Electro-Voice 15BX 15-Inch Long-Throw Bass Guitar Loudspeaker

Product Overview

The Electro-Voice 15BX is a high-performance 15-inch loudspeaker specifically engineered for professional bass guitar applications. It features a rugged, edge-wound flat aluminum voice coil and a heavy-duty curvilinear cone, providing a contoured frequency response that delivers deep, controlled bass. With a long-term power capacity of 400 watts and 102-dB sensitivity, it is an ideal choice for upgrading existing enclosures or building custom bass cabinets.

Technical Specifications

• Nominal Impedance: 8 ohms
• Frequency Response: 30-4,000 Hz
• Power Handling: 400 watts (EIA RS-426-A 1980)
• Sensitivity: 102 dB (1 watt/1 meter)
• Voice Coil Diameter: 63.5 mm (2.5 in.)
• Net Weight: 9.1 kg (20 lb)

Installation and Mounting

The 15BX is designed for versatility and can be front- or rear-mounted. For front mounting, a 353-mm (13.88-in.) diameter cutout is required, along with a 370-mm (14.56-in.) bolt circle. When installing, ensure the baffle is sturdy, and use T-nuts for secure mounting. The included adhesive-backed foam gasket should be applied to the speaker rim to ensure an airtight seal against the baffle. For custom enclosures, a 4.5-cubic-foot vented design is recommended to achieve optimal low-frequency extension.

Electrical Connections

Use 18-gauge or larger stranded wire for connections. When connecting multiple speakers, ensure the total impedance matches your amplifier's requirements. The 15BX can be wired in parallel or series configurations to achieve desired impedance loads (e.g., 4 ohms for two speakers in parallel, 16 ohms for two in series).

Performance and Maintenance

The speaker is designed for high reliability under demanding conditions. To maintain performance, ensure the enclosure is properly tuned to the recommended frequency (typically 44 Hz for standard bass guitar tuning). Avoid using abrasive materials on the cone. If the speaker requires service, contact an authorized Electro-Voice representative. The product is covered by a limited warranty against defects in materials and workmanship.