User manual FENDER PRECISION BASS

[. . . ] With DELTACOMPTM, apparent compressor release time is kept short, yet waveform distortion is kept to a minimum at low frequencies. The selection of a Fender® amplifier will reward you with years of quality music in a wide range of sonic possibilities. This manual is designed to familiarize you with the features and functions of your PRECISION BASS amplifier. Read this manual carefully so you will benefit from these features as soon as you start using your new Fender® amplifier. [. . . ] Low-level instruments generally require a higher Channel Volume setting while "hotter" keyboards will require a lower setting. CHANNEL 1 EQUALIZER - This equalizer allows adjustments of the tonal characteristics of channel 1 before amplification. Each control provides a 12dB boost or cut to bands of frequencies centered about 130, 540, and 4200 Hz. Note that all equalizer sections of the PRECISION BASS are designed so that if all center frequencies are set at +12dB, a flat overall response would be obtained. CHANNEL 1 EFFECTS SEND CONTROL - This control works in conjunction with the effects send jack (item R), effects return jack (item S), and the effect return control (item J) to , respectively, allow a desired amount of preamp signal to be massaged, and to control the amount of return signal that has gone through an external effects device. The effects send control in conjunction with the effects send jack could be used to drive another PRECISION BASS as a slave amp. This is done by connecting the effects send jack, with a standard guitar cord, to the effects return jack of another PRECISION BASS. Note that each channel could be set to send a different amount of signal to the effects bus. CHANNEL 1 REVERB SEND CONTROL - This control works in conjunction with the reverb return control (item K) to allow the amount of reverb to be mixed with the dry signal. The amount of reverb-sent signal is independent for each channel. C. F, G. CHANNEL 2 AND 3 - These two channels are provided for two additional instruments. When the switch is off, the amplifier is completely shut down. J. K. PRECISION BASS REAR PANEL P, Q. LINE OUTPUT JACKS - Signal from each of the channels are combined with reverb and effects to form the input to the power amplifier stage. The 1/4 Jack (Item P) and the XLR jack (Item Q) provide easy connection paths from the PRECISION BASS to any external devices, such as a slave amp or a mixer. Note that inserting a plug into one of the Line Outs jacks does not interrupt the normal internal signal flow of the PRECISION BASS. EFFECTS SEND JACK - This jack is the output of the effects bus, where all the channels Effects Send are combined. The signal coming out of this jack could be used to drive an effects device, a slave amp, or as an input to a mixer . EFFECTS RETURN JACK - This jack inputs signal to the master section of the PRECISION BASS through the Effects Return control (Item J). This jack can be used with the Effects Send Jack (item R) as a patch point for mono effect devices. This jack can also be used as the input jack when the PRECISION BASS is used as a slave amp. CHANNEL INSERT JACKS - These jacks are wired post-EQ and post channel volume control. By inserting an external signal source into one of these jacks, through a stereo jack wired to the tip and sleeve (with the ring left floating), the appropriate channel's EQ and volume control are bypassed. [. . . ] The line cord should be connected to a suitable power source, in accordance with the voltage and frequency as shown by the power rating on the rear panel. NOTE: DO NOT BLOCK THE AIR FLOW TO THE REAR PANEL; FOR EXAMPLE, BY BACKING THE AMPLIFIER UP AGAINST A WALL. The rear panel contains a heatsink that needs air flow to cool off the amplifier. Blocking the air flow may result in equipment failure due to excessive heat building up inside the chassis. [. . . ]