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Description
STEG MDSP12 12-channel amplifier with 12-channel DSPA surprisingly compact 12 channel amplifier with a new generation 12 channel DSP. 6 channels of RCA inputs, 12 high level inputs, coax SPDIF input, optical TOSLINK input, Bluetooth AptX HD optional input, optional digital remote control for volume, sub level, preset selection, input selection, mute trigger. 12x50W RMS @ 4 Ohm output channels (at <1% THD+N), 12 channel RCA output, this DSP amp has it all. Perfect for 3 way active front + active rear
A surprisingly compact 12-channel amplifier with a new generation 12-channel DSP. 6 channels of RCA inputs, 12 high-level inputs, coax SPDIF input, optical TOSLINK input, Bluetooth AptX HD optional input, optional digital remote control for volume, sub level, preset selection, input selection, mute trigger. 12x50W RMS @ 4 Ohm output channels (at <1% THD+N), 12-channel RCA output, this DSP amp has it all. Perfect for 3-way active front + active rear amplification with an external subwoofer amplifier or 4 Ohm subwoofer on bridged channels 11 and 12 (yes, these are bridgeable even if undocumented). The powerful multichannel input EQ, time alignment and allpass filtering allows for proper OEM integration. A compact, dense multichannel DSP amplifier with very powerful DSP functionality for full integration in the modern multichannel active systems. Infinitely expandable to use high-end external amps via its 8V RCA outs on every channel - you can also use this DSP amp as a standalone DSP if need be. It's truly an universal all-in-one unit!
The DSP supports the following on every output channel:
- High pass, low pass and band pass crossovers (Linkwitz Riley, Bessel and Butterworth) up to 48 dB/oct
- 31 band fully parametric EQ with +/-15 dB correction, Q-value 0.3 to 15
- 1st and 2nd order Allpass filters with Q control and inversion (each of the 31 EQ bands can be switched to Allpass)
- Time delay up to 15 ms for time alignment, selectable in ms, cm or inches, optional linking of channel pairs
- Phase phase switching between 0 and 180 degrees
- Level correction from 0 to -40 dB, optional linking of channel pairs
- Fully functional input mixer, live mixing of inputs (2 inputs active in parallel), allows the set up of a differential rear fill
- Internal pink noise generator to test each individual output channel
The input of the DSP supports the following corrections on every input channel, including the COAX, TOSLINK and Bluetooth, separately:
- High pass, low pass and band pass crossovers (Linkwitz Riley, Bessel and Butterworth) up to 48 dB/oct
- 10 band fully parametric EQ with +/-15 dB correction, Q-value 0.3 to 15
- 1st and 2nd order Allpass filters with Q control and inversion (each of the 10 EQ bands can be switched to Allpass)
- Time delay up to 15 ms for time alignment, selectable in ms, cm or inches
- Phase phase switching between 0 and 180 degrees
- Level correction from 0 to -40 dB
Configuration software for Microsoft Windows: DOWNLOAD HERE
Manufacturer provided specs:
- Operating voltage: 9-16 VDC
- Standby power: <0.1W
- Frequency response: 20Hz-20kHz
- Output power at 1% THD-N: 12x 50W RMS @ 4 Ohm
- Output power at 10% THD-N: 12x 80W RMS @ 4 Ohm
- S/N Ratio full power A-: 100dB
- Dynamic range: 100dB
- Max input voltage: high level 32Vpp , RCA 6Vpp
- Max output voltage: high level 28Vpp, RCA 8Vpp
- Input impedance: high level 10 Ohm, RCA 47 kOhm
- System sample rate: 96kHz/24Bit
- Start-up time: <5s
- Inputs: 4xRCA analogue, 1x RCA SPDIF coax, 1x TOSLINK SPDIF, 6x high-level, optional Bluetooth 5.0 AptX HD module
- Outputs: 12x Speaker level amplified, 12x RCA pre-outs
- Control connections: 1x USB 1.1/2.0, optional wired remote (DRC)
- 8 full setup presets
- Output signal gain: -40dB to +12dB
- Auto on via high level signal detect or remote input
- Operating temperature: -20~60C
- Storage temperature: -20~85C
- Net weight: 4.2 kg
- Size: 307 x 196 x 50 mm
What's included:
- 1x DSP Amplifier unit
- 5m USB A-B cable
- 2x High-level input harnesses
- 2x Speaker output harnesses
- Mounting brackets and fasteners
- 1x Instructions
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 1509 reviews
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Product Reviews
★★★★★ 3
Decent for the price. Instructions suck but most people should be able to figure it out. More below.
Color: Black, Size: 6 Panel, Color: Black, Size: 6 Panel
SUMMARY:
3 stars from me because it's firmly average. It's fine for the price. Assembly and materials are alright but I can see some caveats depending on your circumstances. Assembly instructions do a subpar job of pointing out some details.
ASSEMBLY INSTRUCTIONS:
Maybe it's because I'm autistic and/or building model kits and assembling stuff is my jam, but I honestly thought people were exaggerating when they were complaining about the instructions and I'd be able to flex my ~superior assembly skills.~ I was wrong! These instructions genuinely suck, and whoever is responsible for making them should be ashamed.
The instructions do a poor job of calling out some details regarding orientation of parts, and some of the images do not actually match the physical parts.
For example, it does not really outline the assembly of the end panels clearly, and I can see someone accidentally using the wrong poles. I've drawn over a photo to show what you should do to try and make it clearer. Additionally, the manual shows a flathead screw for bolting the feet into position, but the actual screw is not a flathead. It also does not point out the counterbore, so if you aren't paying attention you may put the foot pads onto the wrong side of the foot. It's also missing the fact that you need to use another one of the plastic pieces when you finish assembling a panel.
ACTUAL ASSEMBLY & MATERIALS:
To their credit, all of my bags were clearly labeled. The assembly process wasn't difficult. It's mostly just tedious and requires a fair amount of space. I was able to assemble it by myself without any real difficulty. However, the way it's assembled means two things.
One, the fabric parts aren't removable without disassembly. So if you want to use this in an environment where they would require cleaning, I would seriously recommend looking for another option. Or, you could buy this just to use the frame pieces and then somehow buy or make your own fabric pieces designed to be removable with velcro or something.
Two, because of the materials I really don't have a lot of faith in this thing surviving disassembly and reassembly. Like a lot of sorta-cheap-but-convenient furniture, it uses those spring-button connections and plastic inserts with self-tapping screws. Those things are not really meant to be disassembled and rethreaded. It also relies a lot on the tension of the poles and the fabric to keep everything rigid and squared, which I think puts a lot of pressure on the aforementioned buttons, plastic inserts, and the hollow metal rods. So I feel like that will also cause issues with disassembly and reassembly.
Basically once this thing is assembled, it's not really meant to be disassembled. The best you can do is spot-clean the fabric if you need to.
Speaking of the fabric, I didn't see any labels on them or anything in the manual that says what they are, but they feel like some kind of polyester. They generate static electricity pretty easily, and pet hair and debris sticks easily. So that's another downside of them not being easily removable.
For the most part it does seem pretty stable. The poles seem to be pretty uniform in length so they're all making contact with my floor. Obviously this isn't structural so it shouldn't be supporting anything, but the two main feet seem to be doing fine with keeping this thing upright.
CLOSING THOUGHTS:
Really, it's fine for what it is, but it could be better in a lot of little ways and the substandard quality of the instructions just seems unprofessional to me, which is why I'm being so harsh with my rating. Depending on your needs and environment you may want to consider a different option. Preferably one that is made to be disassembled with better materials, and/or one with fabric pieces made to be removed easily.
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Reviewed in the United States on May 28, 2023
★★★★★ 1
Not as it seems
Color: Black, Size: 6 Panel
these are awful... Each individual panel is fine, but when you put it together it can barely stand up, and the clips that hold it together keep popping off. Steer clear of this item.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
As described
Color: White, Size: 6 Panel
Works great in my clinic
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Excellent
Size: 3 Panels, Color: Grey
Very good quality, sturdy, and easy to install. Blocks light very efficiently; non-see-through fabrics. Excellent quality for the price. Highly recommend it.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Sturdy and Very Practical
Size: 6 Panels, Color: Grey
This room divider is sturdy, easy to set up, and looks clean and professional. It provides great privacy and is perfect for separating spaces at home or in an office. I love that it’s foldable and easy to move around when needed. Very good quality and worth the purchase!
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Reviewed in the United States on January 22, 2026