Hertz Venezia V4C 4-Channel Compact Marine Amplifier

The Hertz Venezia V4C is a compact four-channel marine amplifier for upgrading boat audio systems where installation space is limited. It can power four full-range marine speakers, or it can be configured for three- or two-channel operation with bridged outputs. Its 2-ohm-stable channels help support higher-output speaker layouts without requiring a large amplifier chassis.

At 14.4 volts, the Venezia V4C delivers 110 watts RMS per channel at 4 ohms or 190 watts RMS per channel at 2 ohms. Bridged channel pairs deliver 380 watts RMS at 4 ohms, allowing the amplifier to run a subwoofer or a dual-mono configuration. This flexibility makes it suitable for systems using marine coaxial speakers, a subwoofer, or both.

Hertz Advanced Class D amplification is designed for efficient power delivery and reduced heat generation. The amplifier has a specified 10 Hz to 42 kHz bandwidth and Hi-Res certification, supporting a wide audio range for detailed playback. Balanced fully differential inputs are used to help reject electromagnetic interference in electrically demanding marine installations.

The V4C is engineered for marine use, with an epoxy-coated circuit board, salt-fog testing, and IPX2 certification when mounted vertically with its connections facing downward. Its die-cast aluminum chassis uses fanless convection cooling rather than an onboard fan. Short-circuit, overload, and thermal safeguards reset automatically after protection events.

For system building, the amplifier provides independent front and rear filter sections with full-range, high-pass, and low-pass settings. A full-range front pre-out can feed an additional amplifier, while mono input options support simplified source connections. Safe-Lock plug-and-play input, output, and power connections are intended to make a secure marine installation more straightforward.

Key Features

• Four-Channel Class D Output: Delivers 110 watts RMS x 4 at 4 ohms or 190 watts RMS x 4 at 2 ohms.
• Bridgeable Channel Pairs: Provides 380 watts RMS x 2 at 4 ohms for bridged applications.
• Marine-Ready Construction: Uses an epoxy-coated PCB and is tested for marine environmental exposure.
• IPX2 Installation Rating: Rated IPX2 when installed vertically with connections facing downward.
• Adjustable Crossover Network: Front and rear channels offer full-range, high-pass, and low-pass filtering.
• Balanced Differential Inputs: Helps reduce noise from electromagnetic interference in the audio signal path.

Design & Installation

The Venezia V4C combines a die-cast aluminum compact chassis with a fanless convection cooling design. A polycarbonate panel protects the built-in filter controls, while the internal electronics use marine-focused corrosion protection. The amplifier weighs 2.62 kg (5.77 lb).

Use the V4C with a 9 to 16 VDC electrical system and a source unit or processor with preamp outputs. It accepts 2-ohm loads in four-channel operation, while bridged operation requires 4-ohm loads. Mount it vertically with the connections facing down when using its IPX2-rated installation orientation, and configure the front and rear filters to suit full-range speakers, a bridged subwoofer, or a mixed speaker-and-subwoofer system.