Adastra 1U Mic/Line Rack Mixer – ML432
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Adastra 1U Mic/Line Rack Mixer – ML432
Rack-mountable 1U mixer with 4 mic inputs and 3 auxiliary inputs. Mic channel 1 has 20V phantom power and adjustable voice-over muting of auxiliary channels. An additional priority input can be connected to a line level input or an external 100V line PA system for emergency paging. Output connections are stereo jack with master bass and treble tone controls. Designed as a master or extension mixer for installed sound systems.
This is a practical option if you need a 19 inch with clearly specified features and straightforward compatibility. The details below come from AVSL's current product information, so you can check the connections, size and performance before ordering.
What Is It Actually For?
It is designed for 4 balanced microphone inputs. The remaining features make it useful where you want a tidy, dependable setup without unnecessary complication.
Why Choose This One?
The ML432 gives you a sensibly specified 19 inch from Adastra. It is worth considering when you want the stated specification without paying for features that may not be relevant to your setup.
Who Is It For?
This is aimed at home users, installers, performers, schools, venues and production teams who need a suitable 19 inch. Suitability will depend on the connections and specification your system requires, so those are worth checking carefully.
Key Features
- 4 balanced microphone inputs
- +20V phantom power on paging mic input
- 3 stereo aux line inputs
- Can tap from an existing 100V PA system
- 24Vdc power option
Specifications
| Brand | Adastra |
|---|---|
| Model | ML432 |
| SKU | 953.024UK |
| EAN | 5015972178560 |
| Power supply | 100-240Vac, 50/60Hz (IEC) or 24Vdc (terminals) |
| Fuse | T1AL 250V (mains) or F500mA (24Vdc) |
| Phantom power | +20Vdc (mic1 XLR input only) |
| Inputs : Mic | 4 x balanced 6.3mm jack (+XLR for mic1) |
| Inputs : Aux | 3 x L+R RCA |
| Inputs : priority | Line level (6.3mm jack), 100V (terminals) |
| Outputs | Left + Right 6.3mm jack (unbalanced) |
| Controls | 4 x Mic level, 3 x Aux level, Treble, Bass, L+R output |
| Rear panel controls | Aux muting level, priority input level |
| Input impedance | 2.2k Ohms (mic/line), 10k Ohms (aux) |
| Frequency response : mic | 130Hz - 21kHz |
| Frequency response : line | 120Hz - 26kHz |
| Frequency response : aux | 50Hz - 35kHz |
| Input sensitivity : mic | -50dBV |
| Input sensitivity : line | -19dBV |
| Input sensitivity : aux | -12dBV |
| Signal to noise ratio : mic | 54dB |
| Signal to noise ratio : aux/line | 58dB |
| THD | 0.05% |
| Dimensions | 482 x 130 x 44mm |
| Weight | 1.43kg |
| Packaged weight | 2.2000kg |
| Packaged dimensions | 44 x 44 x 482 mm |
| Country of origin | CN |
| Tariff code | 8519890000 |
What’s Included
- 1 x Adastra 1U Mic/Line Rack Mixer – ML432
Please Note
Please check connections, measurements and compatibility before ordering. Batteries, cables, fixings and accessories are only included where specifically stated in the product description.
Not Sure If This Is Right?
If you are not sure whether this 19 inch will work with your existing equipment, get in touch with the make and model of the equipment you are connecting it to and we will help you check.

