Dependable, high-output power.

The Electro-Voice Q99 is a rackmountable power amplifier that offers reliable, high-output power, high efficiency, and legendary pro audio performance. It's the premium choice as system drive for a variety of mobile and club sound systems like ZX, Tour-X, and Phoenix loudspeaker families.

Electro-Voice Q99 Power Amplifier Features:

• Comprehensive protection system — Protects against overheating, overload, short-circuit, HF, AND DC
• Patented LPN filter — Switchable frequency and phase response correction of connected loudspeakers

Keep your gear powered and protected—order the Q99 now.

Electro-Voice Q99 Power Amplifier Specifications:

• Maximum midband output power: 1250W @ 2 ohms, 900W @ 4 ohms, 550W @ 8 ohms (THD = 1%, 1 kHz, Dual-channel)
• Rated output power: 800W @ 4 ohms, 400W @ 8 ohms (THD < 0.1%, 20Hz–20kHz)
• Maximum single-channel output power (Dynamic-headroom IHF-A): 2450W @ 2 ohms, 1400W @ 4 ohms, 700W @ 8 ohms
• Maximum single-channel output power (
• Continuous, 1 kHz): 1700W @ 2 ohms, 1100W @ 4 ohms, 630W @ 8 ohms
• Maximum bridged output power (THD=1%, 1kHz): 2800W @ 4 ohms, 1800W @ 8 ohms
• Maximum RMS voltage swing: 78.8V
• Power bandwidth (THD = 1%, ref. 1kHz, half power @ 4 ohms): < 10Hz–30kHz
• Voltage gain (ref. 1kHz): 32dB
• Input sensitivity: +5.1dBu
• THD at rated output power (MBW = 80 kHz, 1 kHz): < 0.03%
• IMD-SMPTE (60 Hz, 7 kHz): < 0.1%
• DIM30 (3.15 kHz, 15 kHz): < 0.05%
• Maximum Input Level: +21 dBu (8.69 Vrms)
• Crosstalk (ref. 1 kHz, at rated output power) < -80 dB
• Frequency Response (ref. 1 kHz 10Hz–40 Hz (±1 dB)
• Input Impedance (active balanced): 20 kOhm
• Damping Factor: 1 kHz > 300
• Slew rate: 27 V/ Μs
• Signal-to-noise-ratio amplifier (A-weighted): >109 dB
• Output noise (A-weighted): < -71dBu
• Output stage topology: Class H
• Power consumption (1/8 maximum power @ 4 ohms): 700W
• Protection: Audio limiters, high temperature, DC, HF, Back-EMF, peak current limiters, inrush current limiters, turn-on delay
• Cooling: Front-to-rear, 3-stage fans
• Ambient temperature limits: 40°—105–F
• Safety Class: I
• Dimensions: 483mm W x 88.1mm H x 421.5mm D
• Weight: 35 lb.
• Signal processing: LPN, switchable

Electro-Voice Q99 Power Amplifier