Quest - QX4750 - 4 x Channel Power amplifier, 750W per ch,4Ω-16Ω, 2 CH 1500W 70v-100v. Optional Dante/AES67 Version.
SKU QX4750
QX4750
High Performance 4 x 750W Power Amplifier
The Quest QX4750 is engineered within a robust 2U rack-mount chassis to deliver 750W per channel, offering bridgeable outputs for both low-impedance and high-impedance configurations. Integrated HP/LP filters, limiters, and a rapid 1ms standby wake-up feature ensure precise signal processing and efficient operation, even in demanding commercial sound installations and multi-zone applications. Advanced Class D technology maintains exceptional dynamic range and minimal distortion for uncompromised audio fidelity.
Key Specifications:
- Channels: 4 x 750W (Low-Z) or 2 x 1500W (Bridge Stereo for Low-Z & 70/100V)
- Mounting: 2RU Rack
- Optional: Dante/AES67 Version
SPECIFICATIONS
| Maximum Dynamic Power (@ 1kHz, 1% THD) (PEAK) |
|
Total 3000 W |
Normal Operation |
Bridge-Mono Mode |
|
8Ω 4 x 400W |
4Ω 4 x 750W |
70V N/A |
100V N/A |
8Ω 2 x 1500W |
4Ω 2 x 1400W |
70V 2 x 1500W |
100V 2 x 1500W |
|
| Maximum Continuous Power (@ 1kHz, 1% THD) (RMS) |
|
Total 3000 W |
Normal Operation |
Bridge-Mono Mode |
|
8Ω 4 x 400W |
4Ω 4 x 750W |
70V N/A |
100V N/A |
8Ω 2 x 1500W |
4Ω 2 x 1400W |
70V 2 x 1500W |
100V 2 x 1500W |
|
| I/O |
| OUTPUT CIRCUITRY |
UMAC™ Class-D – full bandwidth PWM modulator with ultra-low distortion |
| OUTPUT CHANNELS |
Four outputs on SpeakON Connectors |
| INPUT CHANNELS |
XLR Balanced Inputs and Euroblock Links |
| DEFAULT GAIN |
32 dB |
| FREQUENCY RESPONSE |
20 Hz to 20 kHz (+/-0.3 dB) |
| TOTAL HARMONIC DISTORTION |
0.004% (1 kHz @ 1/8th Power / 8 ohm load) |
| DYNAMIC RANGE |
111 dB (A-weighted) |
| MAXIMUM INPUT LEVEL |
+24 dBu |
| INPUT IMPEDANCE |
10kohm |
| LATENCY |
N/A |
|
| CONTROL |
| CONTROLS AND INDICATORS (FRONT) |
Per Channel: Volume Potentiometer, 80 Hz HPF Switch, 100 Hz LPF Switch, Bridge-Mono Switch, Limiter Switch and Auto-Standby Switch |
| CONTROLS AND INDICATORS (REAR) |
N/A |
| CONTROL AND MONITORING |
N/A |
| DIGITAL SIGNAL PROCESSING |
N/A |
| PROTECTION CIRCUITS |
Thermal protection, Over-Current Protection, DC Protection, HF Protection |
|
| ELECTRICAL |
| MAINS POWER INPUT |
Universal Mains, 100-240V, 50-60 Hz |
| MAINS CONNECTOR |
powerCON |
| POWER CONSUMPTION - STANDBY |
4.8 W |
| POWER CONSUMPTION - IDLE |
28 W |
| POWER CONSUMPTION - 1/8TH POWER / 8 ohm Load |
200 W |
| POWER CONSUMPTION - 1/3RD POWER / 8 ohm Load |
533 W |
|
| HEAT |
| HEAT GENERATED - STANDBY |
16.4 BTU/hr / 4.1 kJ per hour |
| HEAT GENERATED - 1/8TH POWER / 8 ohm Load |
205 BTU/hr / 51 kJ per hour |
| COOLING |
Fan-Forced Air Cooling – Temperature-Dependent |
| FAN NOISE (ANECHOIC CHAMBER @ 1 m) |
38 dB(A) |
|
| SIZE |
| RACK SIZE |
2RU |
| DIMENSIONS (W x H x D) |
482 x 88 x 416 mm (19 x 3.5 x 16.4") |
| WEIGHT |
10.2 kg (22.5 lbs) |
| SHIPPING DIMENSIONS (W x H x D) |
610 x 135 x 550 mm (24 x 5.3 x 21.7") |
| SHIPPING WEIGHT |
12 kg (26.5 lbs) |
|
| ACCESSORIES |
| ACCESSORIES (INCLUDED) |
Mains Cable, Feet |
| ACCESSORIES (AVAILABLE SEPARATELY) |
Dante® 4CH Input Card (QDNT4D), Dante® 4CH Input Card with Switched Output (QDNT4DS), Volume Control Card (QVR4), Wall Plate Volume Control (WPV1) |
| OPTIONS |
Dante® Expansion Card (additional 4 inputs, Dante® AoIP, AES67 compatible) |
|
