Down4Sound Speaker Drivers
Down4Sound is represented in the Load Forge catalog by 35 speaker drivers, covering 6.5" to 18". Resonance (Fs) spans 27.6–142 Hz and total Q (Qts) 0.343–1.264, so the range covers both compact sealed alignments and large vented subwoofers. Every entry below links to its Thiele/Small parameters and calculated sealed and bass-reflex box designs.
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Drivers
35
Diameter
6.5"–18"
Fs Range
27.6–142 Hz
Qts Range
0.343–1.264
Price Range
69.99–79.99
All Down4Sound Speaker Drivers — parameters & designs
| Model | Size | Fs | Qts | Vas | Price |
|---|---|---|---|---|---|
| D4S-NMR654 Neo Mid Range Speaker - 6.5 Inch, 110W RMS, 4 Ohm | 6.5" | 131 Hz | 0.59 | 3.8 L | 69.99 USD |
| D4S-NMR658 Neo Mid Range Speaker - 6.5 Inch, 110W RMS, 8 Ohm | 6.5" | 131 Hz | 0.59 | 3.8 L | 69.99 USD |
| D4S-NMR804 Neo Mid Range Speaker - 8 Inch, 120W RMS, 4 Ohm | 8" | 142 Hz | 0.67 | 9.1 L | 79.99 USD |
| D4S-NMR808 Neo Mid Range Speaker - 8 Inch, 120W RMS, 8 Ohm | 8" | 142 Hz | 0.67 | 9.1 L | 79.99 USD |
| DBz8D2 | 8" | 45 Hz | 0.461 | 4 L | — |
| DBz8D4 | 8" | 46.2 Hz | 0.466 | 3.3 L | — |
| SB8D2 | 8" | 37.1 Hz | 0.49 | 9 L | — |
| SB8D4 | 8" | 39.6 Hz | 0.543 | 9.3 L | — |
| DC-PS318D1 | 9.5" | 39.6 Hz | 0.703 | 6 L | — |
| DBz10D2 | 10" | 40.1 Hz | 0.419 | 10.2 L | — |
| DBz10D4 | 10" | 40.8 Hz | 0.42 | 8.6 L | — |
| DC-PS310D2 | 10" | 39.6 Hz | 0.703 | 6 L | — |
| DC-SHORTIE-12D4 | 10" | 45.5 Hz | 1.264 | 7.2 L | — |
| DVX10D2 | 10" | 38.1 Hz | 0.422 | 7.3 L | — |
| DVX10D4 | 10" | 38.5 Hz | 0.459 | 8.1 L | — |
| SB10D2 | 10" | 37.7 Hz | 0.427 | 25.7 L | — |
| SB10D4 | 10" | 37.7 Hz | 0.427 | 25.7 L | — |
| TCX10D1 | 10" | 40 Hz | 0.41 | 6.9 L | — |
| TCX10D2 | 10" | 39.8 Hz | 0.582 | 7.1 L | — |
| DBz12D2 | 12" | 38.1 Hz | 0.431 | 22.4 L | — |
| DBz12D4 | 12" | 39.7 Hz | 0.454 | 18.4 L | — |
| SB12D2 | 12" | 29.3 Hz | 0.478 | 46.4 L | — |
| SB12D4 | 12" | 29.9 Hz | 0.516 | 48.6 L | — |
| TCX12D1 | 12" | 36.5 Hz | 0.396 | 9.2 L | — |
| TCX12D2 | 12" | 36.2 Hz | 0.492 | 10.5 L | — |
| DBz15D2 | 15" | 39.3 Hz | 0.497 | 40.3 L | — |
| DBz15D4 | 15" | 39.6 Hz | 0.57 | 41 L | — |
| DVX15D2 | 15" | 30.4 Hz | 0.447 | 53.6 L | — |
| DVX15D4 | 15" | 30.4 Hz | 0.447 | 53.6 L | — |
| Level-6-18-m6-D1 | 15" | 27.6 Hz | 0.343 | 46.3 L | — |
| SB15D2 | 15" | 30.9 Hz | 0.689 | 91.2 L | — |
| DBz18D2 | 18" | 31.1 Hz | 0.466 | 89.8 L | — |
| DBz18D4 | 18" | 30.8 Hz | 0.506 | 101 L | — |
| DVX18D2 | 18" | 29.9 Hz | 0.472 | 102.8 L | — |
| DVX18D4 | 18" | 28 Hz | 0.541 | 119.5 L | — |
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