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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 | SPA4-100 | |||
| 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 | |||
Shipping
Free US shipping on orders over $200. Orders under $200 ship at the rate shown at checkout. Oversized items ship by freight; we confirm the quote with you first.
Shipping policyReturns
Return within 30 days of delivery. Opened items may carry an open-box fee of up to 30%, set by our QA team on inspection. Return shipping is paid by the customer.
Start a returnDamaged or wrong item?
Tell us within 3 days of delivery with photos and we'll make it right, with no fee.
Contact usQSC warranty
This product is covered by the manufacturer's warranty. We help you with the claim from start to finish.
Warranty detailsSupport from real people
Setup questions, compatibility, firmware: chat with a specialist or email info@silarius.com, Monday to Friday, 8am to 4pm ET.
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