Audiopipe 6" 125W RMS 8-Ohm Sealed-Back Low-Mid Loudspeaker APMB-6SB-E

• POWERFUL LOW-MID OUTPUT: 6-inch low-mid frequency loudspeaker delivers clean vocals and controlled midrange performance from 350 Hz to 5 kHz.
• 125 WATTS RMS: Handles 125 watts RMS and 250 watts peak for dependable output in car audio, pro-audio, and multi-speaker systems.
• SEALED-BACK DESIGN: Closed steel basket controls the rear wave and helps reduce interference without requiring a separate rear enclosure.
• HIGH-TEMPERATURE VOICE COIL: Ventilated 1.5-inch KSV voice coil supports reliable thermal performance during extended listening sessions.
• DURABLE 8-OHM LOUDSPEAKER: Features a paper cone, cloth surround, 20-ounce ferrite magnet, 91 dB sensitivity, and 2.4-inch mounting depth. Sold individually.

Audiopipe 6" 125W RMS 8-Ohm Sealed-Back Low-Mid Loudspeaker APMB-6SB-E

This Listing Includes:

• (1) Audiopipe APMB-6SB-E 6" Low-Mid Frequency Loudspeaker


• Sold individually.

The Audiopipe APMB-6SB-E is a 6-inch low-mid frequency loudspeaker designed to deliver strong vocal presence, controlled low-midrange response, and reliable output in demanding car and pro-audio systems.

Its paper cone and cloth edge surround provide smooth, responsive performance throughout the 350 Hz to 5 kHz frequency range. The sealed-back steel basket creates a self-contained acoustic chamber that helps control the rear wave and reduces interference from the surrounding installation area. This makes the speaker especially useful in space-restricted installations where a separate rear enclosure is unavailable.

A ventilated 1.5-inch high-temperature KSV voice coil provides dependable thermal performance during extended use. With 125 watts RMS power handling, 250 watts peak power, an 8-ohm impedance, and 91 dB sensitivity, the APMB-6SB-E delivers clean, efficient output for vocal-focused and multi-speaker audio systems.

A rigid steel basket, 20-ounce ferrite magnet, and predrilled mounting holes complete a durable speaker designed for straightforward installation and consistent performance.

Features

• 6-inch low-mid frequency loudspeaker


• 125 watts RMS power handling


• 250 watts peak power handling


• 8-ohm nominal impedance


• 350 Hz–5 kHz frequency response


• 91 dB sensitivity


• Sealed-back steel basket


• Paper cone with cloth edge surround


• 1.5-inch high-temperature KSV voice coil


• Improved voice-coil ventilation


• 20-ounce ferrite magnet


• Predrilled mounting holes


• Sold individually

Specifications

• Brand: Audiopipe


• Model: APMB-6SB-E


• Nominal Speaker Size: 6 inch


• Nominal Impedance: 8 Ohms


• RMS Power Handling: 125 Watts


• Peak Power Handling: 250 Watts


• Sensitivity: 91 dB (1W/1m)


• Frequency Response: 350 Hz–5 kHz


• Voice Coil Diameter: 1.5 inch


• Voice Coil Former Material: KSV


• Winding Material: EISV


• Cone Material: Paper


• Surround Material: Cloth


• Basket Material: Steel


• Basket Design: Sealed back


• Magnet Material: Ferrite


• Magnet Weight: 20 oz


• Quantity: One speaker

Thiele/Small Parameters

• Vas: 0.31 ft


• Fs: 470 Hz


• Qms: 2.05


• Qes: 1.76


• Qts: 1.00


• Mms: 24 g


• Cms: 63 m/N


• BL: 12 Tm


• Le: 0.18 mH


• Sd: 137 cm


• Re: 7.4 Ohms


• Mmd: 20 g

Dimensions

• Overall Diameter: 6.6 inches (167 mm)


• Overall Depth: 2.5 inches (64 mm)


• Mounting Depth: 2.4 inches (60 mm)


• Front-Mount Cutout Diameter: 5.7 inches (145 mm)


• Motor Diameter: 4.5 inches (115 mm)

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
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International Payment Methods

• Bancontact
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Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

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