FEL Battery Microphone Amplifier BMA1

A compact, portable, battery powered stereo microphone amplifier for recorders with line input.

Suitable for:
MP3 recorders
Hard Disk recorders
MiniDisk
DAT
DV
PC
Cassette

• A compact portable microphone amplifier for MP3, MiniDisk and other recorders without microphone inputs.
• True variable gain 10 dB to 50 dB
• 3 LED record level guide to help prevent distortion with variable threshold
• Input socket for microphone, 3.5 mm stereo cable mounted Neutrik gold plated, fully screened cable 15 cm.
• Output plug to recorder 3.5mm stereo plug. Moulded to cable, gold plated right-angled fully screened cable, 20 cm.
• Compact light unit, 65 x 103 x 27 mm (2.6 x 4.1 x 1.1 inches)
• Ergonomic case with soft plastic grip.
• Soft touch level control knob with projecting white pointer so you can see and feel where it is pointing.
• Superb quality Burr-Brown Audio op amp
• Approximately 40 hours of operation from an alkaline 9V PP3 battery.
• Flat frequency response, 20 Hz - 20 kHz, - 1 dB
• Low noise (-120 dB)
• Low distortion 0.035% @ 1kHz @-40 dB
• Provides regulated 5 volt plug in power to an attached microphone if required.
• LED power indicator
• Power switch recessed to prevent accidental operation
• Full internal EMI screen to help reduce any electrical and radio frequency interference.
• Low battery indicator - LED will extinguish when battery voltage is lower than 7 volts. The preamp will continue to work but battery change is recommended.
• Separate battery compartment for quick and easy change
• Protected against accidental battery reversal
• Made in England
• Input and output cable length can be to your order, please see ordering information below. Please note we cannot offer refunds on items with custom length leads

What does a microphone amplifier do?

Recorders almost all have a "Line Input" for accepting a signal to record. This line input needs a strong signal, a bit like the signal that comes from a headphone socket.

The signal from a microphone is much smaller and if plugged into the line input will not normally produce an audible result.

Some recorders have a separate microphone input; some do not and require a microphone amplifier/preamplifier to increase the signal level so it can be recorded successfully.

This is what the FEL Battery Microphone Amplifier does.