SKU: 23127071564

MiniDSP Flex DSP Processor Ideal For Subwoofer Correction + Speaker Tuning

Sale price$404.55 Regular price$449.50
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Description

MiniDSP Flex DSP Processor Ideal For Subwoofer Correction + Speaker TuningThe 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

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
TRS jack version

Digital version

Digital Signal Processor Engine

Analog Devices Floating point DSP SHARC ADSP21489 @ 400MHZ

Processing resolution / Sample rate

32 bit/96 kHz (32bit/48 kHz with Dirac Live® license)

USB Audio support

UAC2 Bidirectional Audio - ASIO driver support (Windows) - Plug&Play (Mac/Linux)

Input/Output Configuration

2 channels in / 4 channels out

Digital Stereo Audio
Input Connectivity

1 x SPDIF on RCA connector
1 x OPTICAL on Toslink connector
1 x USB audio (stereo)
1 x Bluetooth with support for: LDAC™/aptX™ HD/aptX™/AAC/SBC
Supported Sample Rate: 20 ~ 216 kHz

Digital Audio Output Connectivity

4 x Output channels
(Post DSP)
on USB Audio

4 x Output channels
(Post DSP)
on USB Audio

4 x Output channels
(Post DSP)on USB Audio and
SPDIF& TOSLINK (duplicated)

Analog Audio Input Connectivity

2 x Unbalanced RCA

2 x balanced 6.35 mm
TRS jack (as XLR)

2 x Unbalanced RCA

Analog Audio Output Connectivity

4 x Unbalanced RCA

4 x balanced 6.35 mm
TRS jack (as XLR)

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 / 
Optional Dirac Live® 3.x Full Range correction (20~20kHz) 

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)

Power Consumption

9.0 W (idle)
2.5 W (standby)

10.3 W (idle)
3.1 W (standby)

7.5 W (idle)
2.5 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: 23127071564

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Lonni W
Charlottesville, US
★★★★★ 3
below average value but decent quality on this 95.4% Polyester, 4.6% Spandex dress shirt
Special Size: Black Buttons, Size: Large, Color: Sky Blue, Special Size: Black Buttons, Size: Large, Color: Sky Blue
At $20 when I picked this up, it was overpriced for what it was. I'm held accountable to the value assigned to me at the time I select to review it, so I review the value based on what was assigned not on what it later becomes if they discount it. As I write this I can see it is in a value range it should have been for me, but I'm still reviewing it at the $20. That's overpriced on a 95.4% Polyester, 4.6% Spandex shirt (i.e., non-cotton) and so the value here is a 1/5 or 2/5, say 1.5/5 for it. In terms of quality, this is a poly dress shirt. Still, I'd call this a 4/5 for what it is. The standard is cotton, and in my experience, as someone in ties and collared shirts all day, I would note that I do prefer a 95 cotton/5 spandex blend, with the challenge that its not the most wrinkle free material. This blend, 95 poly/5 spandex, is a very wrinkle free and smooth feeling material. Poly has better durability than cotton despite feeling thinner, because it won't fray as much. That said, even though it's lightweight, poly will make you hotter because it doesn't breathe like cotton. It feels light, so you think it is going to be cooler, but in practice actually isn't really if it's a hot day. It can make you sweat more. That said, many people like poly blends for the ease of maintenance. I've given up dry cleaning, just too much, and I do like to avoid an iron, so I tested this out because of it. For me this fit well. I ordered a large (typically I prefer to wear a 16.5/34/35, and I'm 5'11, 185) and this fit well. It's not a slim fit (tapered bottom) for those who might complain about extra material. But it fit well. I put it through both the wash and dryer. It did not shrink (poly usually doesn't) to be out of size, but was fine, and of course came out without wrinkles. The collars have no stays, these poly shirts hardly ever do, but I have found they mostly remain flat, since the material doesn't tend to wrinkle, and thus my points stay in place just fine. At a 1.5 on value and a 4 on quality, this is a 2.75/5 average for me. Again, value plays a big part for me. So, full disclosure a better value would have raised my rating on this. But hopefully, based on what I covered above, you have enough to figure out if this shirt is worth it to you or not.
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Reviewed in the United States on March 2, 2026
G
Verified Purchase
Getahun Wuneh
Dallas, US
★★★★★ 5
Thev quality and size
Special Size: Black Buttons, Size: Large, Color: Grey
It's good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
A
Amazon Customer
Lake Worth, US
★★★★★ 5
Nice dress shirt
Special Size: Black Buttons, Size: Large, Color: Grey
This shirt is a super soft and an awesome style, which I really love. The material is a soft cotton and that doesn’t irritate my skin. It is breathable, but also keeps you relatively warm. It’s very nice looking on and would be okay for everyday wear. It has been used many times going out with jeans or shorts out. I wash and dry it regularly in a machine and still looks just as new as the out of box condition. There is no pilling, fabric change, or shrinking. The style is flattering, cut well, and runs true to size. Other shirts owned feel similar to this one, which meets expectations and is a nice shirt for the price. I do wish it had a pocket though. Ultimately would purchase again.
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Reviewed in the United States on April 7, 2026
A
A.T.
Belleville, US
★★★★★ 5
Sharp-looking business shirt at a great price
Special Size: Black Buttons, Size: X-Large, Color: Rhine Blue
This long sleeve dark blue shirt is a great choice for a business casual look. The "Rhine Blue" color really stands out — it’s very bold without being over the top, and it gives the shirt a sharp, polished appearance. The stitching is very well done, with clean lines and no loose threads, which adds to the overall quality. It fits nicely and maintains a crisp look throughout the day. The material is mostly polyester with some spandex, so it feels smooth, lightweight, and is actually breathable. It stays comfortable during long wear and doesn’t feel heavy or restrictive. Overall, it’s a sharp, well-made shirt that delivers both style and comfort at a great level. It was a good deal at the original price of about $20, but at the new price of about $15, it's an excellent deal. I may get another in a different color.
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Reviewed in the United States on March 29, 2026
V
Verified Purchase
Valerie Jones
Belleville, US
★★★★★ 5
Very comfortable and looks great!
Size: X-Large, Color: Navy Blue, Size: X-Large, Color: Navy Blue
This shirt is surprisingly really nice for the price. Really nice even regardless of the price. It fits and looks great on my hubby. We liked it so much that I bought him another one in a different color. Will probably even buy more. The large ran a little small, so we got him an extra large and it was great.
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Reviewed in the United States on February 6, 2026

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