Taramps 8-MB 400S 8-Inch Midbass Woofer, 200W RMS

Build midbass and midrange into your compatible sound system with the Taramps 8-MB 400S. This 8-inch woofer combines a ventilated steel basket and copper voice-coil wire with a listed 60Hz–4kHz response for automotive audio projects.

Key Features

• Listed power handling of 200W RMS.
• 400W musical program rating, distinct from the RMS rating.
• 8-inch nominal driver diameter.
• Listed frequency response from 60Hz to 4,000Hz.
• Ventilated basket designed to support heat exchange around the coil.
• 2-inch voice coil with round copper wire and a fiber former.

Important Impedance Check

The supplied information describes both 4-ohm and 8-ohm versions but does not identify which version is offered here. Confirm the actual driver's label before ordering or matching an amplifier. These are alternative model impedances, not a user-selectable impedance setting.

Listed Specifications

• Brand: Taramps
• Model: 8-MB 400S
• Nominal diameter: 8 inches
• Power handling: 200W RMS; 400W musical program
• Nominal impedance: 4-ohm or 8-ohm versions described; supplied version unconfirmed.
• Listed DC resistance: 3.1 / 6.2 ohms; verify the applicable version.
• Sensitivity: 92.386dB at 1W/1m, free-air
• Frequency response: 60Hz–4kHz; tolerance unspecified.
• Voice-coil diameter: 2 inches; height: 11mm
• Basket: Steel
• Magnet: Barium ferrite; listed dimensions 134 x 56 x 18mm
• Listed equipment weight: 2.8kg

Listed Driver Parameters

• Resonant frequency (Fs): 74.861Hz
• Qms: 7.031; Qes: 0.493; Qts: 0.460
• Equivalent compliance volume (Vas): 13.218L
• Moving mass (Mms): 21.667g; diaphragm mass (Mmd): 19.902g
• Force factor (BL): 11.048Tm
• Compliance (Cms): 208.602 micrometers/N
• Voice-coil inductance at 10kHz: 0.4495mH
• Effective cone area (Sd): 0.0211 square meters
• Listed Xmax: ±4mm
• Reference efficiency: 1.088%
• Gap flux density: 11,300 gauss; gap height: 6mm
• Listed driver displacement inside an enclosure: 1.0L

Figures come from the supplied listing, not independent tests. Confirm the datasheet for the exact impedance version before enclosure design. Vas and driver displacement are not recommended enclosure volumes, and Xmax is not a guarantee of distortion-free operation.

Installation and Care

• Have a qualified installer verify amplifier matching, impedance, enclosure design, filtering and wiring polarity.
• Confirm mounting cutout, bolt pattern and depth before modifying an enclosure; nominal diameter is not a fitting measurement.
• Disconnect the amplifier before wiring or mounting.
• Avoid clipping and excessive excursion. Follow the manufacturer's power-handling and crossover guidance.
• Keep dry, protect the cone and terminals from damage, and use hearing-safe listening levels.

Contents and Logistics

This listing describes a woofer driver, not a complete powered speaker. An enclosure, amplifier, cables or mounting accessories are not specified as included. The listed 2.8kg is equipment weight, not a measured packed shipping weight. Packed dimensions were not supplied.