miniDSP Flex Eight Audio Processor


The miniDSP Flex Eight is the 2 in / 8 out version of miniDSP’s popular Flex family of compact, high performance audio processors.

Free next day delivery.

The miniDSP UMIK-1 and UMIK-2 calibrated omnidirectional USB microphones are ideal for taking measurements with Room EQ Wizard or Dirac Live. UMIK-1 measures frequencies up to 24 kHz. With its larger capsule and higher sample rate, UMIK-2 reliably measures frequencies up to 96 kHz.

Need some help? Call 0161 399 0993 or contact us. We are happy to answer any questions you have.

Seen it cheaper elsewhere? Request a price match.

Brand: miniDSP Category:


The Flex Eight is the 2 in / 8 out member of the miniDSP Flex family of advanced audio processors. miniDSP’s flexible hardware architecture has enabled them to cram a full eight channels of digital signal processing (DSP) and a world-class analogue output stage into the Flex Eight’s compact enclosure.

With multiple digital inputs and eight RCA analogue output channels, the miniDSP Flex Eight can be used to implement crossovers for a pair of four way active speakers, integrate six subwoofers with a pair of stereo speakers or whatever else you can imagine. Flexible 2 in / 8 out signal routing supports many other configurations such as two way, three way and multiple subwoofers. As always, a full suite of miniDSP’s proven audio processing functionality is included. miniDSP Flex Eight offers FIR filters and parametric EQ on the input channels, and parametric EQ, crossovers, advanced biquad programming and delay on each output channel. 

Flex Eight has USB audio, S/PDIF (RCA and optical) and Bluetooth (LDAC / aptX) stereo digital inputs. An OLED display and volume control / rotary encoder on the front panel provides easy control, and an infrared remote control handset is included for even greater convenience. Last but not least, firmware updates are delivered over the Internet via the new Device Manager app for macOS and Windows, and you can add two channel Dirac Live® full range room and speaker correction by purchasing an optional licence.

The miniDSP Flex Eight is the perfect solution for a modern compact integrated active speaker or multiple subwoofer system. You just need to let your creativity do the rest.

  • 32 bit floating point 400 MHz Analog Devices SHARC digital signal processor
  • Multi-core XMOS USB audio processor
  • 2 input channels and 8 output channels
  • Optional upgrade to Dirac Live® 3.x full range digital room correction
  • Audiophile performance with very low noise floor and distortion
  • USB, coaxial and optical digital inputs
  • Bluetooth input with LDAC™ and aptX™ HD
  • RCA analogue outputs
  • USB recording option
  • OLED front panel display, rotary encoder and remote control

Additional information




Audio Inputs

1 x coaxial digital RCA, 1 x optical Toslink, 1 x USB type B, Bluetooth

Audio Outputs

8 x analogue RCA


400 MHz Analog Devices SHARC DSP


White OLED display

Dimensions (WxDxH)

150 x 180 x 41 mm

Documents and downloads

Flex Eight product brief

Flex Eight user manual

Flex Eight Dirac Live user manual

Frequently Asked Questions

miniDSP audio processors offer a lot of flexibility and not every possible use case requires taking measurements with a microphone. However, if you are going to use your miniDSP processor for room correction, subwoofer integration or as an active crossover for your speakers, then you are going to want to take some measurements using software like Room EQ Wizard (REW) or Dirac Live.

miniDSP’s UMIK-1 and UMIK-2 omnidirectional USB measurement microphones work perfectly with REW, Dirac Live and most other measurement software. Both models come with individual calibration files for horizontal and vertical placement, to provide highly accurate measurements in either orientation.

The lower cost UMIK-1 microphone has a sample rate of 48 kHz. This allows it to measure audio frequencies up to 24 kHz. It covers the entire audible band and provides more than enough bandwidth for subwoofer integration or room correction duties, where attention is mostly focussed on the low frequencies.

For those who want to understand the behaviour of their speakers or room beyond the audible band and into the ultrasonic, miniDSP offers the UMIK-2. UMIK-2 is equipped with a larger, more sensitive microphone capsule and a higher end analogue to digital converter, which provides a maximum sample rate of 192 kHz. This enables UMIK-2 to reliably measure frequencies up to 96 kHz (two full octaves more than UMIK-1).

Your miniDSP Flex Eight Audio Processor will normally be delivered in 2-3 days.

Delivery is free on orders over £100. We deliver anywhere in the UK using premium tracked delivery services from DPD Local, UPS, TNT and Royal Mail.

When you by a product from us, you will have 30 days to decide whether or not you want to keep it. If you decide to return it for any reason, even if you just changed your mind, it will not cost you a penny. Just let us know that you want to return it and we will take care of the rest.

We will agree a collection date with you and send you a pre-paid shipping label for the return trip. You can have full refund or you can try something else instead. It is up to you. All we ask is that you take good care of the product, along with any accessories and packaging, while you are deciding whether or not to keep it.

We accept all major credit and debit cards, including Mastercard, Visa and American Express. We also accept Apple Pay and Google Pay. Payments are securely managed by industry leading payment processor Stripe and protected by SSL encryption. We will not store your card number or other payment information.


There are no reviews yet.

Be the first to review “miniDSP Flex Eight Audio Processor”

Your email address will not be published. Required fields are marked *

You may also like…