Notices
Lexus Audio, Video, Security & Electronics
Sponsored by:

defective channel in multi-channel amp

Thread Tools
 
Search this Thread
 
Old May 9, 2007 | 09:40 PM
  #16  
olddog's Avatar
olddog
Thread Starter
Pole Position
iTrader: (2)
 
Joined: Sep 2005
Posts: 2,014
Likes: 1
From: ON, Canada
Default

anybody know where i can get an Alpine MRD-F752 amp from. it suits my need. and am guessing it won't be too expensive since is an old model
here are the specs
5 Channel class T Amplifier
RMS power Channels 1-4 at 12V, 20Hz ∼ 20kHz:
4 x 75W @ 4 ohms (0.08% THD)
4 x 100W @ 2 ohms (0.3% THD)
2 x 200W @ 4 ohms bridge (0.3% THD)
RMS power Channel 5 at 12V, 20Hz ∼ 20kHz:
1 x 250W @ 4 ohms (12V - 0.3% THD)
Freq. Response: 20Hz ∼ 20kHz (+0,-1dB)
S/N Ratio: 100dBA (at rated power)
Fuse: 80A
Dimensions: 17.9" x 10.2" x 2.4" (46cm x 26cm x 6cm)
Weight: 18.5 lb. (8.4 kg.)
Manufactured in 1999-2002
Reply
Old May 9, 2007 | 10:31 PM
  #17  
MJHSC400's Avatar
MJHSC400
Lexus Test Driver
 
Joined: Nov 2006
Posts: 1,306
Likes: 2
From: sc
Default

I recall that you were wanting to run 2 4ohm subs, in which case you'd need a different amp-- the sub channel on that alpine only does 4ohm loads--

The PPI is MUCH MUCH MUCH better-- Just to let you know-- I'd jump on it while you can-- you won't find that amp for sale often and especially not in mint condition--

$350 shipped is very fair for that level of quality equipment--

It might just last longer than your car--
Reply
Old May 10, 2007 | 07:51 AM
  #18  
olddog's Avatar
olddog
Thread Starter
Pole Position
iTrader: (2)
 
Joined: Sep 2005
Posts: 2,014
Likes: 1
From: ON, Canada
Default

i might be in luck.
i found a local shop carrying the PPI 6 ch. P650, asking 250 with 90 day warranty.
i will check it out this weekend.
Reply
Old May 10, 2007 | 03:45 PM
  #19  
MJHSC400's Avatar
MJHSC400
Lexus Test Driver
 
Joined: Nov 2006
Posts: 1,306
Likes: 2
From: sc
Default

This amp will not work with a 2ohm sub load!!!!!

The PCX 5800 is what you want !!! Twice the power for the sub channel-- and it will work at a 2ohm load--
Reply
Old May 10, 2007 | 03:48 PM
  #20  
MJHSC400's Avatar
MJHSC400
Lexus Test Driver
 
Joined: Nov 2006
Posts: 1,306
Likes: 2
From: sc
Default

$325 shipped is not a lot of money for this level of quality --

The seller has 710 transactions with 98.8% positive, accepts returns, and it qualifies for paypal buyer protection--
Reply
Old May 10, 2007 | 05:17 PM
  #21  
Percy's Avatar
Percy
Moderator - Electronics Forum
25 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Feb 2001
Posts: 3,985
Likes: 12
From: Illinois
Default

Not surprised that Alpine had a channel drop. I used to have a MRVF300 that had two out of the four channels DEAD out of the box. Upgraded to the MRVF400 on the spot and then later sold it to a buddy. Then upgraded to McIntosh. You can't get any higher than that for sound quality.

Percy
Reply
Old May 10, 2007 | 06:16 PM
  #22  
MJHSC400's Avatar
MJHSC400
Lexus Test Driver
 
Joined: Nov 2006
Posts: 1,306
Likes: 2
From: sc
Default

There may be a few that come close enough that it's inaudible--
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
almeshtaq
LS - 3rd Gen (2001-2006)
6
Apr 25, 2019 10:35 AM
rlp1949
SC430 - 2nd Gen (2001-2010)
12
Oct 4, 2014 04:52 PM
Farino81
SC - 1st Gen (1992-2000)
3
Dec 25, 2013 07:14 PM
TJW98LS
LS - 1st and 2nd Gen (1990-2000)
3
Jan 4, 2009 06:13 AM
kuzbayne
RX - 1st Gen (1999-2003)
1
Jul 28, 2006 11:38 AM




All times are GMT -7. The time now is 06:06 AM.