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RE: Very Happy New 1.6 Owner!

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In Reply to: RE: Very Happy New 1.6 Owner! posted by Joe Mags on February 13, 2010 at 19:56:49

Congrats. The 1.6's are great.

I would just listen to them stock. As you get used to them and they break in you may find yourself wishing for more or less of something, then start to tweak, not before.

I don't know what the "choke" tweak entails but beware of any mods that may void your warranty.

One thing you can experiment with is positioning them with the tweeters on the inside and then on the outside. One way will sound better to you and your room.

Follow Ups:

RE: Very Happy New 1.6 Owner! / a question - Hi-fi Nut 08:40:55 02/15/10 (1)
I understand you power your speakers with battery-power.

How is that working?

H.F.N.
- RE: Very Happy New 1.6 Owner! / a question - Joe Mags 18:33:34 02/15/10 (0)
  Sounds great for exactly one half of one cycle then silence ?!?!?!?!?!?
The choke tweak - esande 17:40:45 02/14/10 (8)
Doesn't void the warranty.
- Is the choke tweak the same for 3.6? - pete1 06:29:55 02/15/10 (4)
  I am also looking at the choke tweak for my 3.6, purchased used a few weeks ago. The picture suggests the choke shares the same terminals for the jumper, is that correct? In addition:
  1. Is the tweak intended for the tweeter?
  2. What type and value should I get?
  3. Which mfr?
  4. Does a choke have +/- polarity?
  5. Does RS carry them?
  - The choke tweak... - Al Sekela 15:46:12 02/15/10 (3)
    The chokes are 10 microhenry RF chokes made by J.W. Miller and available in small quantities from Mouser Electronics. The part numbers are 5502 and 5522. I used the 5522 because I found some in a local surplus electronics store and liked what they did. Other inmates have tried the 5502 and found they prefer it to the 5522. The 5522 is made from heavier wire and has a higher DC current rating, so it may affect the treble.
    
    Still other inmates have used two chokes in parallel (this gives 5 microhenrys net inductance), or a choke in parallel with a resistor of 1 to 2 ohms. It is possible to experiment cheaply and without damaging the speaker to dial in the treble to your taste. The chokes block RF noise without reducing the audio level. The cement resistors supplied by Magnepan have some inductance, so they do a little of both.
    
    The MG-3.6 and MG-20.X speakers have treble attenuator ports, and the chokes fit in place of the supplied jumpers. They can be added to the cables for use with the midrange and bass panels if desired, but the crossovers already have inductors between the amp(s) and midrange and bass elements. I would recommend trying them if you use an active biamp setup with no passive crossovers.
    
    I would not use a choke with a value larger than 10 microhenrys with the tweeter. This would attenuate the audio band treble.
    - ...they must ROCK when coupled with the Zobel tweak, IMHO - Mart 13:04:17 03/03/11 (0)
      (IE: DIY versions of �Walker-Audio: HD-Links�)
      
      ... just my 2� ♪ moderate Mart ♫
      ☺ Planar Asylum
      where speakers are thin & music isn't
    - RE: The choke tweak... - cfraser 15:41:17 04/07/10 (0)
      Doesn't the choke in parallel with a 1-2 ohm resistor totally defeat the point of the choke? The resistor always provides a low impedance path for the RF we got the choke for in the first place. I can see this combo is a frequency-dependent impedance that increases as frequency, and thus attenuates the higher audio frequencies a bit more...not bad in itself if that's what you want to do, but useless for RF blocking. Now, I could see a choke in series with a (choke || resistor) that would do both: block RF and give a nice slope to the high freq audio attenuation.
      BTW, I've had my 1.6s for ~10 years and have never done any of this stuff. I just got some 5522s and Caddocks recently (the stock 1.2 ohms Magnepan included were "too much" for me) so will be trying a few things soon. I was going to try 0.5 ohms possibly in series with 10uH, but 10uH || 1 ohm might be more suitable as RF isn't really a problem and I only want a tiny bit of HF attenuation.
      
      Edits: 04/07/10
    - RE: The choke tweak... - pete1 13:59:00 04/07/10 (0)
      Hey Al, I've placed an order for 4 5502s (in case I want to experiment to use 2/ch) and they should be here in several days. I recall some members also combine the choke with a 1.2 ohm resistor in parallel as well. I am curious if you have tried the choke-resistor configuration and what your opinion would be on that. Thanks, Peter.
- What if you biwire? nt - Emil 06:00:27 02/15/10 (1)
  nt
  - The choke needs to be inseries - Dawnrazor 23:06:46 02/15/10 (0)
    with the drivers so you would have to place them in the stock binding posts and connect the choke to your speaker cables:
    
    speaker cables-> choke-> + binding post.
    
    WHile you are at it, do the bass driver too.
- RE: The choke tweak - Joe Mags 18:47:19 02/14/10 (0)
  Thats great, thank you very much. I will order two of those from Mouser.
RE: Very Happy New 1.6 Owner! - Joe Mags 08:53:30 02/14/10 (0)
That is what I was thinking. I want to get a few months on em and I couldn't see doing anything internal until the warranty is up. From what I can find so far about the choke tweak, it just inserts where the stock bi-wire jumpers go so that is something I plan on trying as there is no risk. Right now when I turn em on I get that big S*** eatin grin on my face :-) Thanks

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RE: Very Happy New 1.6 Owner!

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