Vonyx VXA-1200 II - 2x 600W PA Power Amplifier with SMT Technology and Bridge Mode
The Vonyx VXA-1200 II is a high-performance stereo power amplifier designed to deliver reliability and raw power in any live sound setup or fixed installation. With a 2 x 600W output capacity, this amplifier is a versatile solution for mobile DJs, bar and club owners, and sound engineers seeking robust, hassle-free amplification. Its internal construction is based on modern Surface Mount Technology (SMT) , ensuring superior circuit stability, extremely low noise levels, and a wide, transparent frequency response—ideal for faithfully reproducing music at high volumes.
This model stands out for its incredible operational flexibility. Thanks to its mode switch, you can configure it for traditional stereo operation or switch it to Bridge mode , transforming it into a powerful 1200W monophonic amplifier at 8 ohms . This feature makes it perfect not only for powering full-range speakers but also for managing passive subwoofers that require high current output. Its standard 19-inch design allows for easy integration into any professional equipment rack, occupying only 2U of height, which facilitates transport and cable management at mobile events.
Main features
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Flexible and switchable power: It offers 2x 600W at 4 Ohms in stereo or a massive 1200W in bridged mode at 8 Ohms, adapting to the needs of your speaker system.
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Universal connectivity: The rear panel is equipped for any situation, with inputs via RCA and 6.3mm jack connectors, and versatile outputs including NL4 (Speakon) compatible connectors, 6.3mm jack and screw terminals for bare wire.
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Stable SMT Technology: The use of surface mount technology reduces internal interference and ensures consistent performance night after night.
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Advanced protection systems: Includes DC output protection and a ground lift switch to eliminate annoying ground loop hums, common in places with older electrical installations.
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Precise visual indicators: The front panel features dedicated LEDs for signal, power, and crucially, "Clip" (peak) indicators to visually alert you if the signal is saturating, thus protecting your speakers.
Product benefits
For the professional user, the Vonyx VXA-1200 II offers the peace of mind of a system that simply "works." The inclusion of the Ground Lift switch is a lifesaver at live events, allowing you to isolate the chassis ground and eliminate unwanted noise with a single click. Furthermore, its high damping factor (>250) ensures tight control over the movement of the speaker cones, resulting in more defined and punchy bass, avoiding the "muddy" sound typical of lower-end amplifiers.
Use cases
This amplifier is an ideal all-rounder for:
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Nightclubs and Pubs: As a main amplifier for the room or for specific areas that require high sound pressure.
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Mobile DJs and Disco Mobiles: Its rack format and sturdy chassis make it perfect for continuous transport in flight cases.
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Bass Boost: Using Bridge mode, it is able to power 15 or 18 inch subwoofers with authority.
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Stage Monitors: Excellent for bands that need clear amplification for their floor returns.
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Conference Rooms or Gymnasiums: Where reliable power is required for background music or high-volume voice.
Frequently Asked Questions
Can I connect four speakers to this amplifier?
Yes, as long as the total impedance per channel doesn't fall below 4 ohms. For example, you can connect two 8-ohm speakers in parallel per channel (4 speakers total), which will cause the amplifier to operate at 4 ohms, delivering its maximum stereo power.
What is Bridge mode and when should I use it?
Bridge mode combines the power of both channels into a single mono output. It's ideal when you need to power a single high-power speaker, such as a large passive subwoofer, delivering up to 1200W at 8 ohms.
Does it require special ventilation?
The VXA-1200 II features forced ventilation. If you mount it in a rack, be sure not to block the front or rear vents to ensure proper airflow and maintain optimal temperature.
Project description
Professional 2-channel stereo power amplifier with surface-mount (SMT) architecture for 19-inch (2U) rack installation. Output power specifications are 2 x 600W at 4 ohms, 2 x 450W at 8 ohms, and bridged power capability of 1200W at 8 ohms. Frequency response is 10Hz to 20kHz with a signal-to-noise ratio greater than 90dB and a damping factor >250. Line inputs include RCA and 6.3mm jack connectors. Speaker outputs include NL-4 connectors, 6.3mm jack connectors, and screw terminals. Features include a ground lift switch, LED clip indicators, and DC voltage protection.
