SDA1 vs M10

jct74_dk

Hi

I am looking at some SDA1 with the two horizontal silver tweeters to replace my Monitor 10 series 2.

I love the sound of the M10 but they need some restoration.

Are the SDA1 of equal greatness as the M10?

Thanks.

Greets
JCT

pitdogg2

Apples to oranges. Two completely different critters.

jct74_dk

So you are saying if I like the M10 I wouldn't like the SDA?

pitdogg2

No I'm not.
What are you going to drive them with? Maybe you didn't realize the SDA1 is a 4 ohm speaker that drops into the high 3.6 ohm range and MUST have a common ground amp. Do you have anything that will drive them?

jct74_dk

I don't know if my Alchemist Forseti is a common ground amp but it delivers 150 w at 8 ohm.

pitdogg2

jct74_dk wrote: »

I don't know if my Alchemist Forseti is a common ground amp but it delivers 150 w at 8 ohm.

Well you had better find out. What I see is this

Output @ 1kHz into 8 ohms:> 153 Watts RMS

they are not rated at full bandwidth, hmmmm and I see this

Twin mono design

I see no ratings for anything below 8 ohm. The SDA1a will start out at 4 ohm and drop into the 3 ohm area. You need to do some homework to see if your amp is capable of running something @3 ohms and is common ground or can have the negative binding posts strapped together before you consider any SDA.

jct74_dk

Great thanks.

I will have to investigate if my amp is the right one then.

F1nut

The SDA1 is not a desirable model as the SDA tweeter imparts a phasey effect. Many disconnect that tweeter.

xschop

If your amp is common-ground or you can build a Dreadnaught, then consider this option....

https://forum.polkaudio.com/discussion/129598/has-anyone-tried-this-before-sda-crs-10/p1

pitdogg2

xschop wrote: »

If your amp is common-ground or you can build a Dreadnaught, then consider this option....

https://forum.polkaudio.com/discussion/129598/has-anyone-tried-this-before-sda-crs-10/p1

You cannot use the dreadnought on blade/Blade SDA's where both blades carry signal.

xschop

pitdogg2 wrote: »

xschop wrote: »

If your amp is common-ground or you can build a Dreadnaught, then consider this option....

https://forum.polkaudio.com/discussion/129598/has-anyone-tried-this-before-sda-crs-10/p1

You cannot use the dreadnought on blade/Blade SDA's where both blades carry signal.

That's why I suggested converting the M10's to SDA's via CRS+ crossovers (pin/blade).