Currant and channel crosstalk specs.

[emotifan]

I wish Emotiva would include currant output and inter channel cross talk values in their amplifier specs. These two specs can give a lot of insight in to an amps capabilities. For instance I know from Audioholics that the original XPA-2 has phenomenal cross talk specs that blow even the Parasound A21+ out of the water. I'm assuming the Gen 2 retains that and is why I enjoy such a wide sound stage with mine. I'm considering a DR2 but with a completely different design I'd like to know those numbers. I know it has a max currant output of 32A from reading the review on Hi-Fi News but that isn't given in the list of specs published by Emotiva. That number seems a little low for an amp with the rated power the DR2 has. Care to weigh in Keith?

[novisnick]

Sorry that I cannot help you with the specs but I am familiar with the DR2. I’m still spending time with it and getting to know it, that said I’ve not found it lacking in and way. I’ve not yet been able to utilize the balanced connections but I plan to or it would have been a large waist of money to pay for all the extra work and wiring in it.
For reference I can tell you that I’ve a couple sets of monoblocks to compare it too. I’m very impressed so far.

[garbulky]

The only measurmeents we have is for the XPA-2 gen 3 version from Stereophile.
The IMD results were not encouraging.
"Channel separation (not shown) was good rather than great, at 75dB or so from 20Hz to 5kHz, decreasing slightly to 67dB at the top of the audioband. The unweighted, wideband signal/noise ratio, taken with the unbalanced inputs shorted to ground, was good at 70.5dB left and 69.3dB right, both ratios ref. 1W into 8 ohms. Limiting the measurement bandwidth to the audioband improved these respective ratios to a superb 95 and 93.9dB, while an A-weighting filter offered further improvement, to 99 and 98dB. The spectrum of the XPA Gen3's low-frequency noise floor while it drove a 1kHz tone at 1W into 8 ohms is shown in fig.3. Other than some very low-level spuriae at 60Hz and its odd-order harmonics in the left channel, the XPA's noise floor is very clean."
(1 watt)
(100 watt)
More here
www.stereophile.com/content/emotiva-xpa-gen3-two-channel-power-amplifier-measurements

[emotifan]

Aug 4, 2020 15:50:24 GMT -5 garbulky said:

The only measurmeents we have is for the XPA-2 gen 3 version from Stereophile.
The IMD results were not encouraging.
"Channel separation (not shown) was good rather than great, at 75dB or so from 20Hz to 5kHz, decreasing slightly to 67dB at the top of the audioband. The unweighted, wideband signal/noise ratio, taken with the unbalanced inputs shorted to ground, was good at 70.5dB left and 69.3dB right, both ratios ref. 1W into 8 ohms. Limiting the measurement bandwidth to the audioband improved these respective ratios to a superb 95 and 93.9dB, while an A-weighting filter offered further improvement, to 99 and 98dB. The spectrum of the XPA Gen3's low-frequency noise floor while it drove a 1kHz tone at 1W into 8 ohms is shown in fig.3. Other than some very low-level spuriae at 60Hz and its odd-order harmonics in the left channel, the XPA's noise floor is very clean."
(1 watt)
(100 watt)
More here
www.stereophile.com/content/emotiva-xpa-gen3-two-channel-power-amplifier-measurements

That review is what has me wanting to know that spec on the DR2. Although the reviewer who did the listening tests really liked the XPA-2 Gen3 with Magnepan .7s I believe.

[vcautokid]

The Gen 2 has excellent channel separation and good crosstalk performance. The XPA-2 is really close to what happens when XPA-1 needed to go Stereo? XPA-2 naturally. XPA-2 was the most capable 2 channel amplifier and my brother owns mine, as I went in a different direction. Before I moved out here to Nashville I pitted this against Krell and other high end Amplifiers in our store, the XPA-2 imaged just as great if not better than some of them. Crosstalk and Stereo Separation and image are no problems with the XPA-2, and it will drive planars and Electrostatic Speakers just fine with headroom to spare. 500 watts into 4 ohms and 300 watts into 8 ohms. Almost a perfect voltage source.