The miniDSP Flex is the third generation of the compact 2-in, 4-out audio processors, featuring a 400MHz Sharc DSP audio processor and a toolbox for subwoofer or multiway speaker tuning.
It also offers an optional Dirac Live license for room correction and supports Bluetooth streaming with LDAC/APTX/AAC.
With multiple flexible I/O versions available for unbalanced/balanced/digital connectivity, this compact chassis offers superb audiophile specifications for all customers.
The OLED front panel display and volume control/encoder knob make it easy to control, while the powerful floating point processor, digital inputs (USB audio, S/PDIF, and Bluetooth), and advanced audio processing functionality (such as parametric EQ, IIR & FIR filters, crossovers, and delay) ensure optimal performance.
Upgradeable with Dirac Live, the miniDSP Flex is perfect for a variety of applications, including compact digital stereo preamps, subwoofer integration and optimisation, active speakers,
Hardware Features
- Processor: 32-bit floating-point 400MHz Analog Devices SHARC DSP
- Multi-Core USB Audio processor (XMOS)
- Bluetooth streaming: LDAC™/aptX™ HD/aptX™/AAC/SBC
- Optional upgrade to Dirac Live® 3.x Digital Room Correction, Full Range Room Correction (20~20kHz)
- Audiophile performance: SNR@120dB(A), THD+N @ -110dB (0.0003%)
- Inputs: Stereo digital (USB Audio/SPDIF/Optical/Bluetooth), stereo analog (Unbalanced RCA)
- Flexible Output versions: Unbalanced (RCA), Balanced (TRS), Digital (TOSLINK & SPDIF)
- USB audio recording feature (4xCH processed output via USB audio to record inputs, e.g. Vinyl)
- White/Black OLED front panel controller with IR control
- Compatible with miniDSP's Device Console
What's in the box?
- Digital Audio Processor — Flex based on the I/O configuration selected. No Dirac Live license for default configuration
- IR remote v2
- 12V universal power supply (UK/EU/US/AU plugs)
- USB cable
Specifications
Unbalanced RCA version |
Balanced 6.35 mm |
Digital version |
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Digital Signal Processor Engine |
Analog Devices Floating point DSP SHARC ADSP21489 @ 400MHZ |
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Processing resolution / Sample rate |
32 bit/96 kHz (32bit/48 kHz with Dirac Live® license) |
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USB Audio support |
UAC2 Bidirectional Audio - ASIO driver support (Windows) - Plug&Play (Mac/Linux) |
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Input/Output Configuration |
2 channels in / 4 channels out |
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Digital Stereo Audio |
1 x SPDIF on RCA connector |
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Digital Audio Output Connectivity |
4 x Output channels |
4 x Output channels |
4 x Output channels |
Analog Audio Input Connectivity |
2 x Unbalanced RCA |
2 x balanced 6.35 mm |
2 x Unbalanced RCA |
Analog Audio Output Connectivity |
4 x Unbalanced RCA |
4 x balanced 6.35 mm |
N/A |
Analog Audio Input Impedance |
100 kΩ |
200 kΩ |
100 kΩ |
Analog Audio Output Impedance |
200 Ω |
200 Ω |
N/A |
Analog Audio Input / Output Max Levels |
2 V RMS / 2 V RMS |
4 V RMS / 4 V RMS |
2 V RMS / NA |
Frequency Response |
20 Hz – 20 kHz ± 0.1 dB |
20 Hz – 20 kHz ± 0.1 dB |
20 Hz – 20 kHz ± 0.01 dB |
SNR (Digital to Analog) |
120 dB(A) |
121 dB(A) |
D>D: 137 dB(A) |
THD+N (Digital to Analog) |
-110 dB (0.0003 %) ± 3 dB |
-112 dB (0.00025 %) ± 3 dB |
D>D: -130 dB (0.00003 %) |
Crosstalk (Digital to Analog) |
-120 dB |
-128 dB |
D>D: -165 dB |
SNR (Analog to Analog) |
115 dB(A) |
116 dB(A) |
A>D: 115 dB(A) |
THD+N (Analog to Analog) |
-106 dB (0.0005 %) ± 3 dB |
-108 dB (0.0004 %) ± 3 dB |
A>D: -108 dB (0.0004 %) |
Crosstalk (Analog to Analog) |
-115 dB |
-123 dB |
A>D: -115 dB |
Filtering Technology |
FIR + IIR / |
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DSP Presets |
Up to 4 presets |
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Dimensions |
150x180x41 mm |
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Accessories |
IR Remote |
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Power Supply |
Included external switching PSU 12V/1.6A (US/UK/EU/AU plugs) |
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Power Consumption |
9.0 W (idle) |
10.3 W (idle) |
7.5 W (idle) |