5.25-inch passive radiator
Dayton Audio ND140-PR
£10.69
SteadyParts Express · 27 in stock · Ships from United States · All 4 offers
- Fs
- 44Hz
- Sd
- 87cm²
- Xmax
- 9mm
- Mms
- 16g
- Vas
- 8L
- Qms
- 4.0
Dayton Audio ND140-PR is a 5.25-inch passive radiator. The source-backed mechanical data includes Fs 44 Hz, Vas 8.4 L, Xmax 9 mm, plus 78 cm³ Vd. bits tracks UK, EU and US shop prices, price movement, and datasheet links, with a current best price of £10.69.
Partial source evidence
No automated T/S validation result is published for this record yet.
- Manufacturer page linked
- Datasheet linked
- Canonical units normalized for comparison
- Vd can be derived from Sd and Xmax
Thiele/Small
- Fs
- 44Hz
- Qms
- 4.0
- Vas
- 8.4L
Motor and cone
- Sd
- 87cm²
- Mms
- 16g
- Xmax
- 9mm
Size and mounting
- Diameter
- 139.7mm
- Cutout
- 120.7mm
- Depth
- 63.5mm
- Weight
- 0.23kg
Other published values
- Cms
- 0.79mm/N
Everything else Dayton Audio lists
LF · Primary · 5.25″
- Fs
- 44Hz
- Sd
- 87cm²
- Cms
- 0.79mm/N
- Mms
- 16g
- Qms
- 4.0
- Vas
- 8.4L
- Xmax
- 9mm
- Weight
- 0.23kg
- Diameter
- 139.7mm
- Depth
- 63.5mm
- Cutout
- 120.7mm
- Parts Express5.0 out of 515 ratings · Checked 25 Oct 2026Read reviews on Parts Express
- SoundImports5.0 out of 511 ratings · Checked 25 Oct 2026Read reviews on SoundImports
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Parts Express Import VAT and duty may apply | £10.69, the lowest price | 27 in stock | Visit shop at Parts Express | |
Audiophonics Import VAT and duty may apply | £15.83 | 48% above the lowest price | Available on order | Visit shop at Audiophonics |
SoundImports Import VAT and duty may apply | £16.70 | 56% above the lowest price | Back order | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr