VOID Acoustics Bias Q1.5+ | 4-channel Flexible Amplifier with DSP and AES67

High-Performance Amplifier for Professional Audio Applications

The Void Acoustics Bias Q1.5+ Amplifier is a cutting-edge 4-channel DSP amplifier designed to deliver exceptional sound quality and reliability in demanding audio environments. Ideal for use in both low-impedance (Lo-Z) and 70V/100V distributed line systems, this amplifier offers flexible signal routing via AES67 networking and integrates advanced DSP processing with FIR filters and limiters. Featuring Void’s patented Smart Rails Management (SRM) technology, the Bias Q1.5+ maximizes system efficiency and significantly reduces power consumption under any load or usage condition.

This amplifier is the perfect choice for mission-critical applications, such as fire alarm systems, where reliability is paramount. The Bias Q1.5+ is equipped with Phoenix connectors and is compatible with ArmoníaPlus control software, providing access to DSP tools such as delay, EQ, gain, and Void speaker presets. Its lightweight, efficient design ensures low thermal dissipation, reducing the need for external cooling.

Bias Q1.5+ Competitive Differences

• Smart Rails Management (SRM): Maximizes efficiency and drastically reduces power consumption, ensuring optimized performance in any condition.
• Comprehensive DSP Tools: Full suite of DSP features including delay, EQ, input trim, gain, polarity, FIR filters, and limiters for precise sound control.
• AES67 Networking: DSP+ version supports AES67 digital audio networking for seamless integration with other systems.
• Robust Power Supply: Universal regulated switch mode with PFC and SRM, ensuring reliable operation even with a UPS in mission-critical setups.
• Low Thermal Dissipation: Extremely low heat output eliminates the need for extensive cooling, making it energy-efficient.

Bias Q1.5+ Features

• 4 x 600W at 8Ω output, supports Lo-Z (from 2Ω) and 70V/100V distributed lines
• Advanced DSP tools with Void speaker presets, delay, EQ, and more
• Patented Smart Rails Management (SRM) technology for reduced power consumption
• Low thermal dissipation for quieter, more efficient operation
• Phoenix connectors for input/output flexibility
• Compatible with ArmoníaPlus control software for remote operation
• AES67 digital audio networking architecture for expanded signal routing capabilities

Specifications

• Number of output channels: 4 Hi-Z or Lo-Z (bridgeable per channel pair) | Phoenix PC 5/8-STF1-7.62
• Input channels: 4 Analog (Phoenix), 4 AES67 (RJ45)
• Gain: 26 dB, 29 dB, 32 dB, 35 dB selectable
• Input sensitivity @ 8 Ω: 3.54 Vrms, 2.51 Vrms, 1.78 Vrms, 1.26 Vrms
• Max input level: 20 dBu

• AD/DA Converters: 24 Bit Tandem™, 125 dB-A Dynamic Range
• Internal precision: 32-bit floating point
• Latency: 2.5 ms
• Memory/Presets: 128 MB (RAM) + 512 MB flash for presets
• Delay: 2 s (input) + 100 ms (output) for time alignment
• Limiters: TruePower™, RMS voltage, RMS current, Peak limiter
• Equalizer: Custom FIR, parametric IIR, raised-cosine, and more

• Output power @ 8Ω: 600 W per channel
• Output power @ 4Ω: 600 W per channel
• Output power @ 2Ω: 800 W per channel
• Output power @ 100V/70V line: 600 W per channel

• Compliance: Auto-sensing Fast Ethernet (IEEE 802.3u, 100 Mbit/s)
• Remote interface: Armonía Pro Audio Suite™

• Power supply: Universal regulated switch mode with PFC, SRM
• Nominal voltage: 100-240 V, 50/60Hz
• Consumption at idle: 31.1 W (DSP+)
• Operating temperature: -10° to 35° C
• Cooling: Fan with variable speed, front-to-rear airflow

• Dimensions: 483 x 44.5 x 358 mm (19.0 x 1.75 x 14.1 in)
• Weight: 7.0 kg (15.4 lbs)