Q1+ 4-Channel Installation Amplifier, 300 W @ 8 Ω / 600 W Bridged, Integrated DSP, AES67 Networking, 70/100 V Line Compatible
Download product sheetThe Bias Q1+ is a 4-channel installation amplifier designed to offer energy efficiency, compactness, and high sound quality in a lightweight and flexible format. Delivering 300 W per channel at 8 Ω (up to 600 W in bridge mode), it’s ideal for small to medium installations where performance and low consumption are key.
Equipped with an integrated DSP and manag... Read more
The Bias Q1+ is a 4-channel installation amplifier designed to offer energy efficiency, compactness, and high sound quality in a lightweight and flexible format. Delivering 300 W per channel at 8 Ω (up to 600 W in bridge mode), it’s ideal for small to medium installations where performance and low consumption are key.
Equipped with an integrated DSP and managed via ArmoníaPlus software, the Q1+ provides FIR filters, advanced EQ, limiters, delay, and polarity control, all supported by Void-optimised presets. With 2.5 ms fixed latency and 32-bit floating point processing, it ensures accurate and transparent audio management.
Thanks to the SRM (Smart Rails Management) technology, the amplifier operates at peak efficiency in all load conditions, drastically reducing power consumption, thermal output, and environmental footprint. It supports Lo-Z (from 2 Ω) and 70/100 V distributed lines, even in mixed configurations.
Its 1U rack format, low weight, and standard Phoenix connectors make it ideal for AV installations, hospitality venues, retail environments, corporate spaces, and public buildings where performance and design matter equally.
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Highlights
Advanced integrated DSP
The Bias Q1+ 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
Intelligent variable speed ventilation
Ventilation is controlled by internal temperature, with front-to-rear airflow for rack mounting.
Product details
Key features
- 4-channel amplifier with 300 W per channel into 8 Ω, designed to provide reliable performance in compact spaces and with low power consumption.
- Ultra-compact construction in 1U rack format, weighing only 7 kg, designed for discreet integration in fixed professional installations.
- Presets optimized for Void speakers, ensuring maximum sound output and simplified integration into existing systems.
Specifications
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Number of channels4
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Power rating300 watts per channel @ 8 Ω, 300 watts per channel @ 4 Ω, 400 watts per channel @ 2 Ω | BRIDGE MODE
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Ethernet standardsauto-sensing Fast Ethernet (IEEE 802.3u, 100 Mbit/s)
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Supported topologiesStar
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Remote InterfaceArmonía Pro Audio Suite™
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AD Converters24 Bit Tandem™ @ 48 kHz 125 dB-A Dynamic Range - 0.005 % THD+N
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DA Converters24 Bit Tandem™ @ 48 kHz 117 dB-A Dynamic Range - 0.003 % THD+N
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Sample rate converter24 bit, 44.1-192 kHz, 140 dB, THD+N 0.0001%
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Internal precision32 bits floating point
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Latency2.5 ms (fixed)
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Preset Memory128 MB RAM + 512 MB Flash
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Delay2 s input + 100 ms output for time alignment
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Equalizersparametric IIR (peaking, hi/lo-shelving, band-pass, band-stop, all-pass, hi/lo-pass) | custom FIR | Raised-cosine
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CrossoverFIR linear phase | Butterworth | Linkwitz-Riley | Bessel 6 to 48 dB/oct (IIR)
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LimiterTruePower™, RMS voltage, RMS current, Peak
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Damping ControlActive DampingControl™ and LiveImpedance™
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Selectable gains26 / 29 / 32 / 35 dB
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Input sensitivity @ 8 Ω2.48Vrms for 26dB / 1.76Vrms for 29dB / 1.24Vrms for 32dB / 0.88 Vrms for 35dB
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Maximum input level20 dBu
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Frequency response (±0.5 dB , 1 W @ 8 Ω)20 Hz - 20 kHz
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Crosstalk (1 kHz)Typical -70 dB
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Signal-to-noise ratio (32 dB gain)>104 dB(A)
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Input impedance20 kΩ balanced
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THD+N (from 0.1 W to maximum power)<0.1% (typical <0.05%)
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Slew rate>50 V/µs (input filter bypassed)
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Output channels4x channels (Hi-Z or Lo-Z, bridgeable)
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Analog inputs4x Phoenix MC 1.5/12-ST-3.81
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AES67 digital inputs4 channels (1 x RJ45)
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Output ConnectorsPhoenix PC 5/8-STF1-7.62
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Dimensions (W x H x D)483mm x 44.5mm x 358mm
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Weight7.0 kg (15.4 lb)
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Power Supply TypeUniversal regulated switching with PFC and SRM
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Rated voltage100-240 V ±10%, 50-60 Hz
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Power factor (above 500 W)>0.95
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AC Mains connectorIEC C20 (max 20 A) region-specific power cord provided
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Current draw and consumptionidle (DSP+D) 31.1 W (0.45 A @ 115 V / 31.5 W (0.25 A @ 230 V) | 1/8 power @ 4 Ω 227 W (2.1 A @ 115 V) / 251 W (1.4 A @ 230 V)
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Operating temperature-10° - +35° C (14° - 95° F)
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CoolingVariable-speed fan, front-to-rear flow
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Heat dissipationIdle
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Maximum undistorted voltage70 V peak @ 8 Ω
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Maximum output current33 A peak
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IP ratingIP20
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DIM (from 0.1 W to Full Power)< 0.05%
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