Adastra US Series Compact 100V Slave Amplifiers – US60
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Adastra US Series Compact 100V Slave Amplifiers – US60
100V slave amplifiers built into a half width 1U housing. In addition to RCA line input and output, the US amplifiers have a 100V input on removable screw terminals, which enables the amplifier to be connected in parallel with existing 100V speakers to extend the system. Mono output to either 100V line or an 8 ohm speaker load is connected via a separate removable screw terminal connector on the rear panel. Supplied with rack-mounting hardware which can be configured to mount a single unit against a wall or under a worktop. Designed as a versatile solution for small to medium PA installations.
This is a practical option if you need a compact 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 24V fire alarm mute contacts. The remaining features make it useful where you want a tidy, dependable setup without unnecessary complication.
Why Choose This One?
The US60 gives you a sensibly specified compact 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 compact. Suitability will depend on the connections and specification your system requires, so those are worth checking carefully.
Key Features
- 24V fire alarm mute contacts
- 100V input for connection in parallel with existing 100V speakers
- Supplied with hardware for rack-mounting 2 units
- 100V line or 8 Ohms operation
- Note: Can expand an existing 100V speaker system directly from the speaker cable
Specifications
| Brand | Adastra |
|---|---|
| Model | US60 |
| SKU | 953.196UK |
| EAN | 5015972216583 |
| Power supply | 170-264Vac, 50Hz (IEC) |
| Inputs | Line (RCA), 100V (Euroblock +/-) |
| Amplifier : construction | Class D + transformer output |
| Line output | 2 x RCA (mono) |
| Speaker output | Euroblock terminals: 100V / 8 Ohms / Com |
| Mute | 24V relay contacts |
| THD | <0.4% @ 1kHz |
| Input impedance | 1k Ohms |
| Input sensitivity | -10dB (line) |
| SNR | 80dB |
| Frequency response | 100Hz - 18kHz |
| Packaged weight | 3.1000kg |
| Packaged dimensions | 84 x 84 x 390 mm |
| Country of origin | CN |
| Tariff code | 8518500090 |
What’s Included
- 1 x Adastra US Series Compact 100V Slave Amplifiers – US60
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 compact 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.

