Bluesound A860 – 8-Channel Commercial Power Amplifier

Product Overview

The Bluesound Professional A860 is a 2U rack-mount, 8-channel power amplifier engineered for commercial AV installations requiring reliable multi-channel audio distribution. It delivers 50W × 8 into 8Ω, 60W × 8 into 4Ω, or 120W per bridged channel pair, making it a capable companion to the Bluesound Professional B400S and B170S streaming players in distributed audio systems. Thermostatically controlled fans maintain reliable operation across commercial deployment conditions, and automatic or remote standby reduces power draw to under 0.5W when the system is idle. Balanced line inputs on all channels suit the commercial-grade wiring standards common in hospitality, corporate, and institutional installations.

Product Description

The A860 is designed to pair directly with Bluesound Professional streaming players such as the B400S or B170S, acting as the downstream amplification stage in rack-based multi-zone audio systems. Balanced XLR-style Phoenix inputs on all eight channels protect the signal path from interference across long cable runs — a requirement in commercial builds with structured wiring. A global balanced input can be routed to multiple outputs simultaneously, and global and local balanced line-level pass-through outputs facilitate daisy-chaining in multi-amplifier installations covering large venues.

Thermostatically controlled low-noise fans activate only when the amplifier's thermal load requires it, keeping the rack quiet during normal operation. Automatic standby triggers after 10 minutes without an input signal (in auto-sense mode), drawing under 0.5W — important for installations that need to meet building energy codes. Manually or remotely triggered standby is also available via the control system. Front-panel indicators show amplifier and per-channel status, giving installers a quick diagnostic view during commissioning or service calls.

Key Features

• 8 Channels of Power Amplification — 50W × 8 at 8Ω, 60W × 8 at 4Ω, or 120W per bridged pair at 8Ω, covering most commercial speaker loads in a 2U footprint.
• Balanced Line Inputs — All eight channels accept balanced Phoenix-connector inputs, providing noise rejection over long cable runs standard in commercial AV infrastructure.
• Global Balanced Input Routing — A single global input can feed multiple output channels, simplifying source routing in large installations without additional signal distribution hardware.
• Pass-Through Outputs — Global and local balanced line-level outputs allow stacking of additional A860 units for systems requiring more than eight amplified channels.
• Thermostatically Controlled Fans — Low-noise fans engage only on thermal demand, keeping rack ambient noise low during normal operation and extending fan life.
• Auto and Remote Standby — Standby draws under 0.5W; auto-sense mode triggers standby after 10 minutes without signal input, and remote triggering integrates with control system power sequences.
• Compact 2U Rack-Mount — Fits standard 19-inch racks alongside Bluesound Professional streaming players, creating a complete commercial audio system in minimal rack space.
• Per-Channel and Global Status Indicators — Front-panel LEDs provide quick status visibility for amplifier health and channel operation during installation and maintenance.

Typical Applications

• Multi-zone distributed audio amplification in hotels, restaurants, and retail spaces
• Corporate boardrooms and all-hands meeting spaces
• House of worship audio distribution for nave, lobby, and overflow zones
• Government and institutional facilities with multiple amplified speaker zones
• Conference rooms and training rooms requiring clean multi-channel amplification
• Companion amplifier for Bluesound Professional B400S 4-zone streaming systems

Technical Specifications

Frequently Asked Questions

Is the A860 designed to work with Bluesound Professional streaming players?

Yes. The A860 is the companion power amplifier for the Bluesound Professional streaming ecosystem. It accepts balanced line-level inputs from the B400S, B170S, or B160S and provides clean multi-channel amplification for passive speaker systems.

Can channels be bridged for more power?

Yes. Pairs of channels can be bridged to deliver 120W into 8Ω per pair, suitable for larger passive speaker systems or longer cable runs in commercial spaces.

How does the standby mode work?

The A860 supports both automatic standby (triggered by absence of input signal above 20mV for 10 minutes) and remote standby via control system trigger. Standby power consumption drops below 0.5W in either mode.

Does the A860 include protection against overload or short circuits?

The A860 includes standard commercial amplifier protection circuitry for overload, short circuit, and thermal conditions. Per-channel status indicators on the front panel alert the installer to fault conditions.

What is the warranty on the A860?

Bluesound Professional products are backed by a manufacturer warranty. Contact Creation Networks at creationnetworks.net for warranty details and support options.