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How to solve the power issue with Maggies

68.186.28.74

Posted on August 30, 2013 at 13:36:54
ejman
Audiophile

Posts: 403
Location: SW Oregon
Joined: October 3, 2006
OK so I finally found how to appropriately power my 1.7's...









 

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With horse-power? (1st photo) Kicks *ss - Ha! (nt), posted on August 30, 2013 at 15:12:32
QuadTodd
Audiophile

Posts: 600
Location: Midwest
Joined: October 22, 2004
nt

 

but how have you solved digititis? _ ‹nt›, posted on August 30, 2013 at 15:15:27
Mart
Bored Member

Posts: 31273
Location: upstate NY
Joined: June 6, 2001
Contributor
  Since:
June 25, 2000

... just my 2¢
moderate Mart

Planar Asylum

where speakers are thin & music isn't

 

RE: With horse-power? (1st photo) Kicks *ss - Ha! (nt), posted on August 30, 2013 at 16:10:58
ejman
Audiophile

Posts: 403
Location: SW Oregon
Joined: October 3, 2006
That horsey has to trot pretty hard! It's amazing how inefficient the Maggies really are. I originally hooked up the Lepai to a pair of ancient Original Large Advents I have in my spare bedroom and I was amazed at how nicely it played with them. Nice bass, good volume. The OLA's are 8 ohms but of fairly low efficiency being acoustic suspension designs. I've seen tests where the Lepai puts out fairly clean 5 watts at 8 ohms and 10 at 4 ohms so I thought I would see what happens with the 1.7's. Well, it does make sound but limpus maximus! And the power supply heats up pretty fast- Probably a long term test is not called for...

 

RE: but how have you solved digititis? _ ‹nt›, posted on August 30, 2013 at 16:23:45
ejman
Audiophile

Posts: 403
Location: SW Oregon
Joined: October 3, 2006
Well, it actually sounded pretty smooth in an elevatorish sort of way... Maybe the digits were laughing so hard they couldn't poke their heads thru?

 

RE: How to solve the power issue with Maggies, posted on August 30, 2013 at 17:14:18
IEaudiodude
Audiophile

Posts: 2814
Location: So Cal
Joined: February 11, 2010
Wow .... That is one impressive looking amp you have hooked up there, I'm suprised it didn't shrivel up like an old piece of fruit as the Maggies sucked the "life energy" out of it hehehe
Photobucket

 

RE: How to solve the power issue with Maggies, posted on August 30, 2013 at 19:57:20
pictureguy
Audiophile

Posts: 22597
Location: SoCal
Joined: October 19, 2008
If you had 1.6s it would be worthwhile trying to BiAmp with a pair of 'em.......

Now you're Cookin'!
Too much is never enough

 

"elevator-ish", posted on August 30, 2013 at 20:45:08
Mart
Bored Member

Posts: 31273
Location: upstate NY
Joined: June 6, 2001
Contributor
  Since:
June 25, 2000
hmmm... from the elusive variable switching frequency range I managed to google, I don't doubt it.   To equate it to waterlogged piped musak, I'm dubious.   I would expect something akin to a desiccated AM transistor radio.



... just my 2¢
moderate Mart

Planar Asylum

where speakers are thin & music isn't

 

RE: "elevator-ish", posted on August 30, 2013 at 21:26:41
ejman
Audiophile

Posts: 403
Location: SW Oregon
Joined: October 3, 2006
No, surprisingly it doesn't have the grainy tiny sound of an AM transistor radio at moderate levels. Instead a smooth not very dynamic sound (that's why I used the elevator term) -Until you turn it up hopping to get some dynamics and then it starts distorting as it clips.

 

hard-clipping w/ class-T amp @ 20W/ch(8ohm) operating on stable load limit, really? _ ‹nt›, posted on August 30, 2013 at 23:38:48
Mart
Bored Member

Posts: 31273
Location: upstate NY
Joined: June 6, 2001
Contributor
  Since:
June 25, 2000

... just my 2¢
moderate Mart

Planar Asylum

where speakers are thin & music isn't

 

RE: hard-clipping w/ class-T amp @ 20W/ch(8ohm) operating on stable load limit, really? _ ‹nt›, posted on August 31, 2013 at 05:42:11
Tom §.
Audiophile

Posts: 744
Location: Iowa
Joined: September 30, 1999

TA2020 distortion graph.

 

I've driven MG1.6s with 20wpc before, posted on August 31, 2013 at 08:23:57
Green Lantern
Audiophile

Posts: 16952
Location: San Diego, Ca
Joined: November 12, 2002
Contributor
  Since:
June 17, 2003
Back in '08 in my old house I used a Marantz 1040 integrated (20 wpc) a few times when I was in-between amps.
Similar to the one shown below.

Hey I don't care what anybody says; that thing produced the sweetest sounding music and-with good bass!

It never ran hot although it only ran for less than 30 min daily and the room was a tiny 10x8' (10' only because the closet doors were open lol).

I'm not saying this is a recommended match or if the amp is even rated for 4 ohm (which I'm doubting) but hey it cured my Maggie fix for that time being..

Marantz 1040-











 

RE: I've driven MG1.6s with 20wpc before, posted on August 31, 2013 at 16:06:48
pictureguy
Audiophile

Posts: 22597
Location: SoCal
Joined: October 19, 2008
My first amp for my new-to-me MG-1s was a Kenwood integrated....KA-7100 of about 80x2 at 4ohm. Worked fine.
Too much is never enough

 

RE: I've driven MG1.6s with 20wpc before, posted on August 31, 2013 at 16:59:04
ejman
Audiophile

Posts: 403
Location: SW Oregon
Joined: October 3, 2006
I fully understand. Although I'm currently using a fairly high power amp (Conrad Johnson MF 2300A) for many years I was perfectly happy with a Creek 4330 with my MMG's and MGI Imp before that. It was only after the folks at this site corrupted/infected my neurons that I started thinking maybe I din't have enough power on tap.

 

RE: I've driven MG1.6s with 20wpc before, posted on August 31, 2013 at 17:42:33
pictureguy
Audiophile

Posts: 22597
Location: SoCal
Joined: October 19, 2008
Make no mistake about it....within maybe 6 months I converted the Kenwood into a preamp and bought a Carver Cube of about 250x2@4ohms..... I too decided that more power was nice.
As it turns out, the match was reasonable and the amp and speakers ran pretty much neck and neck as to which ran out of capacity first.
Too much is never enough

 

RE: How to solve the power issue with Maggies, posted on September 1, 2013 at 03:09:01
Satie
Audiophile

Posts: 5426
Joined: July 6, 2002
The little Lepai amplett is a good visual representation of what my Tympanis sounded like driven by the Bryston 4B (NRB) I got for them.

 

RE: but how have you solved digititis? _ ‹nt›, posted on September 8, 2013 at 08:07:58
mashley
Audiophile

Posts: 355
Location: New Orleans
Joined: July 31, 2010
Mart, Don't laugh too hard, I have a Topping TP60 in my kitchen powering and old pair of B&W601's and it sounds really quite amazing.

And actually sounded reasonable with my 63's compared to my Audio Note monos. Admittedly it is one of the more powerful ones, however>

Check out lampizators surprise with one of these strange (filthy)little switching amps>
(very old post)

 

RE: I've driven MG1.6s with 20wpc before, posted on September 12, 2013 at 15:45:42
WhalePirot
Audiophile

Posts: 10
Location: SoCalif
Joined: August 2, 2003
Y'all speak as if there's a scientific basis for amp power ratings!

 

RE: I've driven MG1.6s with 20wpc before, posted on September 12, 2013 at 20:25:48
pictureguy
Audiophile

Posts: 22597
Location: SoCal
Joined: October 19, 2008
Simple measure of voltage while driving amp with a sine wave into a power resistor will yield a 'power' rating.
More eleaborate systems exist all the way to the 'power cube' which will measure the test amp at 8, 4 and 2 ohms at -+60 degrees phase angle. This corelates well with an amps ability to drive 'difficult' loads...not just low impedance.
So yes, there is a way to measure power output.
More problematic is the stuff you can't measure as well as the stuff you DO measure and if it matters.
Too much is never enough

 

RE: How to solve the power issue with Maggies, posted on September 16, 2013 at 17:59:30
IEaudiodude
Audiophile

Posts: 2814
Location: So Cal
Joined: February 11, 2010
I didn't know there was a power issue ......... News to me :^)
Photobucket

 

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