2.5-inch passive radiator
Dayton Audio ND65-PR
£7.10
Steady44% below the average of 3 shops
Parts Express · 1228 in stock · Ships from United States · All 3 offers
- Fs
- 73Hz
- Sd
- 16cm²
- Xmax
- 5mm
- Mms
- 3g
- Vas
- 0.5L
- Qms
- 2.7
Dayton Audio ND65-PR is a 2.5-inch passive radiator. The source-backed mechanical data includes Fs 73 Hz, Vas 0.5 L, Xmax 5 mm, plus 8 cm³ Vd. bits tracks UK, EU and US shop prices, price movement, and datasheet links, with a current best price of £7.10.
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
- 73Hz
- Qms
- 2.7
- Vas
- 0.5L
Motor and cone
- Sd
- 16cm²
- Mms
- 3g
- Xmax
- 5mm
Size and mounting
- Diameter
- 64.0mm
- Cutout
- 52.1mm
- Depth
- 48.0mm
- Weight
- 45.4kg
Other published values
- Cms
- 1.45mm/N
Everything else Dayton Audio lists
LF · Primary · 2.5″
- Fs
- 73Hz
- Sd
- 16cm²
- Cms
- 1.45mm/N
- Mms
- 3g
- Qms
- 2.7
- Vas
- 0.5L
- Xmax
- 5mm
- Weight
- 45.4kg
- Diameter
- 64.0mm
- Depth
- 48.0mm
- Cutout
- 52.1mm
- Parts Express4.8 out of 54 ratings · Checked 26 Oct 2026Read reviews on Parts Express
- SoundImports4.8 out of 54 ratings · Checked 26 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 | £7.10, the lowest price | 1228 in stock | Visit shop at Parts Express | |
Audiophonics Import VAT and duty may apply | £10.05 | 42% above the lowest price | In stock | Visit shop at Audiophonics |
SoundImports Import VAT and duty may apply | £20.89 | 194% above the lowest price | 5 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 20 AprSoundImports£17.54 → £20.89Up 19% from £17.54