The Park 45 head and combo use modern and NOS parts to faithfully recreate the classic vintage British 45 circuit and sound quality. As in the originals, KT66 output tubes are used in the power section for a rich tone that sounds great clean and overdriven. At 30 watts clean and 45 watts fully cranked this circuit has been heard on countless seminal guitar recordings from the 1960s through the present. As with all Park amps we use carefully selected parts to recreate the sound and feel of the originals including custom USA made transformers (built the old fashioned way with paper bobbins), aluminum chassis, custom Park banana knobs, Park black plexi block logo and Celestion Heritage speakers in the combo. New feature: As or 2021 all Park 45 heads come with a push-pull control for Channel II’s volume control which adds brightness to this traditionally dark channel. This gives you increased tonal options.