SKU: 14016928288

MiniDSP Flex HTx DSP Processor with eARC - RCA + Balanced

Sale price$764.55 Regular price$849.50
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Description

MiniDSP Flex HTx DSP Processor with eARC - RCA + BalancedThe Flex HTx is the bigger brother of the Flex HT, targeting the need for a multichannel processor with HDMI ARC eARC capabilities and stellar analog and USB audio capabilities. Within a single rack unit, we packed all the possible connectivity we could fit. Eight channel audio input is via analog audio (RCA and TRS), eARC linear PCM over HDMI1, or USB Audio. Additional digital stereo input is supported over SPDIF and TOSLINK optical. Internally, weve

The Flex HTx is the bigger brother of the Flex HT, targeting the need for a multichannel processor with HDMI ARC/eARC capabilities and stellar analog and USB audio capabilities. Within a single rack unit, we packed all the possible connectivity we could fit.

Eight-channel audio input is via analog audio (RCA and TRS), eARC linear PCM over HDMI1, or USB Audio. Additional digital stereo input is supported over SPDIF and TOSLINK optical. Internally, we’ve provided a full suite of miniDSP’s flexible routing and audio processing features: bass management, parametric EQ, crossovers, advanced biquad programming and delay/gain adjustments. In addition, the miniDSP Flex HTx is software-upgradable with full-frequency Dirac Live®, the world’s premiere room correction system.

Continuing miniDSP’s focus on affordable high-performance audio, the Flex HTx features class-leading low noise and distortion figures. An OLED front panel display and volume control/encoder knob provides easy control.

The miniDSP Flex HTx is the perfect solution for a modern compact processor for home theater and multichannel sound.

REMINDER: Please note that the Flex HTx 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 HTx doesn't support bistream format (Dolby/DTS encoded). 
  • 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 @127dB(A), THD+N @ -120dB (0.0001%)
  • Inputs: Stereo digital (SPDIF/Optical), Multichannel USB Audio streaming (up to 7.1)
  • Outputs: 8 channels audio duplicated to unbalanced (RCA) 
  • White/Black OLED front panel controller with IR control
  • Control and configuration by miniDSP Device Console (DC)
  • Rack mountable with removeable rack EARS

 

 

 

 

 

 

Product Downloads

What's in the box?

  • Digital Audio Processor - Flex HTx
  • IR remote v2
  • 12V univeral power supply (UK/EU/US/AU plugs)
  • USB cable  
  • Removeable Rack EARS (1RU)

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

Digital to Analog (input 1 kHz, 0 dBFS) / AES17 20kHz LPF

SINAD & THD+N (%)

Dynamic Range

 

THD+N Ratio vs Frequency

 

miniDSP Device Console (DC)


Flex HTx 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!


 

 



 

Multiway + Dirac Live

miniDSP's multichannel audio processors with Dirac Live room correction can implement advanced multiway active speakers. Any number of "ways" and speakers can be implemented up to the number of output channels. Check out our app note on how to get started!



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

8ch IN (USB/HDMI/Analog) or 2ch IN (Toslink/SPDIF) => DSP =>  8 channels OUT (Analog)

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: 32 – 96 kHz / Supported sample sizes: 16-24bits
WARNING: No onboard Dolby/DTS decoding. Use your source (E.g. TV) to output in PCM mode.

 

Balanced 6.35mm TRS

Unbalanced RCA

Analog Audio Input Connectivity

8 x Balanced TRS

8 x Unbalanced RCA

Analog Audio Input Impedance

200 kΩ

100 kΩ

Analog Audio Output Impedance

300 Ω

150 Ω

Analog Input/Output Max Level

4 Vrms/4 Vrms

2 Vrms/2 Vrms

Frequency Response

20 Hz – 20 kHz ± 0.1 dB

20 Hz – 20 kHz ± 0.1 dB

Digital to Analog (input 1 kHz, 0 dBFS) / AES17 20kHz LPF

SNR

127 dB(A)

124 dB(A)

THD+N / SINAD

-120 dB (0.0001 %) / 120dB SINAD

-117 dB (0.00014 %) / 117dB SINAD

Crosstalk

-132 dB

-120dB

TRS Analog to Analog (input 1 kHz, 4 V RMS) / AES17 20kHz LPF

SNR

120 dB(A)

118 dB(A)

THD+N / SINAD

-114 dB (0.0002 %) / 114dB SINAD

-112 dB (0.00025 %) / 112dB SINAD

Crosstalk

-130 dB

-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 (20 Hz – 20 kHz)

DSP Presets

Up to 4 presets

Dimensions (HxWxD)

41.5 x 429 x 236 mm

Accessories

IR Remote

Power Supply

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

Trigger out

12V trigger out controls external ON/OFF powering of amplifiers, 3.5mm jack

CEC control

HDMI CEC command for Mute/Volume/Standby

Power Consumption

16.5 W (idle)
3.7 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: 14016928288

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Danielle
Lake Worth, US
★★★★★ 4
Fate. She is powerful.
Format: Paperback
“She loves me. And I broke her heart.” (p.246) Fate. She is powerful. She comes from deep historical roots with points of view that range from philosophy (a diverse range of POVs), Psychology and Religion. Here, fate is frequently portrayed as an inescapable, cosmic force that binds Sienna and Jasmine. An inevitable rather than accidental “destined mates” scenario, believed by one, “she just goes with the flow. Wherever fate takes her,” (p.323) and discredited by the other. And yet free will insists on entering the room. Why? Because choices still happened. Some careful. Some reckless. Fate may have guided the path, but Sienna and eventually Jasmine took control. The turbulence mattered. The risk mattered. “Find Sienna. Be with her. Win at life again.” (p.263) And still, despite everything, the plane landed. Jasmine, was shaped early by trauma, a mother’s shame cutting deep as she punished her daughter for refusing the narrow role of a dutiful woman and never letting her forget the cost of that refusal. As a result, Jasmine believed she was lacking, selfish, too egotistical, abandoned heritage, family, and God. Nor would she ever find true happiness in the arms of a woman. Stripped of her creative & artistic soul. Once magnanimous, Jasmine went colorless. Alas, the tormented, detached, aloof CEO Ice Queen. Putting duty, image, and reputation first. Sad. Broken. Lost. Caged. Winter presents the struggle well, a trademark and also draws from other Ice Queen characteristics in previous novels. Sienna the artist, lived for freedom. “A playful fearless spirit, gentle and free, who existed only to roam and learn and embrace new experiences. Someone with an enthusiasm for life and love,” (p.255) reflected sprinkles of Eden (The Villian Series), planted herself within the head and heart of one Jasmine Gemayel. Admired and enamored during her youth, Sienna, as an adult, was fated to melt the Ice. The story that links these two (past to present) is heartfelt and heartbroken. An accidental opportunity, a meeting of artistic minds, a cage, a bird, a sweet memorable dog, a hurtful twist, an awakening, a second chance, and a happily ever after. A recipe for emotional satisfaction.
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Amazon Customer
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★★★★★ 5
Phenomenal!!!
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I wholeheartedly loved this book and look forward to listening to it when the audiobook comes out! The characters are well rounded, flawed, and delicious. The dialogue was incredible and the banter was spectacular. This was a hard book to put down and I didn’t want it to end.
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Elizabeth M. Norman
Alexandria, US
★★★★★ 5
a work of art
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This book is rich in colors, ideas, characters and story line. It gently makes you fall in love with the characters, and slowly reveals the flaws that make them more human and lovable. The story reminds us how important our words are, and how they can change lives, for better, worse, or both. It also reminds the reader of the importance of not forgetting who you are and your passions. Even in the difficult parts, it was a joy to read.. and the ice queen did not disappoint. This writing was a work of art.
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April
Phoenix, US
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Lee always knocks it out the park.
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As always, When She Flies is very well written and the detail is great. I really enjoyed the little nuances in this book. Oliver had to be my favorite with his excitement. It was intriguing to see Ethan grow into more than an antagonist which is what I thought he was going to be. Sienna’s openness and honestly was refreshing and so was Jasmine’s brutal honestly which reminded me of Elena from The Brutal Truth. Overall, I loved this book.
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Percy's mom
Houston, US
★★★★★ 5
Winter strikes again
Format: Kindle
No one writes an ice queen quite like Lee Winter. This book has less of her tongue in cheek humor and is a little more angsty. The main characters meet again by chance, or as Sienna would say, fate. Jasmine only vaguely remembers teenage Sienna, and actually thought she was a boy. Sienna, of course, remembers Jasmine because her influence changed the course of Sienna's life.
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Reviewed in the United States on February 6, 2026

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