Electro-Voice ASP-58 Distance Bar M20 (935–1460 mm) for EKX/ETX Subwoofers

Electro-Voice ASP-58 Distance Bar M20 (935–1460 mm) for EKX/ETX Subwoofers

The Electro-Voice ASP-58 is an adjustable spacing bar designed to securely mount a full-range loudspeaker to a subwoofer with an M20 thread , such as the EKX (and ETX) series. Constructed from powder-coated steel , it offers a height range of 935 to 1460 mm , adjustable in 175 mm increments , with a spring-loaded pin, locking screw and safety bolt for secure attachment in any position. The top tip is 35 mm (speaker cup standard), while the bottom end features a tapered M20 thread for a secure fit to the subwoofer cup. With a load capacity of 45.4 kg and a dead weight of 2.4 kg , it provides a robust and durable solution for portable systems and installations.

Main features

• Compatibility : Designed for subwoofers with M20 thread (EKX, ETX and others), and tops with 35 mm cup.
• Adjustable height : from 935 to 1460 mm in 175 mm increments to adapt the coverage to the enclosure.
• Mechanical safety : spring-loaded pin + locking screw + safety bolt .
• Structure : Powder-coated steel for high wear resistance.
• Load capacity : up to 45.4 kg (top + hardware).
• Top interface : 35mm spike compatible with most full range speakers.
• Bottom Interface : M20 threaded with taper for a firm fit to the subwoofer.
• Weight and shipping : 2.4 kg (net) / 3.1 kg (packaged).

Product benefits

• Superior stability compared to smooth bars: the M20 anchor prevents unwanted rotation and improves the safety of the assembly.
• Precise height settings to optimize top coverage over the audience.
• Professional durability thanks to the steel body and scratch-resistant powder coat finish.
• Quick and secure assembly with redundant mechanical locking.

Use cases

• Portable systems with EKX/ETX subwoofer and EKX/ELX/ZLX or other brand top speaker (35 mm cup).
• Events, rentals, and fixed installations requiring consistent top-over-sub orientation and height .

Frequently Asked Questions

Does it work with non-threaded subwoofers (35mm smooth bowl)? No; an M20 thread is required on the subwoofer.
What speakers can I mount on top? Any enclosure with a 35mm cup and within the 45.4kg limit.

Description for projects

Electro-Voice ASP-58 Adjustable Distance Subwoofer Pole with M20 Thread ; Height 935–1460 mm ( 175 mm steps); Top Pin 35 mm ; Locking System with Spring-Loaded Pin , Locking Screw and Safety Bolt ; Material : Powder-Coated Steel ; Load Capacity 45.4 kg ; Net Weight 2.4 kg ( 3.1 kg with Packaging).