MiniDSP Flex HT DSP Processor with eARC
SKU: 87123759078

MiniDSP Flex HT DSP Processor with eARC

Sale price$494.55 Regular price$549.50
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Description

MiniDSP Flex HT DSP Processor with eARCThe Flex HT is miniDSPs answer to our customers looking for a pocket sized multichannel processor with HDMI ARC eARC capabilities . Our team was able to cram a full eight channels of DSP power and a wide range of I O into the unbelievably compact enclosure. Eight channel audio input is via eARC linear PCM over HDMI, or USB Audio. Additional stereo input is supported over SPDIF and TOSLINK optical. Internally, weve provided a full suite of miniDSP

The Flex HT is miniDSP’s answer to our customers looking for a pocket sized multichannel processor with HDMI ARC/eARC capabilities . Our team was able to cram a full eight channels of DSP power and a wide range of I/O into the unbelievably compact enclosure.

Eight-channel audio input is via eARC linear PCM over HDMI, or USB Audio. Additional stereo input is supported over SPDIF and TOSLINK optical. Internally, we’ve provided a full suite of miniDSP flexible’s routing and audio processing features: bass management, parametric EQ, crossovers, advanced biquad programming and delay/gain adjustments. In addition, the miniDSP Flex HT is software-upgradable with full-frequency Dirac Live®, the world’s premiere room correction system.

The eight-channel analog RCA outputs feature class-leading low noise and distortion figures. Last but not least, the Flex HT is miniDSP's first product to include WiSA (“Wireless Speaker and Audio Association”) capability as an optional feature(future). WiSA is designed specifically for low-latency multichannel audio – a perfect match for the Flex HT. The WiSA transmitter will allow lossless transmit of all eight output channels to WiSA-compatible speakers and subwoofers. Note that WISA feature will be a hardware option on future shipments (ETA Q1 2024) and isn't included at this point of time. 

The miniDSP Flex HT is the perfect solution for a modern compact processor for home theatre and multichannel sound. You just need to let your creativity do the rest!

REMINDER: Please note that the Flex HT does not support bitstream (e.g. Dolby/DTS) decoding. The audio source must be able to output linear PCM (LPCM) for multichannel support over HDMI. 

Hardware Features

  • Processor: 32-bit floating-point 400MHz Analog Devices SHARC DSP
  • Multi-Core USB Audio processor (XMOS)
  • HDMI EARC/ARC interface for multichannel audio in PCM. Note that Flex HT doesn't support bistream format (Dolby/DTS encoded). 
  • Optional WISA (Future option / ETA Q1 2024): Multichannel (8ch) low latency, synchronized, Wireless audio. Compatible with compliant Wisa speakers. 
  • Optional upgrade to Dirac Live® 3.x Digital Room Correction, Multichannel (8ch) Full Range Room Correction (20~20kHz)
  • Audiophile performance with very low noise floor and distortion (SNR @128dB(A), THD+N @ -111dB (0.0003%)
  • Inputs: Stereo digital (SPDIF/Optical), Multichannel USB Audio streaming (up to 7.1)
  • Outputs: 8 channels audio duplicated to unbalanced (RCA) and WISA Wireless audio. 
  • White/Black OLED front panel controller with IR control
  • Control and configuration by miniDSP Device Console (DC)

 

 

 

Product Downloads

What's in the box?

  • Digital Audio Processor - Flex HT
  • IR remote v2
  • 12V univeral power supply (UK/EU/US/AU plugs)
  • USB cable  

Optional Items

NOTE: The UMIK-1/2 are measurement microphones approved by Dirac Research. Knowing the major effect a wrong calibration/measurement would have on the final results of Dirac Live tuning, we strongly recommend that you select a UMIK-1/2 microphone together with your platform for a plug&play experience leading to best results. Any issues related to 3rd party microphones such as ASIO/USB audio driver incompatibility/Latency problems or incorrect calibration process will not be under our support structure by our support team. 

Audio Precision APX555 measurements

 Here are few measurements of the Flex HT (Digital IN, Unbalanced RCA out) for THD+N/SINAD/Dynamic Range with DRE enabled & THD+N


miniDSP Device Console (DC)

Flex HT leverages miniDSP Device Console (DC), our newest real time control interface with free Over The Air (OTA) upgrades for software and firmware upcoming enhancements. 

 

Application Notes

 

The Perfect Apple TV companion

The Apple TV 4k is the perfect streaming partner for the miniDSP Flex HT and Flex HTx. Combined with an eARC-enabled TV, a modern compact A/V system with Dirac Live®, the world's premiere room correction system, has never been easier to set up!

 

 



Specifications

 

Description

Digital Signal Processing Engine

Analog Devices Floating point SHARC DSP: ADSP21489 @ 400MHZ

Processing resolution / Sample rate

32 bit/48 kHz

USB Audio support

UAC2 Audio - ASIO driver provided (Windows) - Plug&Play (Mac/Linux)
Multichannel USB Audio interface (8ch) for up to 7.1 configurations / 32bit / 44.1~96kHz

Input/Output DSP structure

8h IN(USB/HDMI) or 2ch IN(TOSLINK/SPDIF) => DSP =>  8 ch OUT (Analog & WISA outputs)

Digital Stereo Audio
Input Connectivity

1 x SPDIF (stereo) on RCA connector,
1 x OPTICAL (stereo) on Toslink connector
Supported sample rates: 20 – 216 kHz / Stereo source will be automatically assigned to Input 1&2

HDMI connectivity

ARC/EARC compliant for up to 8ch of LPCM audio streaming
Supported sample rates: 20 – 96 kHz
WARNING: No onboard Dolby/DTS decoding. Use your source (E.g. TV) to output in PCM mode.

WISA (Wireless Audio)

(Future Option) 
8 channels outputs via low latency, uncompressed & tightly synchronized audio via WISA protocol
24bit/48kHz, 5.2ms Fixed latency, +/-2µS synchronization, 5GHz spectrum

Digital Audio Output Connectivity

Not Applicable

Analog Audio Output Connectivity

8 x Unbalanced RCA

Analog Audio Output Impedance

200 Ω

Analog Output Max Level

2 V RMS

Frequency Response

20 Hz – 20 kHz ± 0.05 dB

SNR (Digital to Analog)

125 dB(A) with DRE enabled

THD+N (Digital to Analog)

-111 dB (0.0003 %)

Crosstalk (Digital to Analog)

-120 dB

Filtering Technology

miniDSP DSP toolbox (routing, bass management, parametric EQ, crossover, gain/delay).
Optional software upgrade to multichannel Dirac Live® 3.x Full Range correction (20Hz ~ 20 kHz)

DSP Presets

Up to 4 presets

Dimensions

150x180x41 mm

Accessories

IR Remote

Power Supply

Included external switching PSU 12V/1.6A  (US/UK/EU/AU plugs)

Trigger out

12V trigger out controls external ON/OFF powering of amplifiers

CEC control

HDMI CEC command for Mute/Volume/Standby

Power Consumption

4.8 W (idle, Wisa OFF), 6.5W (idle, Wisa ON)
2.9 W (standby)


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 87123759078

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David Pearl
Alexandria, US
★★★★★ 5
Effective & Attractive with Wireless Charging
Color: Blue, Color: Blue
This "valet" organizer, which is the first time I've heard that term for a product like this, is nearly perfect. For me, it checks all of the boxes and in a perfect world, I would have opted for a smaller piece with only three compartments for mobile, wallet, and keys. It's well made and quite attractive, especially the blue (favorite color, so I'm biased). The only feature I'm not a fan of is how the removeable, wireless charging pad was implemented, which sits up on a small lip at a slight incline. However, I'm not complaining one bit as the wireless charging is great, and it's a differentiator that determines the value of the piece. I would have preferred the pad be built into the piece, however the angle of it does make it easy to grab opposed to using your finger(s) to pry it up.
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Reviewed in the United States on September 8, 2024
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Devon Edgerton
Phoenix, US
★★★★★ 5
Great nightstand valet for everyday items.
Color: Black+Green
Nice valet to add to a nightstand. Conveniently spaced sections to hold everyday items. Charging pad works great
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Reviewed in the United States on April 26, 2026
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Christine
San Leandro, US
★★★★★ 4
Power Adapter Not Included
Color: Brown +Wireless
I'm initially impressed with this valet tray. I purchased two for my husband: one for his nightstand and one for his dresser, as he likes to keep things organized. We liked the idea of the wireless charging capabilities, but were a little disappointed to discover that the power adapter (wall plug) is not included with the tray. The tray includes a charging pad and a cord, but no wall plug. We don't have an extra pair in the house, so we'll have to wait until a pack arrives before we can test out the charging capabilities. That aside, the trays are a handsome set. I think 20% larger might serve us a tad better, but this will do very nicely for now. We're able to fit almost everything we need in the tray and that will leave the tables looking much tidier, even if one or two items don't quite make it in.
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Reviewed in the United States on October 20, 2025
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A Kisinger
Battle Creek, US
★★★★★ 5
Great organization and a charger too!
Color: Blue
Pros: charge pad works well to charge not only phones but watches as well,materials are quality and the blue color is very appealing. Fits well on the night stand and has great sized compartments for items to stay organized. Cons: none that I can note
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Reviewed in the United States on October 10, 2025
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Alisha French
Boise, US
★★★★★ 5
3 year anniversary is leather
Color: Brown +Wireless
I bought this for our third year wedding anniversary, as a gift for my husband. The 3rd year is supposed to be a gift inspired by leather. The tray is very durable and has lots of compartments. My husband uses it on his nightstand to keep things that he has in his pocket when he empties them the end of the night. The wireless charger is very convenient, although he prefers to actually plug in his phone rather than wirelessly charge it. The charger cable itself is surprisingly of great quality. The leather isn’t too bad either. Good gift for the price point.
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Reviewed in the United States on July 29, 2025

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