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Description
Adastra MM240 1U Rackmount Mixer-Amplifier: USB, Bluetooth, FM,The Adastra MM240 is a versatile 1U rackmount stereo mixer amplifier equipped with a built in media player, USB audio playback, Bluetooth connectivity, and an FM tuner. Designed for high quality audio mixing and distribution, this unit is perfect for local area background music and announcements, making it an ideal choice for commercial installations and home audio setups. Features Built in Media Player: Supports USB audio playback, FM radio tuning,
The Adastra MM240 is a versatile 1U rackmount stereo mixer-amplifier equipped with a built-in media player, USB audio playback, Bluetooth connectivity, and an FM tuner. Designed for high-quality audio mixing and distribution, this unit is perfect for local area background music and announcements, making it an ideal choice for commercial installations and home audio setups.
Features
- Built-in Media Player: Supports USB audio playback, FM radio tuning, and Bluetooth streaming from smartphones and tablets.
- Powerful Amplification: Delivers 2 x 120W RMS output at 4 Ohms, ensuring robust sound for various applications.
- Multiple Inputs: Features 3 XLR/Jack mic/line inputs with switchable +20V phantom power, and 2 stereo RCA aux inputs.
- Priority Muting: Channel 1 has a variable priority function that automatically attenuates other channels when a signal is detected.
- Compact Design: Rackmountable 1U design fits into standard 19-inch racks, saving space while providing powerful audio capabilities.
Specifications
- Power Supply: 100-240Vac, 50/60Hz
- Fuse: T2AL
- Inputs: 3 x XLR/Jack (bal/unbal), 2 x Aux L+R RCA, 3.5mm jack to media player
- Audio Source: Bluetooth receiver, USB & FM player
- Line Outputs: L+R XLR, Record out (RCA)
- Speaker Outputs: L+R screw terminal (Euroblock)
- Emergency Control: 24V contacts mute all except channel 1
- Phantom Power: +20V (switchable channels 1-3)
- Input Impedance: 2.2k Ohms (mic/line), 10k Ohms (aux)
- Frequency Response: Mic 20Hz - 18kHz, Line 14Hz - 20kHz, Aux 10Hz - 23kHz
- Input Sensitivity: Mic/line -45dBV, Aux/line -10dBV
- Signal to Noise Ratio: Mic 55dB, Aux/Line 60dB
- Dimensions: 482 x 130 x 44mm
- Weight: 1.96kg
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 19 reviews
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Product Reviews
★★★★★ 5
Good
Color: Black, Size: Upgraded Base-1 Panel
It’s goood
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Reviewed in the United States on May 26, 2026
★★★★★ 4
It’s ok.
Color: Beige, Size: Upgraded Base-4 Panel
It works, but not a great product. The cloth is super thin, so do not expect to use it to block noise. Wants to bent and tilt with little effort to make it so. Will not stand straight. It is a good color though.
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Reviewed in the United States on September 24, 2025
★★★★★ 3
Too Short & Skewed Foot. Easy Build & Good Material.
Color: Black, Size: Upgraded Base-1 Panel, Color: Black, Size: Upgraded Base-1 Panel
The 3 partitions I purchased were of good material but were shorter than described and the "feet" on one end of all 3 partitions was skewed a few degrees so I cannot butt them together side by side. PHOTO #1: you see me who is 63.5 inches in my shoes standing next to the 72 inch described partition minus the wheels so it is fair to say it should be 70 inches. But even so, 70 inches minus 63.5 equals 6.5 inches that should be above my head and should not include the tip of the pole and a 6 inch gap below. PHOTO #2: shows the gap when a 90 degree good end is butted against the skewed end. Good material and easy construction but just make it taller and fix the jig that skews the bottom bracket weld.
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Reviewed in the United States on August 19, 2025
★★★★★ 5
Great for “pop up home office”
Color: Grey, Size: Upgraded Base-4 Panel
If you need a space for a video conference in a hurry or to make a private corner for a kiddo to nap in this is a perfect divider that blocks light and separates spaces. It was easy to put together and collapses down to a flat panel for easy storage out of the way.
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Reviewed in the United States on May 23, 2024
★★★★★ 1
It’s a hard no from me
Color: Black, Size: Upgraded Base-1 Panel
I ordered two of these black, single screen panels several months ago. I ordered an additional four I needed a few days ago so I would have the total of 6 that I ended up needing. I did so by clicking on my past order (2 screens) item page and simply placed my recent order for 4 more. Two of the six screens have bolts that don’t fully screw down, such that one of each panel’s four points where the screen attaches to the two legs isn’t fully screwed down and flush. As a result, the screen doesn’t stay entirely vertical -It’s warped askew. Also, 3 of the six screens are different heights than the other 3. It’s clear to me that this company has ZERO QUALITY CONTROL, as there’s not anything that is even adjustable on these screens that leaves room for user error. Additionally, there are four black rubber circles that come in the “parts/screws” bag that don’t have corresponding installation instructions in the instruction manual. Just spend a little more and go with a better quality product somewhere else.
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Reviewed in the United States on March 1, 2025