Adastra RMC Series Mixer Amplifier with CD, DAB, Bluetooth & USB

The Adastra RMC Series 100V Mixer-Amplifier is a comprehensive commercial sound solution combining a 5-channel mixer with a built-in CD player, DAB+/FM tuner, Bluetooth 5.0 receiver, and USB/SD media player — all in a single 19" rack-mount unit.

Available in 120W and 240W output variants, it is designed to drive 100V line speaker systems or low-impedance 4–16 Ohm speaker loads, making it suitable for a wide range of commercial installations including restaurants, retail environments, hotels, schools, and leisure facilities.

The amplifier section uses a Class AB design paired with a digital switch-mode power supply and a 100V transformer, delivering reliable, energy-efficient power output. Both mains (170–264 Vac) and 24 Vdc operation are supported, giving flexibility for installations with backup power requirements.

Five input channels cover a balanced XLR microphone input with switchable +20V phantom power and Vox override, two mic/line jack inputs, and two RCA line inputs. A rear-panel Vox switch allows background music to be ducked automatically when the mic input is active, keeping announcements clear without manual intervention. An optional remote control (SPR000708) is available separately.

• Built-in CD Player: A slot-feed CD player is included alongside USB/SD and Bluetooth playback, so the system handles virtually any audio source without additional equipment.
• DAB+ and FM Tuner: Receive digital and analogue radio stations directly through the unit, removing the need for an external tuner.
• Bluetooth 5.0: Wirelessly pair a smartphone or tablet for convenient audio streaming without cables.
• 100V or 4–16 Ohm Output: Compatible with both 100V line speaker systems and standard low-impedance speakers, giving flexible installation options.
• Phantom Power and Vox Override: The XLR mic input supports condenser microphones via switchable +20V phantom power, and the Vox function automatically lowers background music during announcements.
• Class AB Amplifier with Switch-Mode PSU: Efficient power delivery with low distortion (THD under 1%) across the full output range.
• 19" Rack Mountable: Supplied with rack-mount ears as standard, ready to drop into a standard equipment rack.

• Brand: Adastra
• Model: RMC120D / RMC240D
• Output Power (RMS): 120 W / 240 W
• Speaker Outputs: 100V / 4–16 Ohms / COM terminals
• Inputs: 1 × XLR mic (balanced), 2 × mic/line jack, 2 × RCA line
• Input Sensitivity (Mic 1): -53 dBV
• Input Impedance (Mic 1): 5k Ohms
• Input Sensitivity (Line): -15 dBV (-18.5 dBV line 5)
• Input Impedance (Inputs 2–5): 1k Ohms
• Line Output: RCA
• Phantom Power: +20V switchable (XLR mic input 1)
• Bluetooth Version: 5.0
• Audio Sources: Slot-feed CD player, DAB+/FM tuner, USB/SD player, Bluetooth receiver
• Equaliser: Bass 100 Hz ±10 dB / Treble 10 kHz ±10 dB
• THD: <1.0%
• Mains Power Supply: 170–264 Vac, 50 Hz (IEC)
• DC Power: 24 Vdc (screw terminals)
• Fuse: T3.15A
• Rack Format: 19" rack mountable (ears supplied)
• Dimensions (W × H × D): 433.0 × 89.0 × 320.0 mm
• Weight: 7.0 kg (120W variant)

• 1 x Amplifier
• 1 x Power Lead