Mosconi Pro 4 | 30 EVO Amp 4 Channel Class AAB Bridgeable Amplifier 150w RMS

The Mosconi Pro 4|30-AAB EVO is a 4-channel Class AAB bridgeable amplifier from Mosconi's Pro EVO range, delivering 4 x 150W RMS at 4 ohm, 4 x 240W at 2 ohm, or 2 x 480W bridged at 4 ohm.

This listing is the Pro 4|30 EVO. The Pro EVO range is also available as the Mosconi Pro 2|10 2-channel stereo amplifier.

Key specifications

• Channels: 4, Class AAB, bridgeable
• Power at 4 ohm: 4 x 150W RMS
• Power at 2 ohm: 4 x 240W
• Bridged at 4 ohm: 2 x 480W
• Input sensitivity: 1 to 8.75V (0.25V steps via DIP switches)
• Crossover: DDSP mode only
• Signal-to-noise ratio: 120dB
• Dimensions: 500 x 205 x 55mm
• Weight: 5.1kg

Mosconi Pro 4|30-AAB EVO

The Pro 4|30 AAB EVO is a 4-channel amplifier built for high-end car audio systems where sound quality and precision come first.

At its core is AAB technology — an amplifier architecture fundamentally different from conventional Class AB designs. Rather than using a shared control stage for all output transistors, the output stage operates with distributed regulation at the component level. The result is exceptionally stable, linear signal processing under real-world conditions: temperature variations, load fluctuations and dynamic music signals included.

AAB Technology: Control at Component Level

In conventional amplifiers, the entire output stage is controlled through a common bias point — an approach that assumes all output transistors behave identically. In practice, they never do.

AAB technology takes a different approach. Each output transistor is monitored and regulated individually. Local control loops keep every component within its optimal working range, independent of:

• temperature
• current flow
• load behaviour
• component tolerances

The result is significantly more stable and consistent operation across the amplifier as a whole.

Stability Instead of Compromise

This distributed architecture reduces the common issues found in conventional designs:

• thermal drift
• uneven transistor behaviour
• unstable operating points
• dependency on component tolerances

Even at high output levels, with complex speaker loads and highly dynamic music, the amplifier stays controlled and predictable.

Separate Signal and Power Paths

The internal architecture keeps the sensitive audio signal path completely separate from the power supply section — at both PCB layout and grounding level.

This separation specifically reduces:

• interference caused by current peaks
• load feedback into the power supply
• internal electromagnetic interference within the amplifier

The signal remains clean, stable and uncoloured even at high output levels.

Sound Character: Control and Naturalness

AAB technology combined with a clean internal architecture delivers stable playback under real-world operating conditions. Key characteristics include:

• high detail resolution
• stable spatial imaging
• clean microdynamics
• controlled behaviour at high listening levels

Under increasing load, the sound remains structured and transparent.

Power and Flexibility

Four channels allow for versatile system configurations, including stereo operation and active multi-way systems. The Pro 4|30 AAB EVO combines substantial power reserves with precise loudspeaker control. For subwoofer duties alongside this amplifier, the Mosconi Pico 1 mono amplifier is a natural companion.

Stability Under Real-World Conditions

The entire architecture is designed to remain stable outside ideal laboratory conditions. A high-performance power supply ensures consistent current delivery, while an internal monitoring system supervises temperature and operating status — keeping the amplifier reliable and fully controlled under sustained high-load operation.

Precise Signal Adjustment Without Potentiometers

Input sensitivity is adjusted per channel via DIP switches in 0.25V increments across a range of 1 to 8.75V. This provides consistent, long-lasting settings with no mechanical wear parts.

Optimised DirectDSP Input

The integrated DirectDSP input allows direct connection to external DSP systems. Signal processing within the amplifier is bypassed, keeping the audio signal unchanged and low-loss — particularly relevant for fully DSP-based installations.