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Adastra Amplifiers

The Adastra amplifier range includes 100V mixer amplifiers with built-in media players, RS and US slave amplifiers for adding power to a 100V line, A-series stereo PA amplifiers for bars and function rooms, IWA in-wall amplifiers, S260-WIFI and S460-WIFI streaming amplifiers, LA Series induction loop amplifiers, and Smart Pack sets that pair an amplifier with matched speakers. Paging stations and a replacement SA-series handheld mic sit here as well.

Choosing Adastra Amplifiers

Decide what the amplifier has to do: mix and play music, add power to a line you already have, run stereo zones, hide in a wall, stream from the internet or drive a hearing loop.

Mixer amplifiers

An Adastra mixer amplifier puts microphone and line inputs and the power stage in one box. Compact choices include the UA Series 953.189UK at 90W; for larger buildings, the RM-series 953.226UK is rated 360W with DAB+, Bluetooth and USB/SD. The SA240 is a lockable wall-mounted mixer amp supplied with a UHF handheld microphone.

Slave and multi-zone amplifiers

A slave amplifier adds power without a mixer of its own. RS Series slaves such as the 953.204UK (480W) take a line feed from a mixer or RM-series mixer amplifier and can cascade onto further RS units, and they also have a 100V input to extend an existing speaker line. The RMS-series 953.152UK has 5 independent 60W channels for zoning a multi-room building, with a paging mic input and a 24V mute terminal.

Stereo, in-wall and streaming

The A2 953.402UK stereo PA amplifier is rated 2 x 200W RMS for music in bars and restaurants. IWA in-wall amplifiers such as the 953.083UK (2 x 30W) install into cavity walls or ceilings, and the S460-WIFI streams to two areas at 4 x 60W under smartphone control.

Hearing loops

For assisted listening, the LA Series 952.864UK and 952.867UK suit rooms of 300m² and 600m², with alarm contacts for a built-in siren and switchable priority on channel 1.

TypeModelOutput
Mixer amplifierUM Series 953.179UK90W, 100V
Slave amplifierUS Series 953.199UK90W, 100V
Stereo PA amplifierA200 953.425UK2 x 100W max
In-wall amplifierIWA 953.085UK4 x 15W
Streaming amplifierS260-WIFI2 x 60W
Loop amplifierLA Series 952.867UK600m² coverage

Related categories

See the full Adastra range, pair an amplifier with Adastra indoor speakers or ceiling speakers, or compare across brands in 100V audio amplifiers, mixer amplifiers and power amplifiers. See also Adastra Megaphones.

Frequently asked questions

What is an Adastra 100V amplifier?

An Adastra 100V amplifier drives a 100V line speaker system, where many ceiling or horn speakers share one long cable run. A transformer tap on the speaker sets how much power it draws. Add up the speaker taps and choose an amplifier with some spare power above that total. The range here includes Adastra line-voltage mixer amplifiers, slave amplifiers and multi-zone models.

What is an Adastra mixer amplifier?

An Adastra mixer amplifier combines a mixer and a power amplifier in one box, blending microphones and music sources before sending them to the speakers. Many models add Bluetooth, USB or DAB+ playback and a paging input. They suit shops, bars, schools and offices that need background music and announcements. The range here includes compact and rack-mount mixer amplifiers.

What is an Adastra amplifier?

An Adastra amplifier is a commercial audio amplifier from Adastra, a UK brand of installed sound equipment for background music, paging and hearing loops. Types include mixer amplifiers, slave amplifiers, in-wall amplifiers and induction loop amplifiers. Choose by the speakers you are driving, the number of zones and the sources you need. The range here includes mixer, in-wall and induction loop amplifiers.

  • Established 1975
  • Birmingham trade counter
  • UK-only supply

Written by the West Midlands Electrics technical team

Updated

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