Electro Voice : Q44-II
Description
Building on a legacy of power and performance, Q44-II amps take Electro-Voices unique amplifier philosophy to a new level of efficiency and value. The Q44-II achieves superb audio performance because it’s designed for superior dynamic headroom and transient response, resulting in 30% greater output capability for short-duration signals. High-power Q Series models use sophisticated Class-H topology that dramatically reduces heat and cuts energy consumption by up to 50%, yielding racks that are easier to power and easier to cool.
Smaller Q series models are based on the proven Class-AB designs of EVs reference-standard P series. All models incorporate dynamic limiting to prevent dangerous output clipping, as well as extensive protections against thermal damage and electrical malfunction. Combining Class-H innovation with the sonic excellence and robustness of its Precision series heritage, the compact, affordable Q series is the ideal amplifier line for all sizes of clubs, concerts, performance centers, and sports venues.
Features
Q44-II features include:
- Outstanding value and performance for club and mobile systems
- Dynamic headroom for all real-world applications
- 650 W per channel (2 Ω)
- Class-AB design
- XLR pass-though input connections
- Easy connection to bi-amped loudspeakers
- Switchable LPN filter for extra tonal fundamentals and "kick"
- Protective low-cut for systems without subwoofers
- Built-in dynamic limiters
- Complete protection package
- Three-stage front-to-rear fans
Specifications
Amplifier Gain | 32 dB |
Continuous Rated Power (1 kHz, THD 1%) 2Ω | 650 Watts |
Continuous Rated Power (1 kHz, THD 1%) 4Ω | 450 Watts |
Continuous Rated Power (1 kHz, THD 1%) 8Ω | 270 Watts |
Continuous Rated Power (20-20 kHz, THD<0,2%) 4Ω | 400 Watts |
Continuous Rated Power (20-20 kHz, THD<0,2%) 8Ω | 200 Watts< -75 dB ref. 1kHz, @ 10% rated output power |
Cooling | Front-to-Rear, 3-stage fans |
DIM 30 | 0.05 % |
Electronics Type | Amplifier |
Frequency Response | 10 Hz - 40 kHz ±1 dB |
Impedance | 2/4/8 Ω |
Input Impedance (Balanced) | 20 kΩ |
Input Sensitivity | 2.2 dBu |
Intermodulation Distortion (SMPTE) | 0.1 % |
Maximum Input Voltage | 21 dBu 8.69 Vrms |
Network Control (IRIS-Net) | No |
Signal-to-Noise Ratio (A-weighted) | 106 dB |
Slew Rate | 25 V/µs |
Topology | Class-AB |
Total Harmonic Distortion | 0.03 % |
Height | 2RU 88.1 mm (3.47") |
Width | 483 mm (19.02") |
Depth | 421.5 mm (16.59") |
Weight Net | 12.6 kg (27.78 lbs) |
Resources & Documents
q-amps.pdf | Datasheet |