QSC GX-3 POWER AMPLIFIER 2x425W RMS @ 4Ω, 2x300W RMS @ 8Ω

overview specs docs
Specifications
- Signal to Noise (20 Hz - 20 kHz): 100 dB
- Input Sensitivity: 1.2 Vrms
- Voltage Gain (8 Ohms): 32.2 dB
- Output Circuitry: Class B
- Power Requirements: 6.3A
- Frequency Response: 20 Hz - 20 kHz, +0, 1 dB
- Dynamic Headroom (4 Ohms): 2 dB
- Damping Factor: 100
- Input Impedance: Greater than 20k (balanced)
- Maximum Input Level: +24 dB (16 Vrms)
- Input Connectors (each channel): 3-pin XLR and 1/4-inch TRS, balanced, parallel Phono, unbalanced
- Output Connectors (each channel): Speakon, 1/4-inch, Binding Posts
- Amplifier and Load Protection: Short circuit, open circuit, thermal, RF protection Load protected against DC faults
- Rear Panel Controls: Full Range / Crossover switch
- Dimensions (H x W x D): 3.5 x 19 x 10.1 inches (89 mm x 483 mm x 257 mm)
- Weight: 25 lbs (11.5 kg)

Stereo Mode:
- 8 Ohms / both channels driven: 300 Watts
- 8 Ohms / single channel driven: 350 Watts
- 4 Ohms / both channels driven: 425 Watts
- 4 Ohms / single channel driven: 500 Watts
- 2 Ohms / both channels driven: 200 Watts

Distortion:
- 8 Ohms: less than 0.05%
- 4 Ohms: less than 0.1%

Front Panel Controls and Indicators:
- Gain controls, 21 detents
- Red Clip LEDs, proportional, 0.1% THD threshold
- Green Signal LEDs, threshold -35 dB
- Blue Power LED, AC on

Dimensions and Weight in Packaging
    Shipping Weight: 28 lbs
    Shipping Dimensions: 24 x 15 x 6 in

HPS 1500 is a 2 channel power amplifier that delivers up to 2 x 750 W RMS @ 4 Ω (1500 W RMS bridged @ 8 Ω).

XLR inputs for patching in signals as well as Speakon ports for connecting speaker systems are provided for the maximum flexibility.
A forced air cooling system maintains a low operating temperature.

The high efficiency of the ED series enables maximum efficiency with low heat generation.

A new and unique Class-H circuity technology using state of the art SMD Surface Mount Technology with a reduced number of components offering performance levels exceeding audiophile levels like a slew rate of 50V/µs and high-end extended dynamic sound. The amplifier provides 2x300W into 4 Ohm is equipped complete with temperature-controlled fan cooling, all common protective circuits such as over-temperature, short circuit, RFI and soft start.
The integral soft clip limiter protects against damage to the connected loudspeakers, the activity of a protective circuit, signal and limiter are shown for each channel by LEDʼs.

Solid DYNACORD amplifier technology at highly competitive prices.
These amplifiers offer high, stable power output and a high efficiency factor on the high performance level and are therefore the ideal choice for driving a multitude of mobile and club systems. SL series power amplifiers are equipped with a comprehensive protection package and dynamic limiters.
The integrated, switchable Low-Pass Notch filter (a typical DYNACORD special feature) corrects the frequency response and optimizes the transient behaviour of loudspeakers.
Maximum Midband Output Power, THD = 1%, 1 kHz, Dual Channel 2 Ω - 900 W, 4 Ω - 600 W, 8 Ω - 380 W Maximum Single Channel Output Power, Dynamic-Headroom, IHF-A 2 Ω - 1700 W, 4 Ω - 950 W, 8 Ω - 480 W Maximum Bridged Output Power, THD = 1%, 1 kHz 4 Ω - 1800 W, 8 Ω - 1200 W Input Sensitivity, rated power @ 8 Ω, 1 kHz +3.1 dBu (1.11 Vrms) Maximum Input Level +21 dBu (8.69 Vrms) Voltage Gain, ref. 1 kHz 32.0 dB Frequency Response, ref. 1 kHz 10 Hz...40 kHz (±1 dB) Output Stage Topology Class AB Dimensions (W x H x D), mm 483 x 88.1 x 421.5 Weight 14.8 kg (32.6 lbs)

BASIC Series - Intelligent Power

BASIC - that's meeting the tightest budgets and professional requirements
in reliability, flexibility and sound. Alone or in combination with the other
products of the Bittner portfolio.
The consequent realisation of the Bittner quality standards indicates once
more our understanding of the contracting business. It underlines our philosophy
that cost consciousness has nothing to do with giving up standards. Compromise
is a word unknown to Bittner Audio!
The incorporation of detent potentiometers, clip limiter, protection circuits for
any imaginable situation, as well as a first-class production process using only
highest-quality components made the BASIC series the choice of most contractors.

Certainly more than basic!

High Tech SMT design
Excellent sound and superior impulse response
Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter, 3 ms Muting Delay
XLR Inputs
Speakon and Binding Posts
Clip Limiter
Toroidal transformers
LED Indicators for SIGNAL, CLIP, PROTECT, POWER
Temperature controlled, variable speed, low noise fans
Detent potentiometers
Stereo / Bridged / Parallel Mode
Ground Lift
Robust Steel Chassis
3 Year Warranty

TECHNICAL DATA:
Basic 800:  2x 400 W @ 4 Ohm
Class:  AB
Frequency Response: 20 Hz - 20 kHz (0 / -0.3 dB)
THD: < 0.03%
Signal-to-Noise Ratio: < -102 dB
Channel Seperation: > 85 dB
Input Sensitivity:  +6 dBu
Input Clipping:  22 dBu
Input Impedance:  20 kOhm
Damping Factor:  > 400 @ 4 Ohm
Cooling:  2x Fan (temp. reg. variable speed)
Weight:  13 kg.
Dimensions : 2 RU/483x89x265 mm (19" x 3.5" x 12.6“)

XB Series - Intelligent Power

Power Without Compromises.
The XB is designed for paging, music and alarm signals. Versatile, dynamic
and extremely rugged according to IEC286-3. For the highest requirements
in safety and quality.
Sequential power on, alive contacts and incorporated ground fault detection-
the XB is the solution under all conditions. Without the need for additional
equipment. For uninterrupted and troublefree operation.

High Tech SMT Design
Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter,
3 ms Muting Delay
PHOENIX / Speakon
LED Indicators for POWER, SIGNAL, CLIP, PROTECT
Temperature controlled, variable speed low noise fans
Volume Controls at the back
Stereo / Bridged / Parallel Mode
Softstart
Sequential Remote Power On
Alive Contact
Ground Lift
3 Years Warranty

TECHNICAL DATA:
XB 400:  2x 200 W @ 4 Ohm
Class:  AB
Frequency Response: 20 Hz - 20 kHz (0 / -0.3 dB)
THD:  < 0.025%
Signal-to-Noise Ratio:  < 103 dB
Channel Seperation:  > 85 dB
Input Sensitivity:  +6 dBu
Input Clipping:  22 dBu
Input Impedance:  20 kOhm
Damping Factor:  500 @ 4 Ohm
Cooling:  2x fan (temp. reg. variable speed)
Weight:12 kg /(26 lbs)                                    
Dimensions:  2 RU / 483 x 88 x 382 mm (19" x 3.5" x 15“)