Excelente

Loved the configurability of this DSP and its resolution. It stores 4 presets users can switch between either online or using the provided IR remote. The configurations can be done on a connected laptop usb connection and it has multiple items. To writ, input master volume, throgh analog [rca], toslink, or usb. You can export your settings or input from saved settings. You have a PEQ control for each input [2], and for all four outputs. For each output there is several more - crossover filtering with linkwitz-riley 12 24 48db or butterworth 6 to 48db 6db stepped or Bessel 12db/octave. There are FIR filter options you can input (from files) up to 4096 taps. Adjust gains and delays - even use IIR biquad inputs you can make, when using the PEQs. Theres also a Compressor for each output if you want. Highly configurable device. I used it to adjust a closed-box subwoofer for flat output, using a linkwitz transform from 40hz to 20hz with a q of 0.707. Very satisfied

Did not believe the hype about this, until I installed and started tweaking the system. It is not going to happen in 5 minutes, if you spend some time with it, and follow AVS forums and guides related to the DSP, you will definitely hear the difference. The boominess is gone, explosions and other LFE effects certainly seem much better. A worth investment.

I never leave reviews but having worked with many car audio setups and DSPs, DSP amp combos, head units, vehicles, aftermarket, stock etc etc, the miniDSP is the crux of my system now. Using an ATOTO with a S/PDIF to TOLSINK on the miniDSP and the audio quality is flawless. I used to have awful noise in my system and low pre amp voltage but not anymore. my system is OFF quiet when muted and beyond thumping at 75 volume with very low gain. my amp is cold now

This allows me to set digital crossovers as well as have bass management for my preamp that lacks a dedicated subwoofer output. I use it to set an lpf on my subs and a hpf on my mains and eq my dual subs. Well worth the price. I also purchased the Dirac upgrade but found I got better results with REW and Rephase. MiniDsp support is fantastic and answered any questions I had.

Calibrated 2 SVS SB4000 subwoofers with this. EXCELLENT piece of equipment. Must have for multiple subwoofer calibration.

The miniDSP is an amazing audio device that has allowed my Jamo S808 subwoofers to play in tandem with my Kali IN-5 studio monitors. After experimenting with multiple crossover filters and slopes, I finally settled on the mellow roll-off 24db/octave Linkwitz-Riley crossover filters. The revised filter settings allow my Jamo subs to blend perfectly with the Kali's without drawing attention to themselves. The miniDSP offers four presets that can be instantly reconfigured as desired, and once saved to the internal memory of the miniDSP, the presets are available via the (included) remote control. I have used the miniDSP both as a dedicated subwoofer crossover and as a high pass crossover for the Kali's. I did notice a slight loss of resolution with the miniDSP in the signal path vs. running the Kali's directly from the balanced outputs of the Fiio K9 AKM dac/preamp. This is largely due to the superior power supply, dac and analog section in the Fiio. I began to wonder if there was untapped potential waiting to be unleashed from the miniDSP. After doing some research I concluded a high quality linear power supply would be the most logical upgrade path to pursue. I purchased a Fiio/Jade Audio PL-50 (2023 version) linear power supply and aftermarket OCC copper dc umbilical cable. After just a few hours of use, I was stunned at the improvement in sound I was hearing from the miniDSP. I hear increased resolution with a deeper soundstage and zero noise of any kind. Bass impact is amazing now. EDM tracks have never sounded this good on the Kali's. It seems the Fiio PL-50 is the key to unlock the full potential of the miniDSP. You can clearly see in the picture I uploaded how massive the PL-50 linear power supply is vs. the miniDSP's stock wall-wart ac power adapter (sitting inside the copper umbilical cable). I am totally happy now and no longer perceive a slight loss of resolution when running the Kali's directly from the miniDSP's rca analog outputs. The extra $160.00 cost of the PL-50 and OCC umbilical cable is a no-brainer if you seriously want to elevate the performance of the miniDSP 2x4HD.

DSP home theater and bass management haven't got to use it yet

Adding MiniDSP with DIRAC Live software made a big improvement in the overall sound of my stereo system. I tried adding an equalizer, moving the speakers, then replacing the speakers, but could not get a solid bass sound within my budget. Listening to a Darko Audio podcast on room correction convinced me to try this setup. My listening room is an 18' x 24' great room that is shared with other family activities, so adding sound baffles, or other construction modifications was not an option. Setting up and running the Mini DSP with DIRAC took an entire Saturday afternoon, but the results were stunning. A huge improvement in bass quality without any other modifications. Once I learned the setup procedure and got used to the "new" sound, , I re-ran setup for fine tuning, but other than that, it needs no ongoing attention. As the old TV commercials say, "Just set it and forget it."

This made my studio sound so good I cannot imagine making music without it To use it for sound correction you need to purchase another license to use DIRAC software But it is the most useful device in my studio Would def recommend 5/5

I use this inline of my crown amps for home theater. It boost the signal to the amps and it eq and time/phase alignment ability is essential for a multi subwoofer setup. The 2x4 HD is a Big improvement over mini dsp 2x4 and worth the extra money

Great support from the Seller! The minidsp works as it should, and only reason I gave it 4 stars instead of 5 is the unit isn't Bluetooth or wifi for the computer connection.

Bought a Dayton Audio HTA100BT which by itself has an optical (toslink) input but did not provide much tuneability, past the treble and bass (only for the full range L/R speakers). The subs output is just a pass through with no bulb preamps. With the 2x4 HD I was able to tune the entire home stereo using the RAW software and the UMIK-1 microphone. Crossovers (high pass and low pass). Yes, this unit cost more than the 100x2 stereo but, for the small form factor it's a win for me. Also bright the remote when I toggle from TV to a CD player (Alpine head unit lol). Such a versatile unit!! Love this thing!

I like this product for the BEQ/TR ability that AVS Members have developed. It's probably the only real use for it, unless you have the Dirac firmware for it.It's not balanced, but there is a new Flex model for that.2x4HD official plugin just plain old sucks. Only use it when you have to. Otherwise use minidsp-rs from github. Also use ezBEQ for the ease of usage.I wish miniDSP would come up with a better software .. but this does what i need it to do from a hardware perspective. The miniDSP remote control works with it as well, but why, when you have ezBEQ!? Don't bother with a wifi-dg, just use a RPI instead. much better control with minidsp-rs

This review is specifically for the miniDSP 2X4 HD.This is the best price you can get for a 4-channel DSP that has digital inputs and uses an Analog Devices Sharc 400MHz sound processing chip. Along with the supplied software, there is no other product like it at anything like this price.The unit allows for custom generated IIR filters for room equalization or crossover design. But its the only unit at this price that also offers custom FIR filters, allowing for development of zero phase or minimum phase speaker correction filters.The only downside is it takes some technical knowledge to use it at its full potential, along with some filter design software to generate the necessary filters. But its loads of fun to learn on if you're interested! MiniDSP has very good introductions on their website on various software packages you can use to develop these types of filters, which form an excellent introduction.My only concern is that it won't be available much longer -- the manufacturer has discontinued other great devices that had these features and more, and has recently come out with a new product with similar features to this product, plus a few extra bells and whistles, which is double the price. Logically, they may well discontinue the 2X4 HD at some point, so get one now if you're considering it!

steve morgan

Well developed tool for calibration of home theater systems

Not using this for EQ of my subs. Only using it for BEQ with movies. If you have home theater and have one of these you need BEQ. It's even better than messing with REW and taking measurements. AVS forums explains all the details but it's super simple to deploy on these mini dsp units. My Subwoofers are on a whole new level now and only took 5 minutes to setup with no umik needed. Highly recommend

It's not really straight forward but there are several walkthroughs on YouTube that are easy to follow. I cleared up some nulls in my room pretty quickly.

Great value to tune multiple subs for a home theater. Definitely made a difference using the MiniDSP with REW and a UMIK1.