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Description
STEG MDSP12 +DRC +Bluetooth bundleA 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 input, 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
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 input, 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, Bluetooth 5.0 AptX HD module
- Outputs: 12x Speaker level amplified, 12x RCA pre-outs
- Control connections: 1x USB 1.1/2.0, 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
- 1x B5V2 Bluetooth module
- 1x DRC remote control
- 1x DRC remote control 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
4.1 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Okay for the price!!! Good Quality!!
Color: Green
{Dveracious Shopper:- Just so you know, My reviews won't have fancy videos and photos sometimes but I post honest reviews based on the usability of these products and I did pay my own money to buy these products, so its not a free product review. I use it before I review it as I am committed to provide honest feedback based on the product's usability}
My daughter chose and she is using it on her I pad. I love the functionality of it However not a fan of the removable keyboard, even though some may like it. it protects the I pad and that's what we won't. Has pretty color options too. Fits great.
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Reviewed in the United States on January 20, 2026
★★★★★ 4
Good for the price
Color: Black
I used to have a Smart Keyboard. If you compare it to that (discontinued) or the Magic Keyboard, you’ll be unhappy. But I can’t imagine a better product at this price point.
The good:
• Case is substantial & protective.
• When in use, the iPad stays upright (it rests in 1 of 2 grooves, so angle is mildly adjustable).
• Keyboard is easy to install, & connects quickly when you turn it on (maybe 2 seconds)
• Keys feel good when typing
• Lights are fun (but you can turn them off, if you’re not into that).
• It works great for casual use, & it’s so cheap (I paid $28). In comparison, the Magic Keyboard is $250. If you do a lot of typing though, you want to invest in getting something better.
The meh:
• The case is a bit fiddly to open & get set up, mainly bc the keyboard sits in the center flap when closed, but you have to move it down to the end in order to use it.
• I type about 45 wpm, & it keeps up. There are occasional lags though. If you type fast, I think you’d be frustrated, when you have to stop & retype what it missed.
• It turns off after a couple minutes, to save battery. Which is mildly annoying when I resume typing, & have to retype my sentence bc it needed to wake up. It only takes like 2 seconds, not a huge deal. But bc of this, I def wouldn’t recommend using during lectures or meetings where you have to keep up. For my casual use (maybe a couple hours per week), it works great.
• You have to remember to turn it on & off, to conserve battery. You have to remember to charge it, & to do that you may need 2 charging cords for your iPad. The Magic Keyboard, in comparison, is powered by your iPad. You don’t even need to think about it.
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Reviewed in the United States on December 15, 2025
★★★★★ 5
Good purchase ! I recommend this one
Color: Purple
⭐️⭐️⭐️⭐️⭐️ Stylish, Functional, and Surprisingly Durable — A Great iPad Companion
I’ve been using this purple case with a built-in keyboard for my 9th generation iPad, and I’m genuinely impressed with its overall quality. It hits the mark in several key areas:
🔹 Design & Aesthetics: The color is I purchased was a light purple—elegant without being overly flashy. It adds a pop of personality to my setup, which I appreciate. The stitching and build look well-finished, giving it a premium feel.
🔹 Keyboard Functionality: The attached keyboard connects easy and holds a strong charge. The keys are surprisingly responsive for a compact layout, and the typing experience is smooth and tactile—not mushy like some others I’ve tried. Great for emails, journaling, or casual work on the go.
🔹 Protection & Durability: The case feels sturdy without being bulky. It offers solid protection, especially around the corners, and the iPad feels secure when clipped in. After tossing it into bags and using it daily, it still looks and feels great—no odd flex or signs of wearing down fast
🔹 Touch & Comfort: The material has a soft-touch finish that feels great in the hand. It’s not slippery, and it doesn’t attract fingerprints easily. It also makes it comfortable to use the iPad in different positions—typing, drawing, or watching shows.
🔹 Extras & Usability: I like that the case doubles as a stand and supports multiple angles. The magnetic closure is a nice touch, keeping everything secure when closed.
Overall, this case+keyboard combo offers a lot of value. It’s functional, stylish, and reliable—exactly what I was hoping for. If you’re looking for a practical upgrade that doesn’t sacrifice style or quality, I’d say this one’s worth a look.
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Reviewed in the United States on July 29, 2025
★★★★★ 5
Great Product
Color: Purple
My wife loves this case and serves it purpose well, very durable.
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Reviewed in the United States on June 6, 2026
★★★★★ 5
Pretty Color & Lighting
Color: Pink
I found myself needing a keyboard case for my iPad pro (10.5 inch). I stumbled across this one with great reviews. Once I opened the box it arrived in, it lived up to its reviews. The case feels smooth and appears to have great quality. The keys on the keyboard sound like a typewriter which I love. I was unaware that the keyboard lit up but to my surprise the lighting was extremely bright even in the daylight. The weight of the both the keyboard, iPad, and case all together feels as heavy as a FiveStar notebook. Connecting the keyboard to the iPad was the easiest part because once you pop your iPad in the case and turn on the keyboard and press the connect button you head to the bluetooth settings of your iPad to pair them. Performance wise sometimes the keyboard snoozes after a few minutes of not being used and takes a second to start typing again. Besides that it works great when you’re constantly typing. Overall I love the color of the case and it’s definitely a money spent well.
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Reviewed in the United States on July 6, 2024