John East P-Retro Preamp
An awesome preamp for your P-bass. Easy to install. Works as it should.
Summary of features for the P-Retro:
• Two Stacked knobs, both with Pull Switches.
• Original pure P style bass controls fully retained via passive path, using a high quality relay bypass.
• Class A FET input stage.
• Flat response active setting.
• Variable frequency mid boost mode.
• Variable frequency combined bass/treble boost mode.
• Deep boost switch with four frequencies, set via internal switches, and Bright option.
• Deep boost level set via internal preset trimmer.
• Rechargeable internal Li-Pol Battery, giving up to 40 hours use per charge.
• Battery charging is achieved using an AC/DC Adaptor, which plugs into the jack.
• Auto passive bypass if the system runs low on power.
• Easy to fit using screw terminals, with no solder connections to the P-Retro.
• Instrument can be returned to stock condition since there are no physical modifications to the bass.
• P-Retro Active circuit board approximate dimensions: L50.0 X W27.0 D15.0 mm (2.0” X 1.07” X 0.6”)
• P-Retro Volume/Tone & Li-Pol battery approximate dimensions: L50.0 X H29.0 X D19.0 mm (1.6” X 1.15” X 0.75”
An awesome preamp for your P-bass. Easy to install. Works as it should.
Summary of features for the P-Retro:
• Two Stacked knobs, both with Pull Switches.
• Original pure P style bass controls fully retained via passive path, using a high quality relay bypass.
• Class A FET input stage.
• Flat response active setting.
• Variable frequency mid boost mode.
• Variable frequency combined bass/treble boost mode.
• Deep boost switch with four frequencies, set via internal switches, and Bright option.
• Deep boost level set via internal preset trimmer.
• Rechargeable internal Li-Pol Battery, giving up to 40 hours use per charge.
• Battery charging is achieved using an AC/DC Adaptor, which plugs into the jack.
• Auto passive bypass if the system runs low on power.
• Easy to fit using screw terminals, with no solder connections to the P-Retro.
• Instrument can be returned to stock condition since there are no physical modifications to the bass.
• P-Retro Active circuit board approximate dimensions: L50.0 X W27.0 D15.0 mm (2.0” X 1.07” X 0.6”)
• P-Retro Volume/Tone & Li-Pol battery approximate dimensions: L50.0 X H29.0 X D19.0 mm (1.6” X 1.15” X 0.75”
