JFL MP F4
- Two channel microphone preamplifier based on a two stage vacuum tube design
- Variable gain from 30dB to 74dB in 4dB steps
- Both input and output are transformer coupled
- Each channel features switchable 48 Volt phantom power, 20dB input pad and phase reverse
- VU meters display output level with OVU reference switchable between +4dBm and +10dBm
- 2RU audio box, with a depth of 10"
- Power supply is housed in a separate box, also 2RU
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JFL MP F6E
- Single-channel Combination Microphone Preamplifier, Compressor, and Equalizer
- Solid-State Design
- Flexible routing, allowing the functions to be used together or separately
- Mic pre offers gain from 24 to 68 dB, switchable 20dB pad, phase reverse, 48V phantom powering, and three frequency highpass filter
- Compressor offers controls for input and output level, ratio, and attack and release times
- Equalizer is a 5-band unit, with six frequency choices per band
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