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What amplifier do you use with your Magnepan .7 or LRS

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Posted on November 21, 2021 at 18:58:14
nParbat
Audiophile

Posts: 7
Location: San Diego
Joined: January 14, 2002
Hello,
I am using a Vincent SP-331, Chord Hugo2 with my LRS's and am considering an amplifier/integrated upgrade. What are or have others used with the smaller maggies? Please stick to personal experience only.
Cheers

 

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I use PS Audio M700s with my LRSes, posted on November 21, 2021 at 19:14:47
Mike K
Audiophile

Posts: 13353
Location: 97701
Joined: September 23, 1999
Contributor
  Since:
May 7, 2000
and they work wonderfully well. I understand the M1200s are even better
but have not heard them.
Whether or not you can observe a thing depends upon the theory you use. It is the theory which decides what can be observed. - Albert Einstein

 

RE: I use PS Audio M700s with my LRSes, posted on November 21, 2021 at 21:32:11
Green Lantern
Audiophile

Posts: 16202
Location: San Diego, Ca
Joined: November 12, 2002
Contributor
  Since:
June 17, 2003
I use the same on my Apogee's, great amps!


 

RE: I use PS Audio M700s with my LRSes, posted on November 22, 2021 at 06:41:24
gadio4533
Audiophile

Posts: 363
Location: FL
Joined: May 28, 2007
The M700s work very well on my 1.6s

 

Odyssey Khartago, Sansui AU-999...., posted on November 22, 2021 at 09:26:59
Tromatic
Audiophile

Posts: 2715
Location: Portland
Joined: July 27, 2000
Love the Sansui the most.

 

RE: Odyssey Khartago, Sansui AU-999...., posted on November 22, 2021 at 16:17:41
VidPro
Audiophile

Posts: 33
Location: Boston
Joined: March 3, 2021
A Carver M500t.

 

RE: What amplifier do you use with your Magnepan .7 or LRS, posted on November 24, 2021 at 04:23:38
G Squared
Audiophile

Posts: 6764
Location: Washington, DC Metro Area
Joined: November 16, 2004
Cary CAD 200

Sweet top end plenty of drive
Gsquared

 

RE: What amplifier do you use with your Magnepan .7 or LRS, posted on November 24, 2021 at 16:33:05
MBerry6
Audiophile

Posts: 7
Location: KS
Joined: March 19, 2021
I currently have a Hegel H190 driving my LRS / dual REL setup.

 

RE: Just as a matter of interest ..., posted on November 25, 2021 at 02:44:37
andyr
Manufacturer

Posts: 12305
Location: Melbourne
Joined: September 2, 2000
Does the way you've set this up:
1. run the LRSs full-range?
2. or have you implemented a HP filter on the LRSs to match the roll-off of your RELs?

In my view, #2 is the optimal way to implement subs.

Andy

 

RE: Just as a matter of interest ..., posted on November 25, 2021 at 03:54:37
MBerry6
Audiophile

Posts: 7
Location: KS
Joined: March 19, 2021
I am currently running full range but would agree that a HP setup would be optimum. I am currently refining the Digital front end of my system but at some point I will explore the response curve in more detail.

I would be interested in recommendations on High Pass setups using LRS's with dual REL's.

 

VTA/Dynaco MK3 monos and dual REL subs on my LRS, posted on November 25, 2021 at 07:42:44
wgallupe
Audiophile

Posts: 604
Location: Central Massachusetts
Joined: November 7, 2002
The LRS are high passed at 100Hz/24dB using a Marchand XM46-AA passive line level crossover. Low pass to the REL T/7x LFE input is also at 100Hz/24dB.

Although the MK3 amps (rated at 60wpc) have plenty of power/current to drive the LRS full range beautifully, adding the XM46 did improve overall midrange clarity. I suppose this is mostly due to increased amplifier headroom. However, I also believe that, since the LRS bass/midrange/treble drivers share the same diphragm, removing low bass and reducing diaphragm motion from the LRS is also a contributor.

 

RE: Just as a matter of interest ..., posted on November 25, 2021 at 10:36:13
G Squared
Audiophile

Posts: 6764
Location: Washington, DC Metro Area
Joined: November 16, 2004
I followed Andy's advice with rewarding results.
Gsquared

 

RE: Just as a matter of interest ..., posted on November 25, 2021 at 13:05:53
andyr
Manufacturer

Posts: 12305
Location: Melbourne
Joined: September 2, 2000
Be aware you can't implement a HP filter on the LRSs if you use REL's "high-level" connections to the subs.

The only way it will work is by feeding the output from your preamp into a 2-way active XO and then feeding:
* the low pass output into the low-level inputs (RCAs) on your subs, and
* the high pass outputs into the amp driving the LRSs.

Using something like a miniDSP 2x4HD would allow you to play with different roll-off frequencies, to decide which delivered the best sound; I would suggest you start off at 24dB L-R @ 60Hz.

Andy

 

RE: Just as a matter of interest ..., posted on November 26, 2021 at 13:50:08
MBerry6
Audiophile

Posts: 7
Location: KS
Joined: March 19, 2021
Thanks for the recommendations and comments.

 

RE: What amplifier do you use with your Magnepan .7 or LRS, posted on November 26, 2021 at 17:53:52
mondial
Audiophile

Posts: 849
Location: S.E. ASIA
Joined: January 14, 2007
My sister uses an ARC REF 150 and VS 55 amp . Both are tube amps .

 

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