SF-MA100A

RDL SF-MA100A - 100W Format-A Mixer Amplifier with VCA, Compression and 70V / 100V Output

The RDL SF-MA100A is a professional Class D mixer amplifier delivering 100W RMS constant voltage output at 70V or 100V. It receives three audio channels via RJ45 Format-A and offers three operating modes: local level control, VCA-controlled output level, and VCA control of each mixer input.

Each input (Pair A, B, C) is independently adjustable, with mixing handled locally or remotely using RDL controllers (e.g., D-RLC10KM, D-RC3). The LOOP OUT jack passes Format-A signal and power to additional devices.

A selectable compressor adds up to 15 dB of headroom while maintaining audio transparency through adaptive attack and release times. LED indicators show output level, system status and Format-A voltage integrity.

The SF-MA100A is UL 2043 plenum rated, includes thermal and short-circuit protection, and is housed in a rugged metal enclosure suitable for free-standing, surface or rack mounting. External 48 V DC power supply included.

Functionality:

• output power: 100W RMS - 70V / 100V constant voltage
• 3 x Format-A inputs - Pair A, B, C
• operating modes:
  • local level control
  • VCA-controlled output level
  • VCA control of each input
• LOOP OUT - passes Format-A signal and power
• compressor - adds 15 dB headroom
• LED indicators - output level, status, Format-A voltage
• power supply: external 48V DC (included)

Features:

• compact all-metal construction
• high-efficiency Class D operation
• protection: thermal and short-circuit
• UL 2043 compliant - plenum rated
• suitable for AV, paging, retail, educational and commercial systems

The RDL SF-MA100A is a versatile mixer amplifier for professional AV installations, offering flexible control, high audio quality and reliable performance in demanding environments.