Stetsom Bravo HQ 400.4 Multichannel Car Audio Digital Amplifier - 2 Ohms Stable 4 Channel

Product Overview

Add four-channel power to your car audio system with the Stetsom Bravo HQ400.4 digital amplifier. It delivers 400 W RMS total, supports 2-ohm stereo loads, and offers adjustable low-pass and high-pass crossovers for shaping its output.

Use its four channels for a front-and-rear speaker setup, or bridge channel pairs for higher power into 4-ohm loads. Its 58.5 × 127 × 167 mm dimensions make it a compact option for installations where space matters.

Key Features & Benefits

• Four channels: Power multiple speaker channels from one amplifier.
• 2-ohm stereo stability: Supports the listed 2-ohm stereo load configuration.
• Bridge capability: Delivers up to 2 × 180 W RMS at 14.4 V into 4-ohm bridged loads.
• Adjustable crossovers: Variable low-pass and high-pass filters from 50 Hz to 2.3 kHz help tailor the output.
• Flexible inputs: RCA and high-level input sensitivity ranges accommodate different signal levels.
• Compact, lightweight chassis: Measures 58.5 × 127 × 167 mm and weighs 640 g.

Technical Specifications

Why Choose This Product?

The Bravo HQ400.4 gives you four channels in a compact amplifier, with power ratings listed at both 12.6 V and 14.4 V. That makes it easier to compare its output with your planned vehicle audio setup and electrical supply.

Its variable filters cover 50 Hz to 2.3 kHz for both low-pass and high-pass operation. RCA and high-level input options also give you different ways to match the amplifier to your audio source.

Installation & Compatibility Notes

Plan your speaker loads around the stated 2-ohm stereo output rating. Bridged output is rated for 4-ohm loads, with separate power figures for 12.6 V and 14.4 V.

The amplifier’s listed supply range is 9 V to 15.5 V DC. Its signal-related consumption figures are 17 A for music and 34 A for bass, useful details to consider when planning the vehicle’s electrical system.

Frequently Asked Questions

How many channels does the Bravo HQ400.4 have?

It has four channels, with a total RMS power rating of 400 W.

Can it operate with 2-ohm speakers?

Its output impedance specification is 2 ohms in stereo. The listed 2-ohm ratings are 4 × 85 W RMS at 12.6 V and 4 × 105 W RMS at 14.4 V.

What is the bridged power rating?

For 4-ohm bridged loads, it is rated at 2 × 150 W RMS at 12.6 V and 2 × 180 W RMS at 14.4 V.

What crossover range can I adjust?

Both the low-pass and high-pass crossovers are variable from 50 Hz to 2.3 kHz.

How much space does the amplifier need?

Its listed dimensions are 58.5 × 127 × 167 mm (H × W × D), and its weight is 640 g.

What input options does it support?

It lists RCA input sensitivity of 200 mV to 8.0 V and high-level input sensitivity of 1.5 V (FIO).

Explore More

Shop the Stetsom Bravo HQ400.4 at 12 Volt Outlet, and explore the Stetsom brand profile to learn more about the brand.