SoundQubed HDX Series Pro Audio 8" Speaker (each)

Name: SoundQubed HDX Series Pro Audio 8" Speaker (each)
Brand: SoundQubed
Price: 109.95 USD
Availability: InStock

$109.95 $129.99

Shipping calculated at checkout.

Key features

Speaker size: 8″
RMS power per speaker: 350 W
Speaker impedance: 8.0 ohms
Mounting depth: 3.44 in / 87.5 mm
Frequency response: 80 Hz–8 kHz
Sensitivity (1 W / 1 m): 98 dB

Description

Product Overview

Bring clear, high-output midbass and midrange to your car audio build with the SoundQubed PA8M-8 8-inch pro audio midrange speaker. Its 350W RMS handling, 98 dB sensitivity, and 8-ohm impedance suit high-output daily drivers and competition car audio systems.

The ferrite and neodymium hybrid motor pairs a non-pressed paper cone with a cloth surround. This speaker is sold individually, so you can order the quantity your build requires.

Key Features & Benefits

350W RMS power handling: Supports high-output system designs, with 700W maximum power handling.
98 dB sensitivity: Rated at 1W/1m for efficient output.
Hybrid magnet motor: Combines ferrite and neodymium magnets weighing 30 + 3 oz.
7.6mm one-way Xmax: Provides linear excursion for an 8-inch midrange driver.
CCAW voice coil: The 1.5-inch / 38.6mm coil uses a glass fiber former.
Aluminum basket: Provides the driver’s specified basket construction in a black finish.

Technical Specifications

Specification	Value
Nominal Diameter	8" / 203mm
Nominal Impedance	8 Ohms
RMS Power Handling	350W
MAX Power Handling	700W
Sensitivity (1W/1m)	98 dB
Frequency Response	80 Hz – 8 kHz
Recommended Hi-Pass Crossover	125 Hz
Sold In	Single

Motor and Construction Specifications

Specification	Value
Voice Coil Diameter	1.5" / 38.6mm
VC Former Material	Glass Fiber
Winding Material	CCAW
Cone Material	Non-Pressed Paper
Dust Cap Material	Paper
Surround Material	Cloth
Basket Material	Aluminum
Basket Color	Black
Magnet Material	Ferrite + Neodymium
Magnet Weight	30 + 3 oz
Displacement Volume	0.36L / 0.012ft³

Thiele & Small Parameters

Parameter	Value
Equivalent Volume (Vas)	27.67L / 0.97ft³
Excursion One Way (Xmax)	7.6mm
Free Air Resonance (Fs)	128 Hz
Mechanical Factor (Qms)	9.319
Electrical Factor (Qes)	0.856
Total Factor (Qts)	0.784
Mechanical Mass (Mms)	12.796g
Mechanical Compliance (Cms)	0.392mm/N
BL Factor (BL)	4.136
Voice Coil Inductance (Le)	0.7203mH
Cone Area (Sd)	224.32cm²
DC Resistance (Re)	5.2 Ohms
Mechanical Mass w/o Air (Mmd)	10.864g

Speaker Measurements

Dimension	Value
Overall Diameter	8.31" / 211mm
Overall Depth	3.81" / 96.7mm
Front Mount Baffle Cutout	7.09" / 180mm
Mounting Depth	3.44" / 87.5mm
Motor Diameter	4.72" / 120mm

Why Choose This Product?

The PA8M-8 is the 8-inch option in SoundQubed’s pro audio midrange lineup, between the PA6B-4 and PA10M-8. Compared with the PA6B-4, a 6.5-inch, 300W RMS, 4-ohm driver with a 160 Hz high-pass recommendation, it offers an 8-inch cone and a 125 Hz recommended high-pass point. The PA10M-8 is a 10-inch, 500W RMS, 8-ohm driver with an 80 Hz high-pass recommendation.

Choose this model when its 8-inch size, 8-ohm load, power handling, and crossover range suit your system plan.

Installation & Compatibility Notes

Use a high-pass crossover at 125 Hz minimum. For a band-pass setup, the source recommendation is a 125 Hz high-pass and a 5–8 kHz low-pass. An active crossover or DSP can set those crossover points.

The speaker handles 350W RMS at 8 ohms. A dedicated amplifier channel rated for 200–350W RMS at 8 ohms is recommended; check the amplifier’s 8-ohm rating, since some car audio amplifiers produce less power at that load. Check the mounting area against the 7.09-inch / 180mm baffle cutout and 3.44-inch / 87.5mm mounting depth. The PA8M-8 is sold as one speaker.

Frequently Asked Questions

Is the PA8M-8 a subwoofer or a midrange driver?

It is a dedicated pro audio midrange driver, not a subwoofer. Its stated frequency response is 80 Hz–8 kHz, and its recommended high-pass crossover is 125 Hz.

What amplifier power and impedance should I plan for?

The PA8M-8 is an 8-ohm speaker rated for 350W RMS and 700W maximum. The recommended amplifier channel rating is 200–350W RMS at 8 ohms; check your amplifier’s rating at that load.