Professional-grade mobility solution for heavy PA gear including line arrays, dual 18-inch subwoofers, and large speaker cabinets that require frequent transport. These heavy-duty casters transform stationary equipment into easily maneuverable systems for touring musicians, mobile DJs, and event production companies.

Each 4-inch locking swivel caster supports up to 500 pounds, providing the strength needed for quad subwoofer stacks and large line array elements. The steel frame construction and non-skid rubber wheels deliver reliable performance on stage surfaces, loading docks, and venue floors.

The locking mechanism secures equipment in position during performances while the swivel design enables tight-radius turns in cramped backstage areas. At 5 inches from mounting plate to ground, these casters provide adequate clearance without excessive height addition. Each caster weighs 1.29 pounds, adding minimal bulk to your transport cases.

Mobile sound reinforcement setups benefit significantly from this mobility upgrade, particularly for corporate events, outdoor festivals, and multi-venue tours where frequent equipment moves are standard. Churches with portable PA systems and rental companies managing heavy inventory will find these casters reduce setup time and physical strain during load-in and strike.

Installation requires standard mounting hardware appropriate for your cabinet construction. The complete 4-pack provides full mobility for most single cabinets or pairs the front/rear casters for larger rigs.

Seismic Audio backs these casters with a one-year warranty, ensuring reliable performance for professional applications. Fast shipping gets your mobility upgrade delivered quickly.

Technical Specifications

Frequently Asked Questions

What weight capacity do I need for my PA equipment?

Each caster supports 500 pounds, so a 4-pack handles up to 2,000 pounds total. This capacity works for most dual 18-inch subwoofers (typically 150-200 lbs each), line array elements, and heavy speaker cabinets. For reference, most professional subwoofers and large PA speakers fall well within this range.

Will these casters fit my existing speaker cabinets?

These casters mount using standard hardware to wooden or metal cabinet construction. The mounting plate dimensions accommodate most professional PA cabinet designs. You'll need appropriate bolts or screws based on your cabinet's material and thickness - hardware is not included with the casters.

How much height do these casters add to my speakers?

These casters add 5 inches from the mounting surface to the ground. This minimal height increase maintains proper acoustic positioning for most PA applications while providing adequate clearance for smooth rolling over typical venue floor surfaces and cable runs.

Can I use these casters for outdoor events and rough surfaces?

The non-skid rubber wheels and steel frame construction handle outdoor venues, loading docks, and moderately rough surfaces effectively. The locking mechanism secures equipment during performances, preventing unwanted movement on sloped stages or uneven ground common at festival sites.

Do I need all four casters or can I use fewer for lighter equipment?

Use all four casters for proper weight distribution and stability, even with lighter cabinets. Using fewer casters creates uneven weight distribution that can damage equipment and create safety hazards. The complete 4-pack ensures balanced mobility and prevents tipping during transport.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer. For more information, go to: www.P65Warnings.ca.gov