Beta 3 U15a Service Manual !link! -

: Features a 15-inch low-frequency woofer (50mm voice coil) and a 1.7-inch high-frequency compression driver.

Here are some key procedures and tips from the Beta 3 U15a Service Manual: Beta 3 U15a Service Manual

: Features a 15" high-power low-frequency (LF) transducer with a 50mm voice coil and a 1.7" diaphragm compression driver for high frequencies (HF). : Features a 15-inch low-frequency woofer (50mm voice

Note: Always capture fault/error codes from the unit display or diagnostics interface; compare with table below. compare with table below.