ArtSound AMP850

ArtSound AMP850: 8-Channel Power Amplifier or 4 Stereo Zones

The ArtSound AMP850 is a multichannel power amplifier designed for multiroom and multi-zone audio installations. It includes 8 independent channels and can provide sound to up to 4 distinct zones, making it a versatile solution for homes or professional spaces.

Power and Performance

The AMP850 delivers 50 W per channel under a 4-ohm load, capable of powering up to 8 speakers in mono configuration or 4 pairs in stereo. In bridged mode, it offers 150 W per channel under 8 ohms. Its total harmonic distortion is less than 0.1% at 1 kHz for 50 W under 4 ohms. Channel separation exceeds 65 dB at 1 kHz under 4 Ω, and the signal-to-noise ratio is over 90 dB.

Flexibility and Connectivity

The amplifier can independently manage sound in four zones with specific volume and source selection settings for each zone. It features 8 stereo RCA line inputs and 4 RCA line outputs, allowing connection to various audio sources and linking to other amplifiers or active subwoofers. 12V trigger jacks for each zone enable integration into a home automation system.

Installation and Settings

The AMP850 offers several configuration options to suit all types of installations. A selector allows choosing between classic stereo operation, a parallel mode to double the power, or a bridged mode to combine channels in pairs.

An independent gain adjustment per channel is available on the rear panel, providing the ability to finely tune the level of each speaker and thus avoid any risk of saturation. This feature is particularly appreciated in installations with speakers of different efficiencies.

Integration and Association

The AMP850 is designed to easily integrate into a multiroom audio ecosystem. It is an excellent companion for ArtSound streamers and preamplifiers such as the Smart Stream and Smart Zone 4. Paired with these devices, it allows for the simple creation of a multi-room audio system controlled from a smartphone or tablet.

Compatible with a wide range of speakers, the ArtSound amplifier adapts to all types of installations, from the most compact to the most extensive. Whether for sound in an apartment, a house, or even a professional space like a restaurant or hotel, the AMP850 proves to be a wise choice combining power, flexibility, and sound quality.

Key Benefits

• Powerful 8-channel amplifier: 50 W per channel under 4 ohms, 150 W in bridged mode
• 4 independent zones with volume control and source selection
• Comprehensive connectivity: 8 RCA inputs, 4 line outputs, 12V trigger jacks
• Stereo, parallel, and bridged modes for great versatility
• Gain adjustment per channel for optimal speaker adaptation
• Impeccable sound quality: low distortion, wide bandwidth, high signal-to-noise ratio
• Robust design and meticulous manufacturing for unparalleled reliability
• Compact and easy to integrate into a multiroom setup

Technical Specifications

Audio Performance

• Output Power
  • 2 × 50 W per channel at 4 Ω
  • 1 × 150 W per channel in bridged mode (8 Ω)
• Total Harmonic Distortion (THD): < 1% (1 kHz / 50 W / 4 Ω)
• Channel Separation: > 65 dB / 1 kHz / 4 Ω
• Signal-to-Noise Ratio: > 90 dB
• Frequency Response: 20 Hz - 20 kHz (± 3 dB)
• Damping Factor: > 55 (1 kHz)

User Interface

• On/Off Switch
• Operating mode selectors by zone (stereo, parallel, bridged)
• Input gain adjustment potentiometers per channel
• Light-Emitting Diode (LED) indicators
  • Signal presence per channel
  • Clipping per channel
  • Power on

Connectivity

• Inputs: 8 unbalanced RCA connectors (2 per zone)
• Outputs
  • 4 stereo RCA lines
  • 8 12 V triggers (2 per zone)
  • Screw terminals for speakers

Physical Characteristics

• Power Supply: 220-240 V AC, 110-120 V AC (selectable)
• Power Consumption: 600 W
• Dimensions (W × H × D): 430 × 88 × 335 mm
• Weight: 9.5 kg