Detail 01
Push/pull volume control
Switches between active electronics and passive bypass.

Independent shopping perspective
Charvel’s San Dimas Bass PJ IV combines an alder body and deep cutaway with a thin caramelized maple neck built for fast movement across the fingerboard. Jumbo frets and the caramelized maple fingerboard serve lead lines and chords, while the DiMarzio Model P and Model J pairing can be mixed with the blend control. In active mode, the three-band EQ handles low, mid, and high shaping. Pull the volume control to bypass that EQ and return to passive operation, including when a battery runs out.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Switches between active electronics and passive bypass.
Detail 02
Places the P pickup in the middle position and the J pickup at the bridge.
Detail 03
Active mode provides separate low, midrange, and high-frequency shaping.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. Pulling the volume control bypasses the active EQ for passive operation.
It uses a DiMarzio Model P in the middle position and a DiMarzio Model J at the bridge.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.