Description
Amplifier – GTA 270 DSP
Technical Data
Amplifier
- Number of channels (regular/bridged): 2/1
- Max. power into 4 ohms / 2 ohms: 2×140 watts, 1x 420 watts / 2x 200 watts
- RMS Power into 4 ohms / 2 ohms: 2x 70 watts, 1x 200 watts / 2x 100 watts (1% THD+N)
- Frequency response: 10-30,000 Hz (-3dB)
- Signal/noise ratio dB/A: >75 dB @ 1W/1kHz (4 ohms)
- Signal/noise ratio dB/A: >92 dB @ RMS power (4 ohms)
- Total Harmonic Distorsion (@ full rated power): <0.05 %
- Adjustable sensitivity: 0.2-5 V
- Stability: 2 ohms (4 ohms in bridged mode)
- Phase control: 0 – 180°
- Low-pass filter: 50 – 5,000 Hz / 32 steps
- High-pass filter: 50 – 5,000 Hz / 32 steps
- Subsonic filter: 0 – 80 Hz / 32 steps
- Compressor limiter: 10 dB
- Inputs: 2x Cinch/RCA, 1x Remote Control
- Outputs: 2x speaker, 1x Sub-out (Cinch/RCA)
- Power-on indicator color: green / red
- Integrated fuses (number/size): 1 / 20A
- Dimensions (w x h x d): 263 x 54 x 198 mm
- 10.4“ x 2.1“ x 7.8“
Digital Sound Processor (DSP)
- DSP type: 28/56 bit DSP processing (Analog Devices / Sigma DSP)
- Processor: ARM Cortex 50 MHz microcontroller
- Crossovers: active, switchable FULL/High-pass/Low-pass
- separate crossovers for speakers and subwoofer
- Selectivity (switchable): 48 dB/Oct (8th order Butterworth filter)
- 24 dB/Oct (4th order Butterworth filter)
- 18 dB/Oct (4th order Bessel filter)
- Compressor-limiter (switchable): 10 dB
Additional functions via optional remote GTA RC-01 (1101210001001)
- BassBoost: 0 – 15 dB @ 45 Hz
- Delay: separate control for left front channel
- 256 steps by 7mm, about 1.8m max delay
- Bass enhancing: Sub Harmonic Synthesizer SHS (bass enhancing AD algorithm)
