Hughes & Kettner Puretone manual Jacks and Control Features, Front Panel, Rear Panel

1.0 JACKS AND CONTROL FEATURES

FRONT PANEL:

INPUT: Plug your guitar into this jack

(it accepts all standard guitar input levels).

VOLUME: Determines the PURETONE output level. At higher levels, the amp will crank out that trademark Class A grind. You'll find it easy to go from clean to dirty sounds and vice versa by simply manipulating your guitar's volume knob.

BASS, MID, TREBLE: 3-band voicing section. Mid and Treble influence one another, an attribute considered normal and desirable in a tube amp. Boosting treble decreases midrange honk and vice versa: jacking up the mids cuts back on top-end shimmer. You'll find that this feature offers a fairly staggering range of subtle tonal variations.

GROWL: Cuts the tone controls out of the circuit. When it is set to the far right position, the voicing section is bypassed entirely. The sound of your guitar comes through completely unfiltered.

OUTPUT SELECTOR (NOTE: On the PURETONE head, this switch is located on the rear panel.):

The PURETONE is a very loud amp. This kind of power can be undesirable in some situations, which is why the amp is equipped with the OUTPUT POWER circuit. Use this switch to select the desired level of power amp performance depending on the given venue and application. You can cut power output from 100% to 80% (switch set to the 12 o'clock position) and

on down to 50%.

STANDBY: Be sure to wait one to two minutes after turning on the POWER switch before you flip this switch. It assures that the tubes warm up gradually when you first power up the PURETONE and mutes the amp during breaks. In the latter case, the tubes stay nice

and toasty so that they don't have to heated up again when you're ready to get back to playing.

POWER: The PURETONE's mains power switch.

RED MAINS LED: The red LED illuminates when the PURETONE is powered up.

REAR PANEL

MAINS IN: Connect the factory-included Euro-norm mains cord to this socket. Ensure the amp's voltage rating matches your local AC voltage rating before you plug the cord into the wall socket. The mains fuse bracket is located next to this socket. When replacing blown fuses, make sure you use specified replacement fuses only (see Technical Specifications).

ANODE FUSE: This is the holder for the power tubes' anode fuses. Here too, make sure you use specified replacement fuses only when replacing blown fuses. If a replacement fuse blows after just a short while in operation, you should definitely have the power tubes checked for defects.

OUTPUT: On the PURETONE head, the OUTPUT POWER switch is located on the rear panel. (For more info, check out the description above.)

SPEAKERS: The PURETONE features two speaker outputs for connecting speakers with an overall minimum impedance of 8 ohms. This means that you can connect either an 8-ohm cabinet or two 4-ohm cabs to the PURETONE head. On the combo version, the output is factory-connected to the internal 16-ohm speaker. You'll find the connector for an external cabinet behind the rear panel next to the connector for the internal speaker. Bear in mind that if you want to connect additional speakers, you can only connect a

16-ohm cabinet. However, if you first disconnect the internal speaker, you can connect an 8-ohm cab.