Pyramid Technologies PB449X, PB446X, PB448X, PB444X owner manual

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power LED this indicator is illuminated when power is applied.

high level inputs if your car stereo does not have RCA output jacks, you can connect the speaker output from the stereo system to the amplifier.

low level inputs this amp features gold-plated RCA input jacks for high impedance input. Use these with car stereo output which uses RCA-type connector cables.

input gain controls use these controls to match the outputs of your head unit to each pair of amplifier inputs. Starting with your head unit volume control set at about the 2 o’clock position, increase the amp gain controls until distortion begins to occur, and reduce slightly from this point.

bridged mode switch the amplifier can be bridged to form a high-power two channels unit. Make sure that the speaker system on the bridged channel is capable of handling the rated power and is of the proper impedance.

subwoofer crossover this flexible amplifier can be set up with on/off switch left/right (or bridged) rear subwoofer

system(s). This switch activate the rear subwoofer crossover.

subwoofer crossover when activated, this control sets the upper frequency control frequency limit for signals sent to the rear

channel(s).

speaker connections these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss.

power terminals use these connectors to deliver power, ground, and remote turn-on control to the amplifier.

power fuse the fuse protects the amplifier and your car’s electrical system from short circuit conditions.

protection indicator if the amplifier is incorrectly wired or not matched to the speaker system, the protection indicator will come on and the amplifier will turn off. Disconnect the power wire to reset the amplifier.

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Contents Owner’s Manual Introduction Table of contentsPB444X PB446X PB448X PB449X SpecificationsFeatures and controls Page Ch amp PB446X PB449X Page Ch amp PB448X Page Installation Precautions Mounting and installationElectrical connections PB448X Mono input connections Stereo input connectionsUsing low level inputs Using high level inputs Channel input connections Hi level input connections CH mono input connections Hi level mono input connections Speaker connections Mode switch in Stereo position Channel stereo output mode Amplifier will not power up TroubleshootingFor Your Protection