REDCATT DR-2-003-8R-B2-C0001
Best box: 0.08 L sealed · Fc 360.6 Hz · F3 305.7 Hz
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Comparable 2.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the REDCATT DR-2-003-8R-B2-C0001 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: 0.75 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.
Textbook Bass Reflex — not recommended (20.1 dB bass hump)
PORT BUILDABLE| Net Box Volume (Vb) | 1.5 Liters |
| Tuning Frequency (Fb) | 216.8 Hz |
| F3 (-3 dB Cutoff) | 202.3 Hz |
| F6 / F10 Extension | 193.5 Hz / 182.5 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 4.8 cm |
| First Pipe Resonance | 3604.0 Hz |
| Estimated MOL @ F3 | 99.2 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.85 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.202; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 0.08 Liters |
| System Q (Qtc) | 1.202 (above Butterworth: Qtc cannot fall below Qts (0.85)) |
| System Resonance (Fc) | 360.6 Hz |
| F3 (-3 dB Cutoff) | 305.7 Hz |
| F6 / F10 Extension | 258.3 Hz / 211.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 255.0 Hz |
| Total Q (Qts) | 0.85 |
| Electrical Q (Qes) | 0.979 |
| Mechanical Q (Qms) | 6.46 |
| Equivalent Volume (Vas) | 0.1 Liters |
| Diaphragm Area (Sd) | 15.9 cm² |
| DC Resistance (Re) | 5.6 Ω |
| Efficiency Bandwidth Product (EBP) | 260.5 |
| Linear Excursion (Xmax) | 0.8 mm |
| Thermal Power (Pe) | N/A W |
| Nominal Diameter | 2.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for REDCATT DR-2-003-8R-B2-C0001?
A simple ported box is not recommended for REDCATT DR-2-003-8R-B2-C0001: the textbook alignment (1.5 liters tuned to 216.8 Hz) needs a 4.8 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.
Can REDCATT DR-2-003-8R-B2-C0001 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.08 liters with a Qtc of 1.202 (above Butterworth: Qtc cannot fall below Qts (0.85)), the system exhibits an F3 of 305.7 Hz.
What port dimensions should be used for REDCATT DR-2-003-8R-B2-C0001 to avoid port chuffing?
A straight 5.0 cm port would need 4.8 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.
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