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In Reply to: RE: DWM Bass Panels & Sanders Magtech , (LONG) ... posted by finbad on March 30, 2017 at 19:24:17
Well that is because of the impedance matching issue he describes. He gives you a choice. I'll give you an example. I have a Cary slp98p which has about a 600 ohm impedance but that swings upward to 6k ohm at lower frequency. My amp has a 24k ohm impedance. I found lower frequencies better just running direct from my ps audio directstream to my amp. The directstream is 120 ohm flat across all frequencies. I would love to 'fix' this as I really like my Cary.
Follow Ups:
Yeah, timm .
I too enjoy running direct out of the Aurender A10 ( presents an organic tone ) a most focused image though less air and space between instruments vs the addition of the untube like sound of the LS17se (as near S.S. sounding as one can imagine , especially in its presentation of bass ) , but what it brings to the presentation is a wider larger soundstage affording more air and space between .
The A10 also matches well with placing most vocals further back so as to eliminate most outsized upfront vocals with all but the most deliberate upfront vocals - No doubt all of this is in part to the Magtechs peculiarities of presentation in total with these Maggies , in this particular room too.
Thanks for sharing your experiences.
I too have 3.7i and DWMS. The further out in the room that I bring out the mains, the more they need the DWMs. At 8 foot, the DWMs really help bring out the mid and upper bass. I just wished they rolled off faster in the midrange.
I have a wide selection of resistors and attenuators. In a smaller room the resistors are mandatory, in my larger room, not so much.
One other trick I have used to occasional success is to not aim the DWMs forward. This will help them roll off faster on the top. This is not how I am currently using them, but it has worked in some set ups. As an extreme, you can even have them run parallel to the SW. It all just depends...
The addition of the DWMs really seems to take a toll on my Pass amp -- the bias needles bounce like an earthquake with any volume. My alternative amp -- Emotiva XPA 1s rarely even get warm to the touch though.
Thank you so very much Cat with sharing your experience now and yours read elsewhere in my research .
Mr Diller sent along, at my request, two proper inductors and an assortment of standard Maggie resistors(the cost effective ones;) to get started , as you say, to roll off the mids as well as reduce the amplitude of the stronger than needed signal. Oh, at no cost to myself.
Again, I had settled on only needing to use one set of terminals and that was still a bit much due to this small room syndrome ; So, this is where I might like to further pick of your grey matter once the new panels arrive , please.
Latest Dealer inquired ETA email from Magnepan suggested 4 weeks in total, with two weeks left on that calendar.
Dealer tossed in the dress-up kit and upgraded silver material covering no cost. Of course, I can wait - I really can wait ( self talk ;)
Inquiring with Grant VanderMye on stand purchases , However my dealer was unsure, but he thought that the modification needed would void my warranty as he seemed to remember - So, I must get that issue settled with a call to Wendlle to be verified.
Speaker cables ?
Your thoughts or others opinions would be welcomed ;
Regards,
Will
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