- Frequency Response: 70Hz to 14KHz
- Peak Power: 80 watts per pair
- Continuous Power: 40 watts RMS/pair
- Impedance: 4 ohms
- Overall Dimensions: 4 3/16″ x 4 1/16″ x 4 1/2″ (106mm x 102mm x114mm)
- Cone Size: 3.00″ (76.20mm)
MA840B – Subcompact Box Speakers
$92.95
These subcompact box speakers are designed to fit in difficult locations and still offer high quality music sound. The ultra-low magnetic field design lets you mount them anywhere without adversely affecting navigation equipment such as compasses and autopilots. Polypropylene cones, stainless steel grills and brackets, and heavy-duty ABS enclosures make them corrosion-proof and waterproof. Dual cone design with 3” main cone size.
- Ideal for locations where other speakers won’t fit
- Only 4” x 4”
- Ultra-low magnetic field speaker
- Stainless steel grill and bracket
- Also available in white color speaker (Part# MA840W)
- SOLD IN PAIRS (2 SPEAKERS)

All orders are shipped within 1-2 business days. Estimated arrival dates are for domestic orders placed today. We've adjusted these estimates to account for holidays and weekends. Estimated arrival dates don't apply to:
- Deliveries to Alaska, Hawaii, PO boxes and rural areas
- Deliveries made to U.S. territories, APO, FPO and international addresses
- Items that are out of stock at the time of ordering
Please Note: For shipping-related questions, please contact us directly here. Packages Do Not Ship on the Following Holidays: New Year's Day 4th of July Martin Luther King Jr. Day Labor Day President's Day Thanksgiving and the day after Thanksgiving Memorial Day Christmas