PSSO QDA-4400 4-Channel Amplifier
- 4-channel PA amplifier with class D circuitry
- 4 x 1100 W/4 ohms
- Low weight and height due to integrated switch mode power supply
- Reliable power amp with high impulse stability for a wide range of applications (e.g. compact PAs, multi-way PAs, international concerts)
- Speaker switch-on delay
- 3 operating modes can be selected (stereo, parallel or bridged)
- 4 level controls for precise level adjustment
- Input sensitivity adjustable
- LED VU meter and LEDs for activated protective circuit (protect), overload (clip), and signal per channel
- Complete protection set
- Highly efficient front-to-rear air routing
- Electronically balanced inputs via XLR mounting jacks, with XLR feed-through outputs
- Speaker outputs via lockable Speaker plugs
- Rugged steel chassis with aluminum front panel
Технические характеристики
| Power supply: | 100-240 V AC, 50/60 Hz |
| Power output (RMS): | |
| Stereo, parallel at 4 ohms | 4 x 1100 W |
| Stereo, parallel at 8 ohms | 4 x 650 W |
| 8 ohms bridged | 2 x 2000 W |
| Signal-to-Noise ratio: | >100 dB |
| Total harmonic distortion: | <0.1 % |
| Damping factor: | >500 |
| Slew rate: | >10 V/µsec |
| Crosstalk: | >65 dB |
| Input sensitivity: | 0.775 V/1.0 V/1.81 V or 39.3 dB/37 dB/32 dB, switchable |
| Voltage gain: | 39.3 dB |
| Input impedance: | 20 kohms (balanced), 10 kohms (unbalanced) |
| Input connectors: | 4 x XLR |
| Output connectors: | 4 x Speaker, 4 x XLR feed-through output |
| Circuitry: | Class D |
| Protection: | Soft start, short circuit, over load, over heat, clip limit, RF and VHF signals |
| Cooling: | 2 temperature-controlled fans, front-to-rear |
| Controls: | Power switch, level control, mode switch (stereo,parallel,bridged), input sensitivity |
| LED indicators: | protect, clip, signal, -5 dB, -10 dB, -20 dB (per channel), dB/V mode |
| Construction: | Steel chassis, aluminum front |
| Dimensions: | 483 x 461 x 91 mm |
| rack installation with 2 U | |
| Weight: | 9.5 kg |
| Power consumption: | 830 W 1/8 power |
| Frequency range: | 20 - 20000 Hz |
| Height: | 8,9 cm |
| Depths: | 46,1 cm |
| Width: | 48,3 cm |
| Power/channel (4 Ohm): | 1100 W |
| Power/channel (8 Ohm): | 650 W |