Great review as usual Dan. I enjoyed reading it, thanks. I have always been attracted to the looks of Gato's equipment. My jaw dropped when I read the 400 x 2 rating at 8 ohms. It looks like Gato DIA-400 is part of the crew that are giving the class D amplification a good rep. Just for fun here is the Gato DIA-400 specs:
Output power: 2x 400 W / 8 Ω - 2x 800 W / 4 Ω
Frequency response: 20 Hz-20 kHz - 0.5 dB, and 2 Hz-70 kHz - 3 dB
Total Harmonic Distortion: < 0,01% at rated power
Signal to noise ratio: < 102 dB
Line out maximum level: 13V balanced, 6,5V unbalanced
Total Harmonic Distortion: < 0,001% pre out
Input impedance: 20 kΩ RCA or 40 kΩ Balanced
Line output impedance: 75 Ω
Voltage gain: 26 dB (+10 db headroom)
Recommended speaker load: 4 -16 Ω
Connectors
Balanced analogue inputs: 1 pair gold plated XLR Neutrik
Unbalanced analogue inputs : 2 pairs of gold plated RCA Stereo
Digital inputs: 1 pc USB type B, 1 pc Toslink, 1 pc RCA
Balanced analogue outputs: 1 pair gold plated XLR Neutrik
Unbalanced analogue outputs: 1 pair of gold plated RCA Stereo
Speaker output : 2 pairs of gold plated safety banana
Trigger, 12 V 1 pc mini jack
Size & Power
Power Requirements: 115 VAC/230 VAC, 50 Hz/60 Hz, 1600W max
Power consumption: stdb/idle/max < 1W/35W/1600W
Dimensions: (WxHxD) 325 x 105 x 420 mm / 12.8 x 4.1 x 16.5"
Weight: 13 kg / 28.7 lb
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