... http://www.avsforum.com/avs-vb/showthread.php?t=1233892

Quote:

J Dunlavy:.. if you stop to think about it, no loudspeaker can sound more accurate than it measures.

 

pbc is offline  
post #33 of 36 Old 01-14-2013, 05:35 PM
Senior Member
 
Funky Waves's Avatar
 
Join Date: Dec 2007
Location: Halfmoon Bay BC, Canada
Posts: 333
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 29
Quote:
Originally Posted by N8DOGG View Post

I've been looking into that Funk Audio amp and was quoted $2200 plus $30 shipping. I didn't realize it didn't have a 12v trigger or a power switch. For $2200, I'd expect a power switch... but thats just me lol

They now have a circuit breaker power switch, in addition to the auto signal sensing on/off that works very well(and can be user configured to work best for you).

PS; All the componants we use are UL/CSA approved.

Nathan Funk
Funk Audio
Funky Waves is online now  
post #34 of 36 Old 01-15-2013, 06:32 PM
AVS Special Member
 
DS-21's Avatar
 
Join Date: Jun 2005
Posts: 3,395
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 87 Post(s)
Liked: 171
Quote:
Originally Posted by Funky Waves View Post


PS; All the componants we use are UL/CSA approved.

Good to know!

--
"In many cases there aren’t two sides unless one side is 'reality' and the other is 'nonsense.'" - Phil Plait
Serious Audio Blog 
Multichannel music (and video) urban loft living room system 
DS-21 is offline  
post #35 of 36 Old 01-15-2013, 08:18 PM
AVS Special Member
 
N8DOGG's Avatar
 
Join Date: Dec 2003
Location: Canada
Posts: 5,696
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 119 Post(s)
Liked: 285
Quote:
Originally Posted by Funky Waves View Post

They now have a circuit breaker power switch, in addition to the auto signal sensing on/off that works very well(and can be user configured to work best for you).

PS; All the componants we use are UL/CSA approved.

Humm, well that put this baby back in the mix for sure! decisions decisions cool.gif

Blasting brown notes for 10 years and counting!

N8DOGG is offline  
post #36 of 36 Old 01-22-2013, 07:24 PM
Member
 
SpeakerPower's Avatar
 
Join Date: Jan 2013
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 26
Quote:
PS; All the componants we use are UL/CSA approved.

You should also know that using UL/CSA approved components does not make the complete amp UL/CSA listed. It is Listing that affirms the safety protection of the final product. This is not an easy or cheap proposition. The amp must be submitted for safety testing and thousands of dollars paid. I know because I am in the middle of it on my sub amps, including my new rack mount amps.

Brian Oppegaard
SpeakerPower Inc.
SpeakerPower is offline  
Reply DIY Speakers and Subs

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

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