QSC SPA4-100
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
QSC SPA4-100
SPECIFICATIONS SPA2-60 SPA4-60 SPA2-200 SPA4-100 Stereo Mode Watts Per Channel 8 Ω dynamic, both channels driven 60 W 60 W 200 W 100 W 4 Ω dynamic, both channels driven 60 W 60 W 200 W 100 W Bridged Mode Watts per channel 8 Ω & 4 Ω 200 W 100 W continuous 400 W 200 W 70 V & 100 V
250 W 125 W 350 W 175 W* Signal to Noise (A weighted, 20 Hz-20 kHz)
>100 dB >100 dB >100 dB >100 dB Input Sensitivity
1.23 Vrms (+4 dBu) 1.23 Vrms (+4 dBu) 1.23 Vrms (+4 dBu) 1.23 Vrms (+4 dBu) Maximum Voltage Gain
25.0 dB 25.0 dB 25.0 dB 25.0 dB Ouput Circuitry
Class D Class D Class D 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)
3.5 lb / 1.6 kg 3.5 lb / 1.6 kg 4.0 lb / 1.4 kg 4.0 lb / 1.4 kg Weight (Shipping)
6 lb / 2.3 kg 6 lb / 2.3 kg 6.5 lb / 2.5 kg 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 250 W