User manual PEAVEY VALVEKING

[. . . ] Unplug this apparatus during lightning storms or when unused for long periods of time. Servicing is required when the apparatus has been damaged in any way, such as when power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. " Connect only to a power supply of the type marked on the unit adjacent to the power supply cord. If this product is to be mounted in an equipment rack, rear support should be provided. [. . . ] When depressed, this switch increases the preamp gain to add more distortion. The GAIN BOOST (#8) may be selected independently or in conjunction with the VOLUME BOOST (#9). This feature can be controlled via the optional footswitch (Iitem #00579720). NOTE: Activating this feature is comparable to turning up the Gain control, thus increasing distortion. When depressed, this switch boosts the overall volume level of the Lead channel. The VOLUME BOOST may be selected independently or in conjunction with the GAIN BOOST (#8). This feature can be controlled via the optional footswitch (#00579720). NOTE: Activating this feature is comparable to turning up the VOLUME control, thus increasing loudness. Inserting a plug into this jack will break the signal path until it is returned via the EFFECTS SEND (#13) jack. RESONANCE (ValveKingTM 212 and 100 Head only) This patented feature, available only from Peavey, is used to fine-tune the low-frequency response and damping factor of the power amp section. At higher settings, the speakers are allowed to move more freely at low frequencies, resulting in more apparent low end with slightly less signal clarity at maximum settings. PRESENCE (ValveKing 212 and 100 Head only) This control is used to fine-tune the high-frequency response and damping factor of the power amp section. At higher settings, the speakers are allowed to move more freely at high frequencies, resulting in more apparent high end. STANDBY SWITCH Placing this switch in the "Standby" position will effectively shut the amp off while leaving the tube filaments on. Leave this switch in the "Standby" position for a minimum of one (1) minute after engaging the POWER SWITCH (#19). This is also a useful feature, since much tube wear comes from the heating and cooling of the tube itself. Leaving the unit in "Standby" when you take a break allows the tubes to stay warm while you are not playing. To immediately resume normal amp operation with no warm-up delay, place the switch in the "ON" position. [. . . ] The footswitch turns on and off either one or both Boost functions (Gain and Volume) as selected by the front panel switches. if no switch is depressed in the Boost section , the Boost footswitch does not function. When using the footswitch, always insert the plug fully (second click) into the FOOTSWITCH JACK to ensure proper operation. iMPEDANCE SELECTOR (ValveKing 212 and 100 Head only) This three-position switch allows appropriate selection of speaker cabinet impedance. [. . . ]