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View Full Version : R sda2 model


PW47
05-31-2009, 02:35 AM
hy ilike to have some info about this particular sda ,seems there is not enough info about this model and what can be done for upgrade . thanks pw
Toolfan66
05-31-2009, 10:44 AM
You need to post some pics of your speakers front and back, it would be very helpful for these guys to help you out with your needs. Maybe even a pic of your crossovers.
PW47
09-12-2009, 12:08 AM
Hy ilike to know the impedance of sda2 ? 4,6 0r 8 ohms ? Thanks pwilson iam having an litlle trouble with my hafler dh 500 ,is cutting after quarter of volume ! Any guess?
Lasareath
09-12-2009, 12:15 AM
I think SDA 2's are 6 ohms.

I think you need to strap your neg posts together on the DH 500

this taken from halfer.com:

The black output terminals are connected to ground in-ternally. The black terminals may be connected together(common ground) when in the normal stereo mode, toutilize headphone junction boxes, or other accessoriesemploying a common ground system
comfortablycurt
09-12-2009, 12:16 AM
Before we can tell you anything, we need to know which version of the SDA 2's you have. There are 3 versions of them.

Do they have three mid-woofers, 2 tweeters and one passive radiator? Or do they have two mid-woofers, one tweeter and a passive?
PW47
09-12-2009, 10:12 PM
YES.my sda2 is the model : TWO mid-woofers, one tweeter,and .. passive radiator .
PW47
09-12-2009, 10:17 PM
well ,thanks ! my SDA2 IS THE MODEL :two mid woofers ,one tweeter, and a passive .
comfortablycurt
09-12-2009, 11:26 PM
YES.my sda2 is the model : TWO mid-woofers, one tweeter,and .. passive radiator .

From there, we can narrow it down to one of two different models. Either the 2A's or 2B's. What connector does it have for the SDA interconnect? Is it blade/blade or pin/blade?

Also, you might want to pull one of the mid-woofers. If it's an SDA2A, both MW's will be MW6510's, and the SDA IC will be a blade/blade.

The 2B's will have one MW6503 and one MW6511 in each cabinet. The 2B's had both blade/blade and pin/blade IC's, but I believe most of them were pin/blade.
PW47
09-13-2009, 07:01 PM
My sda 2 have pin and blade ? In the gabinet back says :sda2
ben62670
09-13-2009, 07:13 PM
Dude spell check is free. Not picking on ya. I used it all the time;) Back to the speakers. The wire that connects the two speakers together will have either a round pin and a blade or a larger blade and a smaller blade.
george daniel
09-13-2009, 07:30 PM
Dude spell check is free. Not picking on ya. I used it all the time;) Back to the speakers. The wire that connects the two speakers together will have either a round pin and a blade or a larger blade and a smaller blade.

he.he:)
comfortablycurt
09-13-2009, 07:41 PM
My sda 2 have pin and blade ? In the gabinet back says :sda2

If it does have a pin/blade, like Ben described, then they're SDA2B's.

The 2B's can be modified to use the RD0-198's if you're planning on upgrading the XO's.