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Void Acoustics

D1 2-Channel Installation Amplifier, 1000 W @ 2 Ω / 800 W @ 4–8 Ω, Integrated DSP, AES67 Networking

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The Bias D1+ is a two-channel installation amplifier designed to deliver high performance, maximum energy efficiency, and total configuration flexibility. With 800 W per channel at 8 Ω (up to 1000 W at 2 Ω), it supports both Lo-Z and Hi-Z (70V/100V) outputs—even in mixed configurations—making it ideal for any installed sound system.

Its integrated DSP, contro... Read more

The Bias D1+ is a two-channel installation amplifier designed to deliver high performance, maximum energy efficiency, and total configuration flexibility. With 800 W per channel at 8 Ω (up to 1000 W at 2 Ω), it supports both Lo-Z and Hi-Z (70V/100V) outputs—even in mixed configurations—making it ideal for any installed sound system.

Its integrated DSP, controllable via ArmoníaPlus, includes FIR filters, advanced limiters, EQ, delay, and polarity management, with a fixed latency of 2.5 ms and 32-bit floating point processing for pristine audio quality.

Energy efficiency is enhanced by SRM (Smart Rails Management) technology, which optimizes power consumption under all load conditions. A variable-speed fan and passive thermal design ensure reliable operation even in demanding environments, such as UPS-backed or fire safety systems.

Compact (1U), lightweight (7 kg), and equipped with standard Phoenix connectors, the Bias D1+ is perfect for hospitality venues, fitness centers, clubs, event spaces, and professional AV installations.

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Highlights

Advanced integrated DSP

The Bias D1+ integrates an advanced hardware DSP designed to provide precise, secure and fully customizable audio management. Compliant with the IEC 60849 standard, it ensures reliability even in critical applications.

The DSP+ version expands functionality with native support for the AES67 standard, enabling audio routing over IP networks and integration into complex digital systems. Everything is manageable in real time via ArmoníaPlus, for complete control over filters, limiters, signal and diagnostics, even remotely.

Versatile Application, Consistent Performance

Designed to work with lo-Z (from 2 Ω) and 70V/100V distributed lines, any mixed configuration of low and high impedance output loads is possible, making the Bias D1 suitable for all applications in installed sound reinforcement systems.

Intelligent variable speed ventilation

Ventilation is controlled by internal temperature, with front-to-rear airflow for rack mounting.

70V-100V Line
DSP
Eco Friendly
Wireless Control
Fan Controlled by Processor

Product details

Key features

  • 2-channel 800 W per channel amplifier on 8 Ω, also capable of working on 2 Ω loads or bridged up to 2000 W, for maximum flexibility in any system.
  • Ultra-compact construction in 1U rack format, weighing only 7 kg, designed for discreet integration into fixed professional installations.
  • Applications: high impact nightclub, nightclub fill, vip rooms, indoor and outdoor dance events, cruise ships, outdoor, house of worship, large scale touring, stadium arena, bar, club, lounge, hotel, restaurants, live music venues, stage monitoring
  • SRM technology for intelligent rail management, resulting in tangible energy savings and reduced heat generation even in continuous use.

Specifications

  • Number of channels
    2
  • Power rating
    800 watts per channel @ 8 Ω, 800 watts per channel @ 4 Ω, 1000 watts per channel @ 2 Ω | BRIDGE MODE
  • Standard Ethernet
    IEEE 802.3u, Fast Ethernet 100 Mbit/s auto-sensing
  • Supported topologies
    Star
  • Remote Interface
    Armonía Pro Audio Suite™
  • AD Converters
    24 Bit Tandem™ @ 48 kHz, 125 dB-A, THD+N 0.005%
  • DA Converters
    24 Bit Tandem™ @ 48 kHz, 117 dB-A, THD+N 0.003%.
  • Sampling rate converter
    24 bit, 44.1-192 kHz, 140 dB, THD+N 0.0001%
  • Internal accuracy
    32 bits floating point
  • Latency
    2.5 ms (fixed)
  • Preset Memory
    128 MB RAM + 512 MB Flash
  • Delay
    2 s input + 100 ms output for time alignment
  • Equalizers
    parametric IIR (peaking, hi/lo-shelving, band-pass, band-stop, all-pass, hi/lo-pass) | custom FIR | Raised-cosine
  • Crossover
    FIR linear phase | Butterworth | Linkwitz-Riley | Bessel 6 to 48 dB/oct (IIR)
  • Limiter
    TruePower™, RMS voltage, RMS current, Peak
  • Damping Control
    Active DampingControl™ and LiveImpedance™
  • Selectable gains
    26 / 29 / 32 / 35 dB
  • Input sensitivity @ 8 Ω
    4.08Vrms for 26dB / 2.89Vrms for 29dB / 2.04Vrms for 32dB / 1.45 Vrms for 35dB
  • Maximum input level
    20 dBu
  • Frequency response (±0.5 dB)
    20 Hz - 20 kHz
  • Crosstalk (1 kHz)
    Typical -70 dB
  • Signal-to-noise ratio (32 dB gain)
    >109 dB(A)
  • Input impedance
    20 kΩ balanced
  • THD+N (from 0.1 W to maximum power)
    <0.1% (typical <0.05%)
  • DIM (from 0.1 W to maximum power)
    <0.05%.
  • Slew rate
    >50 V/µs (input filter bypassed)
  • Output channels
    2 channels (Hi-Z or Lo-Z, bridgeable)
  • Analog inputs
    2 (Phoenix MC)
  • AES67 digital inputs
    2 channels (1 x RJ45)
  • Output Connectors
    Phoenix PC
  • Dimensions (W x H x D)
    483mm x 44.5mm x 358mm
  • Format
    1U rack
  • Weight
    7.0 kg (15.4 lb)
  • Power Supply Type
    Universal regulated switching with PFC and SRM
  • Rated voltage
    100-240 V ±10%, 50-60 Hz
  • Power factor (above 500 W)
    >0.95
  • Mains connector
    IEC C20 (max 20 A) Region-specific power cord supplied
  • Current draw and consumption
    idle (DSP+D) 23 W (0.34 A @ 115 V / 0.21 A @ 230 V) | 1/8 power @ 4 Ω 267 W (2.5 A @ 115 V) / 274 W (1.5 A @ 230 V)
  • Operating temperature
    -10° - +35° C (14° - 95° F)
  • Cooling
    Variable-speed fan, front-to-rear flow
  • Heat dissipation
    Idle 78-79 BTU/h (≈19.7-19.9 kcal/h) | 1/8 power @ 4 Ω 229-251 BTU/h (≈57.7-63.3 kcal/h)
  • Dissipazione del calore
    Al minimo 78-79 BTU/h (≈19,7-19,9 kcal/h) | 1/8 di potenza a 4 Ω 229-251 BTU/h (≈57,7-63,3 kcal/h)
  • Maximum output current
    45 A peak
  • IP rating
    IP20
  • More Less

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