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Hello :)

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helicopterpilotdoug

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SILVER-7t

Posts: 1861

Joined: Sun Mar 21, 2010 8:04 pm

Location: Austin TX

Post Sat Jul 16, 2011 6:26 am

Re: Hello :)

ekog wrote:
helicopterpilotdoug wrote:\:D/ WELCOME!! \:D/
Which Polk Audio speakers do you have?
If you still have them, they could be fixed. Polk still sells replacement drivers.
You may already be a Club Polk member, but in case you are not, here is the address.
http://www.polkaudio.com/forums/index.php
Lots of good info there about rebuilding crossovers etc.
IMHO Carver and Polk are a match made in heaven!



I have some SDA2's - Thanks for the info ill fix them for sure because they sound great with Carver

They sure do. There are 3 models of SDA2 speakers, and They are sweet speakers. They really are worth the time and $ to rebuild.
I have a set of SDA 2A's and a set of SDA 2B's. Many say the 2B's are some of the best speakers ever made by Polk.
You mentioned they were dropped, and I'd imagine the magnets shifted. This is a common problem with the older MW drivers.
Polk Audio sells new ones, which can be ordered by phone. Be sure to mention you are a Club Polk member so you get the discount!
Best of luck with this.
Sunfire: Theater Grand IV, Cinema Grand Signature.
Carver: TFM-45, PST-24 Cassette, Extra Carver Gear: CT-6, C-11 (S/N 00001).
Polk Audio: Mains SRS 2.1TL, Center CSiA6, Surrounds FXiA6 and FXiA4, Sub DSW MicroPro 1000, Extra Speakers SDA 2A, SDA 2Btl, Monitor 10A.
Turntable: Dual CS 714Q
Bluray/SACD: Oppo BDP 83SE
CD: Sony 330 300 Disk changer

http://www.douglasconnection.com
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EndersShadow

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TFM-45

Posts: 633

Joined: Thu Jun 30, 2011 3:58 pm

Location: Indiana

Post Sat Jul 16, 2011 9:17 am

Re: Hello :)

Welcome!
"You were on my Ignore List, but you are too damn entertaining, like a circus monkey, so I took you off" - H9
"We shouldn't laugh at people like you, we should pray for them. You have my prayers for a speedy rehabilitation you sad, silly little man" - Jstas
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ekog

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TFM-6cb

Posts: 254

Joined: Sun Apr 24, 2011 12:50 am

Location: Northern Virginia

Post Sat Jul 16, 2011 10:50 pm

Re: We're not done with the welcomes yet...

treitz3 wrote:Welcome to the Carver forum. It seems you live in my old stomping grounds. Springfield, VA to be exact.


I drive through there everyday on my way to work (I was wondering whos foot prints those were) 8)
Main System Setup:
Pre: Carver C2 | Amp: Carver M-500t|Equilizer: Sansui SE99|Speakers: Polk SDA2’s
Source: Tuner: Carver TX-2| Phono: Technics SL-1210 MkII with a Ortofon VMS 20E Mk II| DirecTV DVR | Pioneer HLD-X9 Laserdisc player | Samsung DVD/VHS player

Second System Setup:
Receiver: Yamaha RXV867| Fronts: Klipsch F-30's |Sub: Klipsch SW-112
Source: Radio |Internet/Network | Sony CDP-70 CD player
<<

ekog

User avatar

TFM-6cb

Posts: 254

Joined: Sun Apr 24, 2011 12:50 am

Location: Northern Virginia

Post Sat Jul 16, 2011 11:58 pm

Re: Hello :)

helicopterpilotdoug wrote:
ekog wrote:
helicopterpilotdoug wrote:\:D/ WELCOME!! \:D/
Which Polk Audio speakers do you have?
If you still have them, they could be fixed. Polk still sells replacement drivers.
You may already be a Club Polk member, but in case you are not, here is the address.
http://www.polkaudio.com/forums/index.php
Lots of good info there about rebuilding crossovers etc.
IMHO Carver and Polk are a match made in heaven!



I have some SDA2's - Thanks for the info ill fix them for sure because they sound great with Carver

They sure do. There are 3 models of SDA2 speakers, and They are sweet speakers. They really are worth the time and $ to rebuild.
I have a set of SDA 2A's and a set of SDA 2B's. Many say the 2B's are some of the best speakers ever made by Polk.
You mentioned they were dropped, and I'd imagine the magnets shifted. This is a common problem with the older MW drivers.
Polk Audio sells new ones, which can be ordered by phone. Be sure to mention you are a Club Polk member so you get the discount!
Best of luck with this.


I have the original SDA2's (3 midrange, 2 tweeters, 1 passive radiator per side) before I bought them I compared them to the all the Polk Speakers they had such as the Monitor 10's and the SDA1C (could be wrong on this one) as well as Klipsch, Bose, JBL, Cerwin-Vega as well as a host of Speakers from various Japanese base manufactures such as Sony, JVC, and Pioneer. With every Amp and source in the store carried (they actually had it set up to switch on the fly between the various amps, sources and speakers which made it easy to compare (it still took me over 2 months if visiting the store everyday to make up my mind) but Carver and Polk just worked so well together I ended up buying them.
Main System Setup:
Pre: Carver C2 | Amp: Carver M-500t|Equilizer: Sansui SE99|Speakers: Polk SDA2’s
Source: Tuner: Carver TX-2| Phono: Technics SL-1210 MkII with a Ortofon VMS 20E Mk II| DirecTV DVR | Pioneer HLD-X9 Laserdisc player | Samsung DVD/VHS player

Second System Setup:
Receiver: Yamaha RXV867| Fronts: Klipsch F-30's |Sub: Klipsch SW-112
Source: Radio |Internet/Network | Sony CDP-70 CD player
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Mr. M-500t

(pair of) SILVER-7 TUBE AMPs

Posts: 6211

Joined: Fri Mar 17, 2006 10:00 pm

Post Sun Jul 17, 2011 8:39 am

Re: Hello :)

Howdy.
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Snoop65

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SILVER-7t

Posts: 1974

Joined: Mon Jun 28, 2010 9:04 pm

Location: A galaxy far far away

Post Sun Jul 17, 2011 7:37 pm

Re: Hello :)

Welcome!!! nice to have you
CARVER LIGHTSTAR REFERENCE+SUNFIRE CLASSIC TUBE PREAMPLIFIER+JBL XPL200+MUSIC HALL MMF-9.1+GRADO REFERENCE MASTER 1+CARVER SD/A 390t=WOW!!!!!!
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Chauss

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(pair of) SILVER-7t's

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Joined: Tue Mar 22, 2011 4:35 pm

Location: In my own little world.....

Post Sun Jul 17, 2011 7:45 pm

Re: Hello :)

Welcome! I have a set of the Polk SDA-2's also- one of Polks best all time...behind the SDA SRS!
Image
Good sound—like good music, good wine and good fellowship—is meant to be shared.
"The difference between genius and stupidity is that genius has its limits" Albert Einstein
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Mr. M-500t

(pair of) SILVER-7 TUBE AMPs

Posts: 6211

Joined: Fri Mar 17, 2006 10:00 pm

Post Sun Jul 17, 2011 11:04 pm

Re: Hello :)

So, can the SDA's be driven effectively with a Carver amp ? I've read hear several times that our amps are not common grounded and the SDA's must be ran that way to get their full effect ! WTH ? I've past up alot of SDA's out here on the left coast because of this ! I want to know for real. Jesse, Please Help.
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ekog

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TFM-6cb

Posts: 254

Joined: Sun Apr 24, 2011 12:50 am

Location: Northern Virginia

Post Mon Jul 18, 2011 4:19 am

Re: Hello :)

Mr. M-500t wrote:So, can the SDA's be driven effectively with a Carver amp ? I've read hear several times that our amps are not common grounded and the SDA's must be ran that way to get their full effect ! WTH ? I've past up alot of SDA's out here on the left coast because of this ! I want to know for real. Jesse, Please Help.



I've never had any issues driving the Polk SDA-2's with my M500t in fact I’ve driven them with a small 20w amp if I remember correctly (its late in the day for me sorry) they hook up to an amp normally but I think you can Bi-wire them (I’ll have to hunt down the manual for them and see for sure) but the carver can handle that as well the most important/unusual thing when dealing with the SDA’s is the interconnect cable (a cable that connects the 2 speakers directly together not to the Amp) but even if you don’t hook up the interconnect they are good well balanced speakers they just won’t give you the great stereo imaging that you would get with the SDA active. I’ll go home and edit this post once I verify the information.
Main System Setup:
Pre: Carver C2 | Amp: Carver M-500t|Equilizer: Sansui SE99|Speakers: Polk SDA2’s
Source: Tuner: Carver TX-2| Phono: Technics SL-1210 MkII with a Ortofon VMS 20E Mk II| DirecTV DVR | Pioneer HLD-X9 Laserdisc player | Samsung DVD/VHS player

Second System Setup:
Receiver: Yamaha RXV867| Fronts: Klipsch F-30's |Sub: Klipsch SW-112
Source: Radio |Internet/Network | Sony CDP-70 CD player
<<

Chauss

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(pair of) SILVER-7t's

Posts: 2296

Joined: Tue Mar 22, 2011 4:35 pm

Location: In my own little world.....

Post Mon Jul 18, 2011 7:11 am

Re: Hello :)

ekog wrote:
Mr. M-500t wrote:So, can the SDA's be driven effectively with a Carver amp ? I've read hear several times that our amps are not common grounded and the SDA's must be ran that way to get their full effect ! WTH ? I've past up alot of SDA's out here on the left coast because of this ! I want to know for real. Jesse, Please Help.



I've never had any issues driving the Polk SDA-2's with my M500t in fact I’ve driven them with a small 20w amp if I remember correctly (its late in the day for me sorry) they hook up to an amp normally but I think you can Bi-wire them (I’ll have to hunt down the manual for them and see for sure) but the carver can handle that as well the most important/unusual thing when dealing with the SDA’s is the interconnect cable (a cable that connects the 2 speakers directly together not to the Amp) but even if you don’t hook up the interconnect they are good well balanced speakers they just won’t give you the great stereo imaging that you would get with the SDA active. I’ll go home and edit this post once I verify the information.


I am using my Sunfire 300 x 2 to drive mine (SDA-2B's) YES- the 2B's are bi-amp / bi-wire capable. You can run the SDA interconnect cable between the 2 speakers with bi-wire but I am not sure about bi-amping with the interconnect cable (I would assume you can as long as both amps are common ground)
Image
Good sound—like good music, good wine and good fellowship—is meant to be shared.
"The difference between genius and stupidity is that genius has its limits" Albert Einstein
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ekog

User avatar

TFM-6cb

Posts: 254

Joined: Sun Apr 24, 2011 12:50 am

Location: Northern Virginia

Post Mon Jul 18, 2011 8:04 am

Re: Hello :)

Chauss wrote:
ekog wrote:
Mr. M-500t wrote:So, can the SDA's be driven effectively with a Carver amp ? I've read hear several times that our amps are not common grounded and the SDA's must be ran that way to get their full effect ! WTH ? I've past up alot of SDA's out here on the left coast because of this ! I want to know for real. Jesse, Please Help.



I've never had any issues driving the Polk SDA-2's with my M500t in fact I’ve driven them with a small 20w amp if I remember correctly (its late in the day for me sorry) they hook up to an amp normally but I think you can Bi-wire them (I’ll have to hunt down the manual for them and see for sure) but the carver can handle that as well the most important/unusual thing when dealing with the SDA’s is the interconnect cable (a cable that connects the 2 speakers directly together not to the Amp) but even if you don’t hook up the interconnect they are good well balanced speakers they just won’t give you the great stereo imaging that you would get with the SDA active. I’ll go home and edit this post once I verify the information.


I am using my Sunfire 300 x 2 to drive mine (SDA-2B's) YES- the 2B's are bi-amp / bi-wire capable. You can run the SDA interconnect cable between the 2 speakers with bi-wire but I am not sure about bi-amping with the interconnect cable (I would assume you can as long as both amps are common ground)



Ok I was to slow getting home today so ill add another post for continuity - here is what the Polk SDA2 manual says:

The Amplifier used must be of common-ground type. Virtually all receivers and amplifiers are constructed in this way with the amplifier chassis serving as the common-ground between channels. When using separate monophonic amplifiers, it is a good idea to connect a wire between the two chassis to ensure a common-ground.

I can’t find my manual for the M500t to make sure but after reading this I would guess that the common-ground issue isn’t an issue for the Carver’s other then the Mono-blocks which could possibly be rectified by connecting a wire between the 2 Mono-blocks but I would venture to say if you had those you would probably be running a different kind of speaker anyway.
Main System Setup:
Pre: Carver C2 | Amp: Carver M-500t|Equilizer: Sansui SE99|Speakers: Polk SDA2’s
Source: Tuner: Carver TX-2| Phono: Technics SL-1210 MkII with a Ortofon VMS 20E Mk II| DirecTV DVR | Pioneer HLD-X9 Laserdisc player | Samsung DVD/VHS player

Second System Setup:
Receiver: Yamaha RXV867| Fronts: Klipsch F-30's |Sub: Klipsch SW-112
Source: Radio |Internet/Network | Sony CDP-70 CD player
<<

BillD

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(pair of) SILVER-7 TUBE AMPs

Posts: 7295

Joined: Wed Jun 06, 2007 8:29 pm

Location: The west's most mid-western town, Scottsdale, Arizona

Post Mon Jul 18, 2011 12:05 pm

Re: Hello :)

Oh, but it is. M-500ts and early M-1.0ts were inverting amps (there are others, too). What this does is to invert the signal on one channel so the channels are out of phase. At the output terminals, the black on one channel is hot and the red is cold (re-inverted) so your speakers are in phase. This has some interesting properties. To bridge such and amp, you simply use both hot connections. Also, with one channel out of phase with the other, when one channel is driven positive, the other is driven negative, maximizing the available current from the power supply. However, the ground is not common between the channels.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
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ekog

User avatar

TFM-6cb

Posts: 254

Joined: Sun Apr 24, 2011 12:50 am

Location: Northern Virginia

Post Tue Jul 19, 2011 9:35 am

Re: Hello :)

OK here it is from the M500t Owners Manual Pages 6, 7

A common ground switching system may be used you will have to connect the common ground wire to the black terminal marked “chassis”, and the two outside terminals (one black, and one red) become the “hot” signal leads and may then be routed through the switching system of your choice. (The red terminal marked “chassis” remains unused.) At this point, there is no electrical conflict in terms of ground or signal leads; however, in order to preserve phase integrity, the wires that connect to each left speaker in the system must be reversed 180. (I believe there is a diagram showing this on the back of the Amp itself)

This procedure should only be required if you use the interconnect cable for the SDA part of the speakers if that cable is not connected you can connect to the amplifier as normal and the speakers will work as normal speakers (no SDA effect) before connecting the interconnect cable the speakers must be connected to the Amplifier as described above.
Main System Setup:
Pre: Carver C2 | Amp: Carver M-500t|Equilizer: Sansui SE99|Speakers: Polk SDA2’s
Source: Tuner: Carver TX-2| Phono: Technics SL-1210 MkII with a Ortofon VMS 20E Mk II| DirecTV DVR | Pioneer HLD-X9 Laserdisc player | Samsung DVD/VHS player

Second System Setup:
Receiver: Yamaha RXV867| Fronts: Klipsch F-30's |Sub: Klipsch SW-112
Source: Radio |Internet/Network | Sony CDP-70 CD player
<<

Chauss

User avatar

(pair of) SILVER-7t's

Posts: 2296

Joined: Tue Mar 22, 2011 4:35 pm

Location: In my own little world.....

Post Tue Jul 19, 2011 9:45 am

Re: Hello :)

Chauss wrote:
ekog wrote:
Mr. M-500t wrote:So, can the SDA's be driven effectively with a Carver amp ? I've read hear several times that our amps are not common grounded and the SDA's must be ran that way to get their full effect ! WTH ? I've past up alot of SDA's out here on the left coast because of this ! I want to know for real. Jesse, Please Help.



I've never had any issues driving the Polk SDA-2's with my M500t in fact I’ve driven them with a small 20w amp if I remember correctly (its late in the day for me sorry) they hook up to an amp normally but I think you can Bi-wire them (I’ll have to hunt down the manual for them and see for sure) but the carver can handle that as well the most important/unusual thing when dealing with the SDA’s is the interconnect cable (a cable that connects the 2 speakers directly together not to the Amp) but even if you don’t hook up the interconnect they are good well balanced speakers they just won’t give you the great stereo imaging that you would get with the SDA active. I’ll go home and edit this post once I verify the information.


I am using my Sunfire 300 x 2 to drive mine (SDA-2B's) YES- the 2B's are bi-amp / bi-wire capable. You can run the SDA interconnect cable between the 2 speakers with bi-wire but I am not sure about bi-amping with the interconnect cable (I would assume you can as long as both amps are common ground)


Sorry- I was incorrect....after checking my speakers- they are NOT bi-ampable unless you tear out the crossovers and go active...
There is only one set of binding posts on the back. The statement above is correct that they can be used with any amp if the "inter-connect" cable is not used!
Image
Good sound—like good music, good wine and good fellowship—is meant to be shared.
"The difference between genius and stupidity is that genius has its limits" Albert Einstein
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