QSC SPA4-100 Energy Star 4-Channel Power Amplifier
QSC SPA4-100 Energy Star 4-Channel Power Amplifier
The SPA4-100 four channel amplifier delivers 100 watts rms per channel into 4 or 8 ohms; the four channels can also be bridged in pairs, each pair providing up to 200 watts rms into 4 or 8 ohms. The SPA4-100 bridged pair channels can be switched into 70V or 100V direct drive mode providing up to 350 watts rms into a 70V or 100V output; when in 70V or 100V mode the 80Hz highpass filter is automatically engaged.
Features:
- Up to 200 watts per channel into 4 and 8 ohms ó the outputs of the SPA4-100 model are designed to provide up to 100 watts per channel into Low-Z loads.
- Energy StarÆ qualified amplifier – The Energy Star qualified SPA amplifiers employ an efficient class-D design to conserve energy and reduce operational cost.
- Bridgeable outputs for higher power ó Bridgeable outputs for higher power – Bridging the outputs of the SPA4-100 will deliver up to 350 watts into 70V or 100V when bridged.
- Auto-Ramp provides quiet startup and power-down ó The Energy Star auto-ramp circuitry ensures quiet and fast power up from standby and seamless power-down following 25 minutes of inactivity, dramatically reducing power consumption.
- Rack-mountable 1U, half rack width enclosure ó The SPA amplifers can be mounted in 1 RU, 1/2 rack space, and their clever joining brackets enable easy under-table and wall-mounting.
Specifications:
- 8ohms dynamic, both channels driven: 100 W
- 4ohms dynamic, both channels driven: 100 W
- 8ohms & 4ohms: 200 W
- 70V & 100v: 350 W*
- Signal to Noise (A weighted, 20 Hz-20 kHz): >100 dB
- Input Sensitivity: 1.23 Vrms (+4 dBu)
- Maximum Voltage Gain: 25.0 dB
- Output Circuitry: Class D
- Frequency Response (20 Hz – 20 kHz): Frequency Response (20 Hz – 20 kHz)
- Input Impedance: >10 kohms (balanced), >10 kohms (unbalanced)
- Maximum Input Level: 12.3V (+24 dBu)
- Highpass Filter: Switchable 80 Hz when Bridged in 70V & 100V
- Switchable 80 Hz when Bridged in 70V & 100V: Power, per channel Signal, per channel Protect/Limit
- Controls: 4ohms/8ohms/70V Bridge Highpass On/100V Bridged Highpass On per channel pair
- Dimensions (HWD) inches: 1.7 x 8.7 x 9.5 / 1RU
- Dimensions (HWD) mm: 43 x 220 x 241 / 1RU
- Weight (Net): 4.0 lb / 1.4 kg
- Weight (Shipping): 6.5 lb / 2.5 kg
- Agency Approvals: UL, CE, Energy Star, RoHS/WEEE compliant, FCC Class B (Conducted and Radiated emissions), UL 2043 witd PL-Kit
- Carton Contents: Power cable, quick start guide, connector kit, rack mount ears, mounting brackets
