Detail 01
Dual VU meters
One meter tracks input gain while the other shows output level.

Independent shopping perspective
Built around a 600W tube-hybrid platform, the ABM600 Dual VU Rack EVO IV combines a 12AX7 preamp tube with a 9-band EQ and separate visual monitoring for input gain and output level. Its 3U, 2mm mild-steel chassis has rack mounts at both the front and rear, giving the head a defined place in a protected rack system. Pair it with a cabinet meeting the 4-ohm minimum requirement for a high-power bass rig.


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
One meter tracks input gain while the other shows output level.
Detail 02
The head can be mounted from both its front and rear rack points.
Detail 03
A tube is part of the preamp section within the hybrid design.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
They provide monitoring for input gain and output level.
Yes. The 3U chassis has both front and rear rack mounts.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.