Stereo Integrity TM8 8" Midbass Speaker (Pair) | 150W RMS

Stereo Integrity TM8 8" Midbass Speaker (Pair) | 150W RMS | 4 Ohm

The Stereo Integrity TM8 is a premium 8" midbass speaker engineered for clean, punchy low-end and detailed midrange—all in a compact, easy-to-install package. Designed in North Carolina using Finite Element Analysis (FEA), the TM8 is built from the ground up to deliver high-end performance in real-world installs, especially vehicle doors and infinite baffle environments.

With 150W RMS power handling, a 50mm copper voice coil, and 7mm of one-way Xmax, the TM8 generates powerful, pant-leg-slapping midbass while maintaining smooth and natural upper midrange extension—reaching up to 4,500 Hz on-axis.

Its pure aluminum cone offers excellent strength-to-weight ratio for fast response and controlled movement, while the CZA voice coil former and twin shorting rings (copper pole sleeve + magnet ID ring) help linearize inductance and maximize clarity. Add in the integrated rain shield, custom cast aluminum basket, and super shallow 2.3" mounting depth, and you’ve got one of the most versatile midbass drivers on the market.

Key Features:

• 150W RMS Power Handling

• Single 4 Ohm Voice Coil

• 50mm Copper Voice Coil on CZA Former

• Pure Aluminum Cone with Rubber Surround

• Custom Cast Aluminum Basket with Rain Shield

• 7mm Xmax (One-Way, 70% BL), 11mm Xmech

• Designed for Infinite Baffle (Vehicle Door) Use

• Extended Frequency Response up to 4,500 Hz On-Axis

• Great for 2-Way or 3-Way Front Stage Systems

Recommended Use:

• In-Vehicle Frequency Range: 27 Hz – 7,000 Hz

• High-Pass Crossover: ≥ 40 Hz @ 24 dB/octave

• 2-Way Setup Crossover: ~3,000 Hz

Match the TM8 with the Stereo Integrity M25 MKII Tweeter for a clean 2-way system or pair with the M3 Carbon Midrange for a powerful 3-way front stage that rivals much more expensive component setups.

Component Speaker Specifications

Quick Info:

• Power Handling (RMS): 150 Watts

• Nominal Impedance: 4 Ohms

• Gross Weight (Each): 4 lbs

• Mounting Depth: 58 mm (2.3")

• Outside Diameter (OD): 209 mm

• Cutout Diameter: 183 mm

• Voice Coil Diameter: 50 mm

• Terminal Type: Spring-Loaded

• Basket Flange Thickness: 4.2 mm

Thiele-Small Parameters:

• Re: 3.8 Ohms

• Fs: 58 Hz

• Qes: 1.08

• Qts: 0.83

• Le: 0.19 mH

• Sd: 35.17 in²

• Vas: 17.1 Liters

• BL: 6.35 Tm

• Mms: 32.3 g

• Cms: 233 µM/N

• Sensitivity: 90 dB

• Xmax: 7 mm (One-Way, 70% BL)

• Xmech: 11 mm (One-Way)

Materials:

• Surround Material: Rubber

• Cone Material: Aluminum

• Voice Coil Material: Copper

• Magnet Material: Ferrite

Enclosure Recommendations:

Sealed:

• Optimal Volume: 0.2 ft³

• Maximum Volume: 1.5 ft³

Ported:

• Optimal Volume: 3.0 ft³

• Range: 2.5 – 3.5 ft³

• Tuning Frequency: 28 Hz

• Port Surface Area: 7 in²

When you need powerful, detailed midbass that fits in tight spaces, the Stereo Integrity TM8 delivers. Its elite motor design, shallow mounting, and excellent thermal performance make it an unbeatable choice for serious audio enthusiasts building top-tier systems.