Dayton Audio RS180-4
woofer · EBP 65 → suits either box · nominal (full) — Dayton Audio RS180-4 spec sheet (manufacturer)
Thiele/Small parameters
| Fs (resonance) | 38.4 Hz |
| Qts | 0.46 |
| Qes / Qms | 0.59 / 2.13 |
| Vas | 21.2 L |
| Re / nominal Z | 3.1 Ω / 4 Ω |
| Xmax | 6.0 mm |
| Sensitivity | 84.9 dB (1 W/1 m, calc); 89.2 dB (2.83 V/1 m, mfr) |
| Power handling | 60 W |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building. datasheet
Recommended enclosures
| Sealed (Qtc 0.707) — Vb | 15.6 L |
| Sealed — Fc / F3 | 59.0 / 59.0 Hz |
| Ported (suggested) — Vb | 32.7 L |
| Ported — Fb / F3 | 33.6 / 31.0 Hz |
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About this driver
The Dayton Audio RS180-4 is a 7″ woofer with a free-air resonance of 38.4 Hz and a total Q (Qts) of 0.46. Its efficiency-bandwidth product (EBP) of 65 points toward either alignment. In a 15.6 L sealed box it reaches an F3 of 59.0 Hz (Qtc 0.707); a suggested 32.7 L box tuned to 33.6 Hz extends to about 31.0 Hz. See the sealed vs ported guide for how to choose.
NOMINAL/manufacturer (Dayton spec sheet). Fs 38.4 Hz; Vas 21.2 L; Sd 124.7 cm2; BL 4.71 Tm; Mms 17.8 g; sensitivity 89.2 dB (2.83V/1m); usable 39-3600 Hz; Xmax 6 mm; 60 W. Aluminum Reference cone (sharp metal breakup above the passband - cross >=2 oct below; datasheet prints no breakup-peak Hz). Earlier seed (Fs 38, 84 dB, 120 W) was headline - corrected to datasheet.
Recommended partners
modeled estimateThe tweeters below pair well with the Dayton Audio RS180-4 in a two-way design — each grade is a modeled estimate of the crossover match, with a suggested crossover point. Open any pair in the guided builder to design the crossover and total the parts.
- Seas 27TBFC/G H1212-06Good match· 92/100
Suggested crossover 1.31 kHz (4th-order, Linkwitz-Riley)
Build this pair → - SB Acoustics SB29RDC-C000-4Good match· 90/100
Suggested crossover 1.31 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio RS28F-4Good match· 88/100
Suggested crossover 1.31 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Peerless by Tymphany D27TG35-06Good match· 83/100
Suggested crossover 1.37 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio ND25FA-4Moderate match· 53/100
Suggested crossover 2.02 kHz (4th-order, Linkwitz-Riley)
Build this pair →
Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.