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1 4
4 x 105 Watts RMS
Stetsom  |  SKU: HQ400.4

STETSOM BRAVO HQ400.4 – 4-Channel Class D Amplifier 4 × 105 WRMS 2 Ohm

€119.90
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The Sound Auto Concept Team

Description

Four channels to build your sound balance

The STETSOM BRAVO HQ400.4 is a four-channel Class D amplifier. It delivers 4 × 105 W RMS at 2 ohms at 13.8 V, or 2 × 200 W RMS at 4 ohms in bridged mode, with adjustable filters on both pairs of channels.

4 × 105 W RMS
At 2 ohms at 13.8 V, total harmonic distortion of 1%
2 × 200 W RMS
At 4 ohms in bridged mode at 13.8 V, distortion of 1%
Class D
4 channels, response from 5 Hz to 30 kHz

Highlights

A versatile configuration

  • Four-channel or two-channel bridged operation according to the documented power and impedances.

Adjustable filtering

  • High-pass and low-pass filters from 50 Hz to 2.3 kHz on channels 1/2 and 3/4.

A compact enclosure

  • Dimensions of 167 × 127 × 58.5 mm, with thermal, speaker short-circuit, and out-of-range input voltage protections.

Description

To give more presence to your system, the BRAVO HQ400.4 brings together four amplification channels in a compact format. You can use all four channels or choose bridged mode at 4 ohms depending on your setup. At Sound Auto Concept, this model stands out for its adjustment options on both pairs of channels, useful for adapting the reproduced range to the connected speakers.

The high-pass and low-pass filters each cover 50 Hz to 2.3 kHz, with a slope of 12 dB/octave. The input sensitivity is adjustable from 0.2 to 8 V. The power values below distinguish the measurements at 13.8 V and 12.6 V so you can choose your configuration based on precise data.

  • Four-channel Class D amplification.
  • 4 × 60 W RMS at 4 ohms or 4 × 105 W RMS at 2 ohms at 13.8 V.
  • 2 × 200 W RMS at 4 ohms in bridged mode at 13.8 V.
  • Adjustable filters for channel pairs 1/2 and 3/4.
  • Indicated power input: 1 × 10 mm².

Technical specifications

Feature Value
Brand STETSOM
Range and model BRAVO HQ400.4
Amplifier type 4 channels, Class D
Power at 13.8 V at 4 ohms 4 × 60 W RMS, total harmonic distortion of 1%
Power at 13.8 V at 2 ohms 4 × 105 W RMS, total harmonic distortion of 1%
Bridged power at 13.8 V at 4 ohms 2 × 200 W RMS, total harmonic distortion of 1%
Power at 12.6 V at 4 ohms 4 × 50 W RMS, total harmonic distortion of 1%
Power at 12.6 V at 2 ohms 4 × 85 W RMS, total harmonic distortion of 1%
Bridged power at 12.6 V at 4 ohms 2 × 150 W RMS, total harmonic distortion of 1%
Operating voltage 9 to 15.5 V
Frequency response 5 Hz to 30 kHz
Signal-to-noise ratio > 90, unit not specified in the provided data
Input sensitivity 0.2 to 8 V
Low-pass filter, channels 1/2 and 3/4 50 Hz to 2.3 kHz, slope of 12 dB/octave
High-pass filter, channels 1/2 and 3/4 50 Hz to 2.3 kHz, slope of 12 dB/octave
Height 58.5 mm
Width 167 mm
Length 127 mm
Power input 1 × 10 mm²
Protections Speaker short-circuit, thermal, out-of-range input voltage

Why choose it

  • To have four amplification channels in a compact enclosure.
  • To choose between four-channel operation and bridged mode according to the documented impedances.
  • To adjust the filtering on channels 1/2 and 3/4.
  • To know the available power at two distinct supply voltages.

⚠️ IMPORTANT - INSTALLATION: It is IMPERATIVE to connect this amplifier to the impedance recommended by the manufacturer and to use the recommended cable size. For amplifiers over 2000 W RMS, the vehicle's original battery is no longer sufficient. It is strongly recommended to adapt the electrical supply (additional battery, reinforced alternator) to the amplifier's consumption to avoid any risk of failure and guarantee optimal performance. CAUTION: Any voltage drop below 12 V can damage the product.

Prepare your setup

Respect the announced impedances: the bridged mode power is given at 4 ohms. The indicated operating range of 9 to 15.5 V does not replace the installation precautions above. Since the fuse rating is not provided, check it in the manual before connecting.

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Stetsom

STETSOM BRAVO HQ400.4 – 4-Channel Class D Amplifier 4 × 105 WRMS 2 Ohm

€119.90

Four channels to build your sound balance

The STETSOM BRAVO HQ400.4 is a four-channel Class D amplifier. It delivers 4 × 105 W RMS at 2 ohms at 13.8 V, or 2 × 200 W RMS at 4 ohms in bridged mode, with adjustable filters on both pairs of channels.

4 × 105 W RMS
At 2 ohms at 13.8 V, total harmonic distortion of 1%
2 × 200 W RMS
At 4 ohms in bridged mode at 13.8 V, distortion of 1%
Class D
4 channels, response from 5 Hz to 30 kHz

Highlights

A versatile configuration

  • Four-channel or two-channel bridged operation according to the documented power and impedances.

Adjustable filtering

  • High-pass and low-pass filters from 50 Hz to 2.3 kHz on channels 1/2 and 3/4.

A compact enclosure

  • Dimensions of 167 × 127 × 58.5 mm, with thermal, speaker short-circuit, and out-of-range input voltage protections.

Description

To give more presence to your system, the BRAVO HQ400.4 brings together four amplification channels in a compact format. You can use all four channels or choose bridged mode at 4 ohms depending on your setup. At Sound Auto Concept, this model stands out for its adjustment options on both pairs of channels, useful for adapting the reproduced range to the connected speakers.

The high-pass and low-pass filters each cover 50 Hz to 2.3 kHz, with a slope of 12 dB/octave. The input sensitivity is adjustable from 0.2 to 8 V. The power values below distinguish the measurements at 13.8 V and 12.6 V so you can choose your configuration based on precise data.

  • Four-channel Class D amplification.
  • 4 × 60 W RMS at 4 ohms or 4 × 105 W RMS at 2 ohms at 13.8 V.
  • 2 × 200 W RMS at 4 ohms in bridged mode at 13.8 V.
  • Adjustable filters for channel pairs 1/2 and 3/4.
  • Indicated power input: 1 × 10 mm².

Technical specifications

Feature Value
Brand STETSOM
Range and model BRAVO HQ400.4
Amplifier type 4 channels, Class D
Power at 13.8 V at 4 ohms 4 × 60 W RMS, total harmonic distortion of 1%
Power at 13.8 V at 2 ohms 4 × 105 W RMS, total harmonic distortion of 1%
Bridged power at 13.8 V at 4 ohms 2 × 200 W RMS, total harmonic distortion of 1%
Power at 12.6 V at 4 ohms 4 × 50 W RMS, total harmonic distortion of 1%
Power at 12.6 V at 2 ohms 4 × 85 W RMS, total harmonic distortion of 1%
Bridged power at 12.6 V at 4 ohms 2 × 150 W RMS, total harmonic distortion of 1%
Operating voltage 9 to 15.5 V
Frequency response 5 Hz to 30 kHz
Signal-to-noise ratio > 90, unit not specified in the provided data
Input sensitivity 0.2 to 8 V
Low-pass filter, channels 1/2 and 3/4 50 Hz to 2.3 kHz, slope of 12 dB/octave
High-pass filter, channels 1/2 and 3/4 50 Hz to 2.3 kHz, slope of 12 dB/octave
Height 58.5 mm
Width 167 mm
Length 127 mm
Power input 1 × 10 mm²
Protections Speaker short-circuit, thermal, out-of-range input voltage

Why choose it

  • To have four amplification channels in a compact enclosure.
  • To choose between four-channel operation and bridged mode according to the documented impedances.
  • To adjust the filtering on channels 1/2 and 3/4.
  • To know the available power at two distinct supply voltages.

⚠️ IMPORTANT - INSTALLATION: It is IMPERATIVE to connect this amplifier to the impedance recommended by the manufacturer and to use the recommended cable size. For amplifiers over 2000 W RMS, the vehicle's original battery is no longer sufficient. It is strongly recommended to adapt the electrical supply (additional battery, reinforced alternator) to the amplifier's consumption to avoid any risk of failure and guarantee optimal performance. CAUTION: Any voltage drop below 12 V can damage the product.

Prepare your setup

Respect the announced impedances: the bridged mode power is given at 4 ohms. The indicated operating range of 9 to 15.5 V does not replace the installation precautions above. Since the fuse rating is not provided, check it in the manual before connecting.

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