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
| SPECIFICATIONS |
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SPA4-100 |
| Stereo Mode Watts Per Channel |
| 8Ω dynamic, both channels driven |
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100 W |
| 4Ω dynamic, both channels driven |
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100 W |
| Bridged Mode, watts per channel |
| 8Ω & 4Ω |
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200 W |
70V & 100v |
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350 W* |
Signal to Noise (A weighted, 20 Hz-20 kHz) |
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>100 dB |
Input Sensitivity |
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1.23 Vrms (+4 dBu) |
Maximum Voltage Gain |
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25.0 dB |
Ouput Circuitry |
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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) |
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4.0 lb / 1.4 kg |
Weight (Shipping) |
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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 |
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