Peerless TC8FD00-04 3" Full-Range Speaker 4 Ohm
Best box: 1.5 L bass reflex tuned to 106.2 Hz · F3 128.2 Hz
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Comparable 3.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Peerless TC8FD00-04 3" Full-Range Speaker 4 Ohm does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
⚠️ Engineering Notice for Builders
- Limited linear excursion (Xmax: 2.4 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 1.5 Liters |
| Tuning Frequency (Fb) | 106.2 Hz |
| F3 (-3 dB Cutoff) | 128.2 Hz |
| F6 / F10 Extension | 102.9 Hz / 80.4 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 31.2 cm |
| First Pipe Resonance | 551.0 Hz |
| Estimated MOL @ F3 | 99.8 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.92 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.301; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 0.85 Liters |
| System Q (Qtc) | 1.301 (above Butterworth: Qtc cannot fall below Qts (0.92)) |
| System Resonance (Fc) | 176.8 Hz |
| F3 (-3 dB Cutoff) | 151.5 Hz |
| F6 / F10 Extension | 129.4 Hz / 106.7 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 125.0 Hz |
| Total Q (Qts) | 0.92 |
| Electrical Q (Qes) | 1.224 |
| Mechanical Q (Qms) | 3.7 |
| Equivalent Volume (Vas) | 0.8 Liters |
| Diaphragm Area (Sd) | 33.2 cm² |
| DC Resistance (Re) | 3.3 Ω |
| Efficiency Bandwidth Product (EBP) | 102.1 |
| Linear Excursion (Xmax) | 2.4 mm |
| Thermal Power (Pe) | 25.0 W |
| Nominal Diameter | 3.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Peerless TC8FD00-04 3" Full-Range Speaker 4 Ohm?
Load Forge's calculated alignment puts Peerless TC8FD00-04 3" Full-Range Speaker 4 Ohm in a 1.5 liter vented enclosure tuned to 106.2 Hz, reaching an F3 cutoff of approximately 128.2 Hz.
Can Peerless TC8FD00-04 3" Full-Range Speaker 4 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.85 liters with a Qtc of 1.301 (above Butterworth: Qtc cannot fall below Qts (0.92)), the system exhibits an F3 of 151.5 Hz.
What port dimensions should be used for Peerless TC8FD00-04 3" Full-Range Speaker 4 Ohm to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 31.2 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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