ESC
S-30 Mk. III.1

S-30 Mk. III.1

BrandAtma-Sphere
ManufacturerAtma-Sphere Music Systems, Inc.
FunctionAmplifier, Power
Produced2011-2012
CountryUnited States
Form FactorStandard Width
Signal PathAnalog Hardware
Dimensions43.2 × 20.3 × 33 cm (W × H × D)
Weight24lbs
Power400W
Frequency Response2Hz-75kHz ±0.5dB
Output Power (16/8Ω)45W/30W
Amplifier TopologyClass A
Amplifier TypeOutput Transformerless (OTL)
Input Sensitivity3V
Input Impedance (Unbalanced)100kΩ
Input Impedance (Balanced)200kΩ
Output Impedance7Ω
Gain (8Ω)16dB
Frequency Response (1W)1Hz-100kHz ±3dB
Output Tube6AS7G
Tube Complement6AS7G (x10), 6SN7 (x6)
Connections
  • Input (Unbalanced) · RCA (Phono, Cinch) · Stereo, Socket (Female), Unbalanced
  • Input (Balanced) · XLR · Stereo, Socket (Female), Balanced