Gustard H20 Balanced Headphone Amp

• Chassis: All aluminum
• Line input: 1 x RCA, 2 x XLR
• Line output: 1 x XLR (preamp output)
• Amp output: 1 x 6.35mm single-ended high resistance, 1 x 6.35mm single-ended low resistance, 2 x three-core balanced output, 1 x four-core balance output
• Dimensions, without protruding parts: 13 x 10.2 x 2.6 in (330 x 260 x 65 mm)

Analog Input

• RCA standard input group, input sensitivity typical value: 2 Vrms; input impedance 47 kohms
• XLR balanced input two groups, input sensitivity typical: 6 Vrms; input impedance 2.4 kohms

Front Analog Output (XLR)

• Output impedance: 200 ohms
• Frequency response: 20–80 kHz / -0.1 dB
• Signal-to-noise ratio: >122 dB
• Channel crosstalk: -130 dB at 1 kHz
• THD+N: <0.0004%
• IMD: <0.0004%

Amp Output

• Frequency response: 20–80 kHz / -0.1 dB
• Signal-to-noise ratio: >120dB
• Channel crosstalk: -120 dB at 1 kHz
• THD+N: <0.0005% at 6,000 mW into 32-ohm load
• IMD: <0.0005% at 6,000 mW into 32-ohm load
• Maximum distortion output power: 6,000 mW into 32-ohm load
• Maximum output power: 12,000 mW at 32 ohms (THD = 1%)

Load Power 

• 64 ohms: 5,360 mW
• 150 ohms: 2,680 mW
• 300 ohms: 1,340 mW
• 600 ohms: 670 mW

• Power adapter