GTA 250

nel must also be connected to the left-hand loudspeaker and the right-hand amplifier channel to the right-hand loudspeaker.

Bridged loudspeaker connections

The GTA can also be bridged in a mono con- figuration. This enables you to use the am- plifier for one or more subwoofer(s) or a mid- range speaker. In this configuration the am- plifier sums the right-hand and left-hand channels, delivering a single channel (mono) output.

Note:

The amplifier can sum the right- and left-hand signal information only if both the right- and left-hand RCA connections have been made.

CAUTION:

The amplifier must be presented with a load of 4 Ohms or higher in bridged mode. A lower load will cause the ampli- fier to overheat or switch off. This can lead to permanent damage of the unit.

Adjustment of the type and range of the cross-over frequencies

The type of crossover (i.e. Òlow-passÓ or Òhi- passÓ) and the desired crossover frequency can be selected on the GTA 250. If, for ex- ample, you wish to drive a pair of subwoof- ers, connect in accordance with the low-pass diagram (fig. 3). The crossover frequency is dependent upon the loud-speaker frequen- cy range (consult the loudspeaker manufac- turerÕs data for the recommended frequen- cy range).

ÒHigh- PassÓ frequency control

This control is active when the switch is in the ÒHi-passÓ position, and permits selection of the desired crossover frequency. Exam- ple: at a of 65 Hz, the loudspeaker has a frequency range of 65 Hz to 30.000 Hz.

ÒLow-passÓ frequency control

This control is active when the switch is set to ÒLow-passÓ and permits selection of the desired crossover frequency. Example: at a setting of 150 Hz, the loudspeaker has a fre- quency range of 10 Hz to 150 Hz.

Bass boost

You can adjust the bass output of the ampli- fier using the bass boost control. The set- tings range covers 0 dB to +18 dB.

Operating indicator

(POWER / PROTECTION)

Green lamp: Power amp on, regular operat- ing condition

Red lamp: Power amp has been switched off electronically, due to a fault or failure.

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Blaupunkt GTA 250 Bridged loudspeaker connections, ÒHigh- PassÓ frequency control, ÒLow-passÓ frequency control

GTA 250 specifications

The Blaupunkt GTA 250 is a remarkable power amplifier that caters to audio enthusiasts seeking to elevate their sound experience with powerful performance and exceptional sound quality. Known for its compact design and robust features, the GTA 250 is designed to seamlessly fit into various automotive audio systems, delivering an impressive blend of power and clarity.

One of the standout features of the Blaupunkt GTA 250 is its impressive power output. With a maximum power of 250 watts, this amplifier guarantees that users can enjoy high-volume levels without distortion. The combination of high-efficiency design and low heat generation makes it a reliable option for extended listening sessions. It operates in a Class AB configuration, ensuring that the audio remains natural and vibrant, regardless of the volume levels.

The GTA 250 is equipped with advanced technologies that enhance audio performance. It includes a built-in low-pass filter that allows users to tailor the frequency response to their liking. This feature is particularly beneficial for those who want to integrate subwoofers into their system, as it provides precise control over the bass frequencies. The amplifier also boasts a high-pass filter, which can be used to ensure that higher frequencies are transmitted cleanly, effectively minimizing distortion and resulting in a well-balanced sound.

Another noteworthy characteristic of the GTA 250 is its robust construction. The amplifier features a sturdy aluminum chassis that not only contributes to its durability but also aids in the cooling process. Efficient heat dissipation is crucial for maintaining optimal performance, especially during heavy usage.

The amplifier supports both RCA and speaker-level inputs, making it versatile for various installation scenarios. This flexibility allows users to connect it to a wide range of audio sources, ensuring compatibility with both factory and aftermarket head units.

Overall, the Blaupunkt GTA 250 is an excellent choice for those looking to enhance their car audio system. With a combination of powerful performance, advanced technologies, and solid build quality, it stands out in the competitive market of automotive amplifiers. Whether you are a casual listener or an audio aficionado, the GTA 250 promises to deliver an engaging sound experience that transforms the way you enjoy music on the road.