The classic exterior design of a Blaupunkt GTa470M amplifier is only the tip of the iceberg. Underneath its cool aluminium black finish, you'll find a rugged amp that'll deliver solid performance over the long haul.

Blaupunkt's GTa470M amplifier puts out 70 watts of continuous power through 4 channels, or two channels of 200 watts RMS in bridged mode, so you can power a pair of speakers or a couple of subwoofers. Built-in frequency filters let you adjust amp output to complement your speakers.

Blaupunkt GTa-470 Key Features:

Amplifier

• Number of channels: 4 Channel
• Max. Power (Watt): 840
• Max. Power 4 Channel @4 Ohm (Watt): 4x140
• Max. Power 2 Channel @4 Ohm (Watt): 2x420
• Max. Power 4 Channel @2 Ohm (Watt): 4x200
• RMS power 4 channel @4 ohms (watts): 4x70
• RMS Power 2 Channel @4 Ohm (Watt): 2x200
• Signal-/noise ratio at nominal power (dB): >92
• Distortion factor at nominal power (1 kHz): <0.05 %
• Frequency response (Hz) -1dB: 10-30000
• Attenuation factor at 4 Ohm: >100
• Stability normal mode (Ohm): 2
• Stability bridge mode (Ohm): 4
• Input impedance (kOhm): >10
• Input sensitvity (V): 0,3-8
• High-pass filter crossover frequency (Hz): 80
• High-pass filter edge steepness (dB/Octave): 12
• Low-pass filter crossover frequency (Hz): 50-250
• Low-pass filter edge steepness (dB/Octave): 12
• Bass Boost setting range: 0-12dB @ 45 Hz
• LED for protect-mode: Yes

Inputs

• Permanent supply: Yes
• Ground: Yes
• Max. cable diameter (mm²): 10
• Ignition supply: Yes
• Surface connector: Gold

Outputs

• Loud speaker (number of): 4
• Loud speaker (connection type): Screw
• Loud speaker (max. cable diameter in mm²): 6
• Connector material: Gold

Housing

• Material: Aluminium extruded
• Color: Black
• Surface: anodised, brushed

General

• Height x Width x Depth: 2 x 7.8 16.8 inches (52 x 197 x 426 mm)