An SDA question

oldhifiguy · 05-21-2002, 06:34 AM

I have been running an old pair of SDA-2s(which i really love) with a Carver m400t amp. I have recently dragged out an old pair of McIntosh mc250 amps and put in place of the Carver. I am running these as mono amps...one on either side. This works only without the crosstalk cable and you loose that nice soundstage of the SDAs. Is there a way to do this and keep the crosstalk? I am not a technical person so the simpler the better...

TroyD · 05-21-2002, 08:42 AM

I'm not an SDA guy but why would monoblocks make a difference?? IF the SDA interconnect cable is in place it shouldn't make a difference, should it??

Troy (of the Big Dumb Dions)

RuSsMaN · 05-21-2002, 10:33 AM

Non-common ground, or some such. Hoosier or max, jump in here......

-R

rskarvan · 05-21-2002, 10:35 AM

There is something called an A-1 interface transformer that you need to use with non-common ground amps. Polk can sell you one - or, if you go to the yahoo mikespolkpage website, there is a technical description/design that you could probably put together yourself.

hoosier21 · 05-21-2002, 10:57 AM

If you have the interconnect cable that has two blades, you are SOL.
If you have the interconnect with a pin and blade, you are in luck but you are in for some work.
1. You can look and look for an original Polk A1 interconnect cable (very rear to find one for sale)
2. you can make your own.
Making your own is easy, call Ken Swagger at Polk he can fax you the material list and directions (these are also at Mike's Polk SDA group at Yahoo)

dylan · 05-21-2002, 12:28 PM

I believe this is the link to Mike's SDA Page

oldhifiguy · 05-23-2002, 06:19 AM

Thanks for the info. I can see I have a little research to do!

05-21-2002, 06:34 AM	#1
oldhifiguy Polkie Member Sales Rating: (0) Join Date: Apr 2002 Posts: 2	An SDA question I have been running an old pair of SDA-2s(which i really love) with a Carver m400t amp. I have recently dragged out an old pair of McIntosh mc250 amps and put in place of the Carver. I am running these as mono amps...one on either side. This works only without the crosstalk cable and you loose that nice soundstage of the SDAs. Is there a way to do this and keep the crosstalk? I am not a technical person so the simpler the better...

05-21-2002, 08:42 AM	#2
TroyD Polk Guru Member Sales Rating: (3) Join Date: Jul 2001 Location: lookin' for fava beans and a nice chianti Posts: 11,209	I'm not an SDA guy but why would monoblocks make a difference?? IF the SDA interconnect cable is in place it shouldn't make a difference, should it?? Troy (of the Big Dumb Dions) __________________ That statement will probably offend someone. They need to know ahead of time that I don't give a sh*t. -G.B. Grand

05-21-2002, 10:57 AM	#5
hoosier21 Polk Expert Member Sales Rating: (17) Join Date: Jul 2001 Location: Georgia Posts: 3,914	If you have the interconnect cable that has two blades, you are SOL. If you have the interconnect with a pin and blade, you are in luck but you are in for some work. 1. You can look and look for an original Polk A1 interconnect cable (very rear to find one for sale) 2. you can make your own. Making your own is easy, call Ken Swagger at Polk he can fax you the material list and directions (these are also at Mike's Polk SDA group at Yahoo) __________________ Acurus RL11 - Preamp Aragon 8008ST - Power amp Sony DVP-NS999ES - SACD player ADS 1230 - Polk SDA 2B - Vandersteen 2Ci (8) 12" driver DIY - Subwoofer Crown K1 - Subwoofer amp Outlaw ICBM - crossover Beringher BFD - sub eq Where is the remote? Where is the $%#$% remote! "I've always been mad, I know I've been mad, like the most of us have...very hard to explain why you're mad, even if you're not mad..."

05-21-2002, 10:33 AM	#3
RuSsMaN Hardcore Member Sales Rating: (27) Join Date: Jul 2001 Location: North Texas Posts: 16,026	Non-common ground, or some such. Hoosier or max, jump in here...... -R

05-21-2002, 10:35 AM	#4
rskarvan Banned Member Sales Rating: (1) Join Date: Jul 2001 Posts: 2,454	There is something called an A-1 interface transformer that you need to use with non-common ground amps. Polk can sell you one - or, if you go to the yahoo mikespolkpage website, there is a technical description/design that you could probably put together yourself.

05-21-2002, 12:28 PM	#6
dylan Polkateer Member Sales Rating: (1) Join Date: Jul 2001 Location: Mountains of Idaho Posts: 453	I believe this is the link to Mike's SDA Page

05-23-2002, 06:19 AM	#7
oldhifiguy Polkie Member Sales Rating: (0) Join Date: Apr 2002 Posts: 2	Thanks for the info. I can see I have a little research to do!

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