QSC SPA4-60 EnergyStar Power Amplifiers

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Sale price$925.00


Spec Sheet

The SPA Series amplifiers from QSC are two half rack 1U, convection cooled power amplifiers delivering two or four channels of 60 watts per channel into 4Ω and 8Ω. These amps can also be bridged to supply 200 watts into 4Ω and 8Ω, and up to 250 watts into 70V or 100V loads making them extremely flexible for Low-Z or High-Z applications. Utilizing an advanced Class-D amplifier design and Universal Power Supply the SPA Series are amazingly efficient allowing them to be convection cooled and are ENERGY STAR® qualified with quiet auto-ramp standby functionality. The SPA4-60 are housed in an unobtrusive black painted 1/2 RU chassis with unique mounting hardware enabling rack, table and wall mounting capabilities.


  • Up to 60 watts per channel into 4 and 8 ohms — The outputs of the SPA4-60 are designed to provide 60 watts per channel into Low-Z loads
  • ENERGY STAR® qualified amplifier — The SPA4-60 are EnergyStar qualified amplifiers; efficient class-D amplifiers that conserve energy and require no active cooling, so they reduce operational costs.
  • Bridgeable outputs for higher power — Bridging the outputs of the SPA4-60 provide up to 200 watts into low impedance, and up to 250 watts into 70V or 100V providing outstanding flexibility.
  • Auto-Ramp provides quiet startup and power-down — The EnergyStar Auto-Ramp circuitry ensures quiet and fast power up from Standby and seamless power-down following 28 minutes of inactivity, dramatically reducing power consumption.
  • Rack-mountable 1U, half rack width enclosure — The SPA4-60 can be mounted in 1/2 RU reducing rack space requirements. In addition their clever joining brackets enable easy under-table and wall-mounting.


Number of Channels 4
Power Rating 60 W per Channel
100 W RMS Bridged
Amplifier Class Class-D
Load Impedance / Voltage 4 / 8 Ohms
70 / 100 V
Frequency Response 20 Hz to 20 kHz ±0.1 dB (4 Ohms, 8 Ohms)
Input Sensitivity 1.23 V / +4 dBu
Input Impedance >10 Kilohms (Balanced/Unbalanced)
Max Gain 25 dB (at 8 Ohms)
Max Input Level +24 dBu / 12.3 V
SNR > 100 dB
EQ None
Filters 1 x High-Pass:
80 Hz
Ducking/Muting None
I/O 1 x Euroblock 10-Pin Line Input
1 x Euroblock 10-Pin Remote Input
2 x Euroblock 4-Pin Speaker Output
Digital I/O None
USB None
AC Input Power 100 to 240 VAC, 50 / 60 Hz
AC Power Connector 1 x IEC 15 A / NEMA 5-15
Display & Indicators Front Panel:
LED (Power/Protect/Signal)
Rear Panel:
LED (Limit/Protect/Signal, per Channel)
Rackmount Size 1 RU (with Included Hardware)
Cooling Convection
Certifications CE, ENERGY STAR, FCC, RoHS, UL, WEEE, as per Manufacturer
Dimensions 9.5 x 1.8 x 8.7" / 241.3 x 45.7 x 221.0 mm
Weight 3.5 lb / 1.6 kg
Packaging Info
Package Weight 7.25 lb
Box Dimensions (LxWxH) 15.4 x 11.5 x 3.4"

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