SL 87 WPM - 4 OHM

Overview

The Visaton SL 87 WPM - 4 OHM is a waterproof, full-range loudspeaker with an 8 cm (3.3 inch) diameter and a transparent plastic cone. It features an integrated rubber sealing ring for IP65 protection, making it suitable for outdoor environments. The unit has a nominal impedance of 4 Ohms, a power rating of 20 W (max 30 W), and operates within a frequency range of 200 Hz to 5 kHz. Key electrical parameters include a sound pressure level of 89 dBA and a resonance frequency of 290 Hz. Physical dimensions are 83 mm x 83 mm x 29 mm, with panel mounting via solder lugs.

Feature Summary

• Waterproof construction with IP65 rating and integrated rubber sealing ring
• Transparent plastic cone design for visual integration
• Compact round shape with square frame for panel mounting

Applications

• Outdoor audio installations requiring weather resistance
• Marine or coastal speaker systems
• General purpose public address applications in humid environments

Procurement Notes

Verify the specific ordering suffix matches the required impedance and connector type. Confirm that the IP65 rating aligns with the intended environmental exposure levels. Ensure the panel cutout dimensions match the 83 mm external width and depth specifications provided in the datasheet. Check for any regional compliance requirements such as RoHS status before finalizing the purchase order.

Selection Notes

Select this component when a compact, weather-resistant full-range driver is needed. The 4 Ohm impedance suits standard low-impedance amplifier outputs. Consider the 200 Hz lower frequency limit; it is not suitable for deep bass reproduction. The transparent cone may be preferred for aesthetic visibility in certain enclosures compared to opaque alternatives.

Part Context

This model belongs to the SL 87 WPM series by Visaton GmbH & Co. KG, specialized in weather-resistant audio transducers. It is distinct from non-waterproof variants like the standard SL 87 series due to its sealed assembly and rubber gasket. The product falls under the Speakers & Transducers category, specifically designed for durability in challenging conditions.

Replacement Considerations

Direct substitutes must maintain IP65 rating and 4 Ohm impedance. Verify physical compatibility with existing panel cutouts. Non-waterproof equivalents will fail in outdoor applications. Consult Visaton documentation for updated series replacements if discontinuation occurs.