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In Reply to: RE: 3.7i Parasound A-21 underpowered, need advise - posted by finbad on February 08, 2017 at 20:02:31
I used a Magtech and an Innersound Crossover / Amp to biamp Maggie 20.1 speakers. The music was so good. If you get a demo amp from Sanders Sound you will not return it. I sold the Maggies before moving to Florida (got Innersound EROS MK III electrostatic speakers to better handle heat and humidity) and sometimes I miss that effortless Maggie sound.
Follow Ups:
I see that I'm on the right track heavily leaning towards the Magtech -
I wished Magnapan would offer a bi-amp crossover option on the 3.7i ; Perhaps I should ask ?
Hmmm ...With 2ea DWM's putting my A-21 to use for the lower end...
You cannot biamp the 3.7 unless you rip out the crossover
Alan
Hey Alan,
No go then ; Surgery on these is something "I" would not do.
Good listening
-Bill
I too like to listen on the loud side, the problem is no matter how much I turn up the volume it never sounds loud, just better. I have progressed to the point of bi-amping my 20.1's with a Magtech and an ESL for the high-midrange. The main reason for bi-amping wasn't to get louder but to listen at the levels I like without cooking the speakers in the process.
Before bi-amping I would blow tweeter fuses like popcorn and the ocassional ribbon but rarely a midrange fuse. I did loose the midrange in my right speaker a couple years ago I had to send it back to Magnepan for repair. About 5 mos ago I lost the midrange in the Left speaker, finances have prevented me to get it repaired and to be honest there is not a big difference. I have since raised my crossover point on the LP from 135hz to 200hz so hopefully this will prevent future failures, since biamping I rarely blow tweeter fuses any more and have not blown a ribbon so I may be getting close.
As far as amps go I started with a McIntosh MC352, then I went to a pair of Bryston 7bst monoblocks. Neither came close to the Magtech as far as performance and that was even when I was using the single Magtec, do the 30 day demo I doubt you will send it back......
Hey Mac,
Very much on point, as I was looking at the Bryston 14B SST2 also.
Yep, Higher volume just translates to a fuller presentation to me, in this room .
So, I may first donate a very fine couch to someone in need from the back wall for the sonic improvement of less absorption to my enliven this 23' room, as Diller has suggested .
It is a very fine piece really, but such are the sacrifices we make in pursuit of the majick we seek :')
I feel now more confident with the imput here in this thread, in the decision there being a Magtech in my systems future, which I now lust to experience driving my 3.7i delivering the tubed LS-17se , Aurender A-10's Hi Rez recordings ;)
I appreciate your insight .
-Bill
I have a Magtech with ARC Ref5SE and think it sounds really good. However, I am considering the Merrill Veritas.
Ah yes,
the ARC LS-17se is said to have some trickle down R&D from the ARC Ref-5 .
It would seem your gears listening experience would be a fairly good comparison as to expectations here, should I trade out the A21 amp with the Magtech , re tone .
Helpful comparison as I contemplate an upgrade to my systems power amplification .
Thanx,
-Bill
I almost bought the A21 for my first amp for my 1.7i's but went with Odyssey instead. I've never heard the A21 but can say that the Magtech sounds very good with the 3.7i's. It's very neutral sounding.
Sorry to have missed your posts contribution to the thread, as I seem to not be receiving requested email notices on threads activity and of course my own mistake.
I too looked into the Amp you decided upon , a fine choice !
I really can't fault the A-21 as both the myself and the 3.7is are demanding of it, only perhaps more so than its capacity to deliver .
While awaiting delivery of the 3.7i new replacements I am presently enjoying this system with the A21 driving my theatres (7.1 reference series ) Klipsch floorstander 2ea 6.5 & Tractrix Horn tweeter (1800 crossover) 8 ohm 97db -
With outstanding results enough so as to be remarkable and entertaining with wider than the walls soundstaging with height & depth with great contrasting dynamic details on display - Settles (for me) the age old debate of which is most important transducer or source component chain . Quite the beautiful presentation really with these $300. ea closeout floorstanders .
What I have experimented with to very positive effect is direct wall plug in Rather than the Furman Power Conditioner . Much improved dynamics just an effortless flow . I now really want to try "direct wall plug in" with the system as constituted , when the 3.7is return .
I signed on to whole home surge protection with the insurance policy it affords for gear or else I would not have ever tried direct wall plug in especially here in Florida - In the summer rainy season passing quick hit hellacious lightning storms are frequent !
However, the benefit I'm experiencing with "Direct" is easily worth the risk - though I plan to easily unplug the system during forecasted days of frequent lightning storms here .
The point is, I now highly encourage "Direct Wall Plug In" of high current amplifiers - Old timers do so presupposed , I'm sure of it ;')
- Good Listening
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