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
SPA2-60
SPA4-60
SPA2-200
SPA4-100
Stereo Mode Watts Per Channel
8 ? dynamic, both channels driven
60 W
60 W
200 W
100 W
4 ? dynamic, both channels driven
60 W
60 W
200 W
100 W
Bridged Mode Watts per channel
8 ? & 4 ?
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 k? (balanced), >10 k? (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
4?/8?/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
All specifications are subject to change without notice.
