Versatile Load

Stereo Integrity TM8

Best box: 19.5 L bass reflex tuned to 39.1 Hz · F3 56.5 Hz

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Comparable 8.0" Drivers

Drivers with similar piston area, resonance and Qts — useful alternatives when the Stereo Integrity TM8 does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.

Peerless

PRLSLSP830667

8.0" · Fs 46.0 Hz · Qts 0.75 · Vas 19.0 L

Peerless

P830667

7.99" · Fs 46.0 Hz · Qts 0.75 · Vas 19.0 L

Isophon

Orchestra 34

8.0" · Fs 48.0 Hz · Qts 0.72 · Vas 25.0 L

Goldwood

GW-8024 8" Butyl Surround Woofer 4 Ohm

8.0" · Fs 44.1 Hz · Qts 0.73 · Vas 30.6 L

Gladen

ZETA 200

8.0" · Fs 46.8 Hz · Qts 0.66 · Vas 29.9 L

BRAX

Datenblatt_BRAX_MATRIX_ML8-MID_Web

8.0" · Fs 45.0 Hz · Qts 0.58 · Vas 24.0 L

Compare them in the same box → Browse all 8.0" drivers → All Stereo Integrity drivers →

Recommended Bass Reflex (Vented)

PORT BUILDABLE

Net Box Volume (Vb)	19.5 Liters
Tuning Frequency (Fb)	39.1 Hz
F3 (-3 dB Cutoff)	56.5 Hz
F6 / F10 Extension	47.0 Hz / 36.2 Hz
Port Inner Diameter	Ø 6.8 cm
Port Physical Length	31.7 cm
First Pipe Resonance	543.0 Hz
Estimated MOL @ F3	112.1 dB SPL

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Sealed (Acoustic Suspension) — compromise

SUITS INFINITE / OPEN BAFFLE

With Qts 0.74 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.047; for a flat response this driver is better used on an infinite (IB) or open baffle.

Net Box Volume (Vb)	24.4 Liters
System Q (Qtc)	1.047 (above Butterworth: Qtc cannot fall below Qts (0.74))
System Resonance (Fc)	65.1 Hz
F3 (-3 dB Cutoff)	54.3 Hz
F6 / F10 Extension	45.0 Hz / 36.1 Hz
Air Spring Linearity	High (Zero port compression)

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Thiele/Small Parameters

Resonance (Fs)	46.0 Hz
Total Q (Qts)	0.74
Electrical Q (Qes)	0.909
Mechanical Q (Qms)	3.98

Equivalent Volume (Vas)	24.4 Liters
Diaphragm Area (Sd)	226.8 cm²
DC Resistance (Re)	4.2 Ω
Efficiency Bandwidth Product (EBP)	50.6

Linear Excursion (Xmax)	7.9 mm
Thermal Power (Pe)	N/A W
Nominal Diameter	8.0"
Catalog Source	Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for Stereo Integrity TM8?

Load Forge's calculated alignment puts Stereo Integrity TM8 in a 19.5 liter vented enclosure tuned to 39.1 Hz, reaching an F3 cutoff of approximately 56.5 Hz.

Can Stereo Integrity TM8 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 24.4 liters with a Qtc of 1.047 (above Butterworth: Qtc cannot fall below Qts (0.74)), the system exhibits an F3 of 54.3 Hz.

What port dimensions should be used for Stereo Integrity TM8 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 31.7 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.

Shareable Acoustic Card for Forums & Social Media

Embed this design card on DIYAudio, AVSForum, Reddit, or Facebook. It shows the calculated F3, MOL (when the power rating is published) and box parameters.

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