2. amps-preamps
  3. 149317-132962

It is balanced or not?

Hello everyone, I am new to this page, I thank the Audiogon team for allowing me to be here with you, I have a question: I have the preamp and DAC: "Emotiva Differential Reference XDA-1" it has the following digital inputs: "S/PDIF (optical and coaxial) and AES/EBU (XLR)", the XDA-1 has balanced outputs for an speakers amplifier, inside it has the amplifier: "Texas Instruments Burr Brown OPA2134" and I want to know if it really works balanced; the XDA-1 has the DAC: "Analog Devices AD1955" inside. thanks
joser9616
georgehifi's avatar
georgehifi
10,312 posts
 
Too many sources and amps are really SE main circuitry with opamps on the input or output to make them pseudo balanced (xlr) just to suck in the xlr freaks.

In these cases stick with SE, and you bypass these opamps (best opamp is no opamp). You only need balanced (xlr) if your running 10mts of interconnect through bad surroundings with lots of rf emitting equipment.
Cheers George
joser9616 OP
29 posts
 
@auxinput: Well, I think the best way that the Crown D-75 can sound is in stereo, because each amplifier has its connection balanced or unbalanced and is not divided for 2 amps, as it is on page 6-1 of the service manual; in My opinion, the best way they can sound is to put them both in stereo and connect the right speaker on channel 2 of one of them and the left speaker on channel 1 on the other, both in stereo, so each internal amp has its conection. what did you think? thanks :-) 
auxinput
2,920 posts
 
yeah, that sounds like a good plan.  If you have two D-75 amps, use one for left speaker and use the other amp for right speaker.  That way, you are not sharing a single amp power supply for both speakers.
joser9616 OP
29 posts
 
@auxinput: yes, but not in mono, in dual channel but using one of the amps for a speaker :-)
auxinput
2,920 posts
 
right.
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