Peerless by Tymphany XXLS-P830845
subwoofer · EBP 46 → suits a sealed box · nominal (full) — Tymphany Peerless 830845 datasheet (manufacturer)
Thiele/Small parameters
| Fs (resonance) | 21.5 Hz |
| Qts | 0.45 |
| Qes / Qms | 0.47 / 9.68 |
| Vas | 162.5 L |
| Re / nominal Z | 5.9 Ω / 8 Ω |
| Xmax | 12.5 mm |
| Sensitivity | 87.2 dB (1 W/1 m, calc); 88 dB (2.83 V/1 m, mfr) |
| Power handling | 350 W |
Published (nominal) values, params full — verify by measurement (DATS/REW) before building. datasheet
Recommended enclosures
| Sealed (Qtc 0.707) — Vb | 110.7 L |
| Sealed — Fc / F3 | 33.8 / 33.8 Hz |
| Ported (suggested) — Vb | 233.1 L |
| Ported — Fb / F3 | 19.2 / 20.0 Hz |
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About this driver
The Peerless by Tymphany XXLS-P830845 is a 12″ subwoofer with a free-air resonance of 21.5 Hz and a total Q (Qts) of 0.45. Its efficiency-bandwidth product (EBP) of 46 points toward a sealed alignment. In a 110.7 L sealed box it reaches an F3 of 33.8 Hz (Qtc 0.707); a suggested 233.1 L box tuned to 19.2 Hz extends to about 20.0 Hz. See the sealed vs ported guide for how to choose.
NOMINAL/manufacturer (Tymphany type 830845 datasheet). Fs 21.5 Hz; Vas 162.5 L; Sd 466 cm2; BL 13.1 Tm; Mms 101.4 g; Xmax +/-12.5 mm; sensitivity 88 dB; 350 W IEC; 51 mm VC; thick Nomex cone. Earlier seed values (Fs 29, Xmax 15.2, 86 dB) belonged to a different XXLS 12in variant - corrected to the genuine 830845 (8 ohm, PE 264-1646) datasheet.
Recommended partners
modeled estimateThe tweeters below pair well with the Peerless by Tymphany XXLS-P830845 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.
- Dayton Audio RS28F-4Moderate match· 70/100
Suggested crossover 818 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Seas 27TBFC/G H1212-06Moderate match· 69/100
Suggested crossover 825 Hz (4th-order, Linkwitz-Riley)
Build this pair → - SB Acoustics SB29RDC-C000-4Moderate match· 64/100
Suggested crossover 900 Hz (4th-order, Linkwitz-Riley)
Build this pair → - Peerless by Tymphany D27TG35-06Poor match· 41/100
Suggested crossover 1.37 kHz (4th-order, Linkwitz-Riley)
Build this pair → - Dayton Audio ND25FA-4Incompatible· 0/100
Crossover not modelable yet — tweeter needs published Thiele/Small data.
Build this pair →
Modeled estimate from T/S + geometry — no measurements. The verdict is robust; it improves with measured FRD/ZMA data.