SDA SRS 3.1TL - driver phase?
Comments
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This might be a dumb question but is it possible that these two speakers weren't originally a pair that were sold together? Perhaps the seller picked them up separately and sold them as a pair. I sometimes see one speaker for sale on Craig's list.
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The date on my crossovers is 04/03/90 and are the "-A" version
The passives are "122", "-A" versions from 03/19/90
My serial numbers are 1016 and 1096. -
The date on my crossovers is 04/03/90 and are the "-A" version
The passives are "122", "-A" versions from 03/19/90
My serial numbers are 1016 and 1096.
The date on the 18Mh inductors are both 03/90 and the part numbers are both BE0032-A
So, my best guess is I DO NEED the 2 ohm, 25 watt resistors right?
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The date on my crossovers is 04/03/90 and are the "-A" version
The passives are "122", "-A" versions from 03/19/90
My serial numbers are 1016 and 1096.
The date on the 18Mh inductors are both 03/90 and the part numbers are both BE0032-A
So, my best guess is I DO NEED the 2 ohm, 25 watt resistors right?
And if so, I can, and likely will need to, use two 4 ohm 12 watt resisters in parallel?
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The date on my crossovers is 04/03/90 and are the "-A" version
The passives are "122", "-A" versions from 03/19/90
My serial numbers are 1016 and 1096.
The date on the 18Mh inductors are both 03/90 and the part numbers are both BE0032-A
So, my best guess is I DO NEED the 2 ohm, 25 watt resistors right?
And if so, I can, and likely will need to, use two 4 ohm 12 watt resisters in parallel?
I'd err on the side of caution, and use three Mills 6 ohm MRA-12s.
Those Resistors can get very hot. I would not bundle them tightly together, rather leave some air-space between them to keep them cool.Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
Here is a crossover from a 3.1TL with a manufacture date of 1992. I burned this up with a Hafler DH500. It smoked my tweeters. I replaced them with new production Polks, but the speakers now sound muddy and muffled. When I looked at the board I found a burnt choke coil. Is that what they are called? The zip tie is melted off. Could this be my only problem, or could there be more? What is the part number for that coil, and where may I find them?
Thanks!
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I see metal screws holding down the crossover. What type of spacers are underneath?
Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
No spacers that I am aware of. It just rests on the plastic spool the wire is wound on.
I'm sorry for posting this in more than one location. I was just fishing for info. Some of the guys gave me some good insight on another thread. Thanks!
http://forum.polkaudio.com/discussion/169474/polk-sda-srs-3-1tl-burnt-choke-coil-on-crossover-board#latestPost edited by Nibs on
