QSC SPA4-60 Four Channel Commercial Amplifier

The SPA4-60 is a four-channel, half-rack commercial amplifier delivering 60 watts per channel into 4 or 8 ohms in stereo mode, or up to 125 watts per channel pair bridged into 70V or 100V. A Class-D output stage and Universal Power Supply keep it fully convection cooled with no fan noise, and ENERGY STAR auto-ramp circuitry drops it into standby during silence with a pop-free wake when signal returns.

The 1U half-rack chassis mounts alone or paired with a second SPA amp in a single rack space, sharing its footprint and connecting hardware with the rest of the SPA line for mixed two- and four-channel install jobs.

Channels	4, 60 W per channel into 4 ohm or 8 ohm stereo
Bridged Output	Up to 125 W per channel pair into 70V or 100V
Frequency Response	20 Hz - 20,000 Hz
Signal to Noise	> 100 dB (A-weighted, 20 Hz - 20 kHz)
Output Circuitry	Class D
Input Impedance	> 10 kohm, balanced and unbalanced
Dimensions	1.7 x 8.7 x 9.5 in (43 x 220 x 241 mm), half-rack 1RU
Net Weight	3.5 lb (1.6 kg)