For true audiophile performance, Starke Sound’s electronics team developed the innovative NS600 module, raising its sampling rate to 600 kHz and employing a pure analog power supply. Combining the high efficiency of class-D and the warm sound of class-AB amplifiers, the AD4.320 also offers the flexibility of 4-channel or bridged 2 or 3-channel operation. The AD4.320 is a perfect combination of usability and performance.
“Honestly, if Starke Sound priced this amplifier at three to five times its actual price, audiophiles would be more likely to take it seriously and give it the consistent rave reviews that it deserves. Its performance justifies that level of consideration. But if you want a sound-for-the-money bargain in the here and now, look closely at the Starke AD4.320!”
See the complete Secrets review here.
Construction:
Hybrid NS-600 module with analog power supply and Class D output
Channels:
2, 3, or 4 (user-selectable)
Sampling Rate:
600kHz
Output Power:
In 4-channel mode:
225 wpc @ 8 Ohms
320 wpc @ 4 Ohms
In 2-channel mode:
430 wpc @ 4 Ohms (Balanced Mode)
650 wpc @ 2 Ohms (Balanced Mode)
Gain:
23dB
Frequency Response:
5 – 100kHz (-1.5dB)
Output Current:
16.5 Amperes (single ended) / 33 Amperes (Balanced Mode)
Signal / Noise Ratio:
112dB (A-weighted)
Total Harmonic Distortion:
<0.04% @ 1kHz / 320 watts / 4 Ohms
<0.08% @ 20kHz / 320 watts / 4 Ohms
Inputs:
4 single-ended RCA + 4 XLR Balanced
RCA Input Impedance:
100k Ohms
XLR Input Impedance:
200k Ohms
Input Sensitivity:
2.8 VAC
Output Terminals:
4 pairs custom beryllium copper binding posts
Output Impedance:
0.136 Ohms (5 – 100kHz)
Minimum Load Impedance:
0.8 Ohms
Heat:
114 BTU / Hr. (at maximum output)
Fan Cooling:
No
Power Consumption:
8W (standby) / 14W (idle) / 1,500W (Maximum)
Control:
12VDC Trigger & Output
Cabinet:
Black Aluminum
Size:
17.7 x 5.6 x 13.4 inches (WxHxD)
450 x 142 x 232mm (WxHxD)
Weight:
26.8lbs / 12.2kg
Shipping Dimensions:
21.5 x 9.1 x 16.9 inches (WxHxD)
545 x 232 x 430mm (WxHxD)
Shipping Weight:
29.8lbs / 13.5kg
Price:
$1,399
Warranty:
3 years
Company:
SECRETS Tags:
Starke, Sound, Power, Amplifier, Speakers, Subwoofer
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