Features shared by P4S ME, P4S SE, P4S Plus and P4DM Bus Compressor:
• Low noise internal power supply with front panel power switch.
• Black anodized 4mm thick front panels with digital laser printing.
• Elma collet knobs.
• Neutrik XLR and TRS connectors.
• Switchable HPF in the detector signal path.
• 1% 50ppm metal oxide resistors.
• High quality film, ceramic and electrolytic capacitors.
• Dual detector design utilizing True Power Summing for solid stereo field.
• FCS Class A discrete op amp IV and transformer driver.
• 4 layer PC board for low noise operation.
• Transformer coupled inputs and outputs.
• Rear panel side chain inserts
• True hard wire relay bypass.
• Hand built by Roger Foote in California.
• RMS mode.
• Peak A/R mode with variable attack and release.
• Feedback mode for vintage compressor behavior.
• 20 segment LED GR metering.
• 4 THAT laser trimmed VCAs on 2 FCS VCA boards. 2 per channel on P4S ME and P4S SE
• Switched HPF frequencies on P4S ME, P4S SE
• Gain 0 dB to +11.5 dB in 24, 1/2 dB steps on P4S ME and P4S SE
Features for P4S Plus and P4DMS:
• Single THAT VCA per channel on P4S Plus and P4DMS
• High quality potentiometers
• Toggle switches on the P4S Plus
Differences between P4S ME, P4S SE, P4S Plus and P4DMS:
• Threshold -30 dB to +15 dB on P4S SE, P4S Plus and P4DMS
• Threshold -8 dB to +15 dB on P4S ME
• Ratio 1:1 to 8:1 on P4S SE, P4S Plus and P4DMS
• Ratio 1:1 to 4:1 on P4S ME
• Gain 0 dB to +23 dB in 24, 1 dB steps on P4S Plus
• Gain 0 dB to +20 dB in 24, 1 dB steps on P4DMS
• Gain 0 dB to +11.5 dB in 24, 1/2 dB steps on P4S ME and P4S SE
• Metering 1-5 dB in 20, 1/2 dB steps on P4S ME
• Metering 1-10 dB in 20, 1 dB steps on P4S SE and P4S Plus
• Metering switchable between 1-5 dB and 1-10 dB on P4DMS<
• Switched HPF frequencies on P4S ME, P4S SE adn P4S Plus
• Single HPF frequency on P4DMS with HPF connector on rear panel for optional Dual HPF Switcher
• RMS2 & Hard Knee modes on P4S SE
Attack and Release Timings on all P4S and P4DMS compressors:
• Attack: 0.15 to 15.0 ms/Db
• Release: 1.5 to 150 ms/dB