Vonyx VXA-800 II - 2x 400W Stereo PA Power Amplifier for 19" Rack
The Vonyx VXA-800 II is a stereo power amplifier designed to deliver robust and reliable performance in professional sound environments. Built using innovative Surface Mount Technology (SMT), this amplifier ensures superior circuit stability, minimizing failures and optimizing audio consistency even during extended use. With versatile power delivery capabilities and a rugged design, it's the ideal solution for fixed installations or mobile setups requiring a durable, high-fidelity audio engine.
Its internal architecture has been optimized to maintain an extremely low noise level, resulting in a clean and powerful signal that preserves the dynamics of the music. Thanks to its wide frequency response, the VXA-800 II reproduces everything from the deepest bass to the clearest treble with great accuracy. Whether powering full-range speakers in a bar or monitors on a small stage, this amplifier offers exceptional value for money in its class.
Main features
This amplifier stands out for its operational flexibility and universal connectivity, allowing it to adapt to almost any existing sound system configuration:
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Power and Operating Modes: It offers 2 x 400W stereo power at 4 Ohms, ideal for most standard PA speakers. It also features a mode switch that allows you to configure it in Bridge Mode , combining the power of both channels to deliver up to 800W at 8 Ohms, perfect for powering passive subwoofers or more demanding systems.
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SMT Technology: The use of surface mount technology ensures a higher component density and better heat dissipation, resulting in a lighter and more durable device that is resistant to vibrations during transport.
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Complete Connectivity: The rear panel features RCA and 6.3 mm jack inputs, facilitating connection to mixing consoles, DJ controllers, or audio interfaces. For speaker output, it offers three options: NL-type locking connectors (compatible with Speakon), 6.3 mm jacks, and screw terminals for bare wire, covering all installation needs.
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Standard Format: Its chassis is designed to be mounted in a 19-inch rack, occupying 2 units in height (2U), which facilitates its integration into professional sound cabinets alongside processors and equalizers.
Product benefits
For the sound engineer or venue owner, the Vonyx VXA-800 II eliminates common amplification worries. The inclusion of front-panel LED clip indicators allows for visual monitoring of signal clipping, helping to prevent distortion and protect connected speakers. Furthermore, the Ground Lift function is an essential tool for eliminating the annoying ground loop hum that often occurs when multiple devices are connected to the same electrical network.
Its DC output protection system adds an extra layer of safety, automatically disconnecting the speakers if it detects harmful DC current, thus safeguarding your speaker investment. Forced ventilation ensures the unit maintains a safe operating temperature, guaranteeing the party won't be interrupted by overheating.
Use cases
The versatility of the Vonyx VXA-800 II makes it suitable for a wide variety of scenarios:
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Entertainment venues: Ideal as a main amplifier for music bars, pubs, cafes and small clubs that need powerful background music or sound reinforcement for the dance floor.
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Mobile DJs and Mobile Discos: Thanks to its light weight and rack format, it is easy to transport in flight cases, providing reliable power for weddings, private parties and corporate events.
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Small Directs: Perfect for stage monitoring or to feed the main PA at acoustic concerts or conferences in medium-sized rooms.
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Fixed installations: Gyms, auditoriums or dance schools that require equipment that can operate for many hours without fatigue.
Frequently Asked Questions
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Can I connect a subwoofer to this amplifier?
Yes, using "Bridge" mode, the amplifier combines its two channels to deliver 800W at 8 Ohms, which is ideal for powering a powerful passive subwoofer.
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What type of speakers should I use?
You can use passive speakers with an impedance of 4 to 8 Ohms. Make sure the speakers' power handling is compatible with the amplifier's output (approx. 400W at 4 Ohms or 300W at 8 Ohms per channel).
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Does the fan make a lot of noise?
The amplifier features ventilation to keep the components cool. The noise level is very low and perfectly suited for live music or music playback environments, being imperceptible when audio is playing.
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Are the output connectors compatible with Speakon cables?
Yes, the NL-type locking speaker outputs are compatible with standard 2- and 4-pole Speakon-style connectors (using poles 1+ and 1-).
Project description
The Vonyx VXA-800 II is a professional 2-channel stereo power amplifier with SMT circuitry for 19" (2U) rack mounting. It delivers 2 x 400W at 4 ohms, 2 x 300W at 8 ohms, and 800W at 8 ohms in bridge mode. It features a frequency response of 10Hz to 20kHz and a signal-to-noise ratio greater than 90dB. Line inputs include RCA and 6.3mm jack connectors, with an input sensitivity of 775mV - 1.2V and an impedance of 20kOhm. Speaker outputs include NL locking connectors, 6.3mm jack connectors, and screw terminals. Additional features include DC output protection, LED indicators for clip and signal, and a ground lift switch. Dimensions: 482 x 295 x 88mm. Weight: 6.95 kg. Power supply 220-240VAC 50Hz.
