QSC SPA4-100 Energy Star 4-Channel Power Amplifier (100W)

1/2 RU 4 Channel EnergyStar Power Amplifier - 4x 100W per Channel

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 - the outputs of the SPA4-100 model are designed to provide up to 100 watts per channel into Low-Z loads.
• ENERGY STAR 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 - 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 - 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 - 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:

• Stereo Mode Watts Per Channel
• 8Ω dynamic, both channels driven: 100 W
• 4Ω dynamic, both channels driven: 100 W
• Bridged Mode, watts per channel
• 8Ω & 4Ω: 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
• Ouput Circuitry: Class D
• Frequency Response (20 Hz - 20 kHz): Frequency Response (20 Hz - 20 kHz)
• Input Impedance: >10 kΩ (balanced), >10 kΩ (unbalanced)
• Maximum Input Level: 12.3V (+24 dBu)
• Highpass Filter: Switchable 80 Hz when Bridged in 70V & 100V
• Front Panel Indicators: Power, per channel Signal, per channel Protect/Limit
• Controls: 4Ω/8Ω/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
• *Peak Power - dependent on other channel loads.