3.5-inch passive radiator
Dayton Audio ND90-PR
£7.85
Steady28% below the average of 3 shops
Parts Express · 231 in stock · Ships from United States · All 3 offers
- Fs
- 54Hz
- Sd
- 31cm²
- Xmax
- 9mm
- Mms
- 8g
- Vas
- 2L
- Qms
- 6.2
Dayton Audio ND90-PR is a 3.5-inch passive radiator. The source-backed mechanical data includes Fs 54 Hz, Vas 1.5 L, Xmax 9 mm, plus 28 cm³ Vd. bits tracks UK, EU and US shop prices, price movement, and datasheet links, with a current best price of £7.85.
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
- 54Hz
- Qms
- 6.2
- Vas
- 1.5L
Motor and cone
- Sd
- 31cm²
- Mms
- 8g
- Xmax
- 9mm
Size and mounting
- Diameter
- 103.4mm
- Cutout
- 85.1mm
- Depth
- 60.7mm
- Weight
- 0.11kg
Other published values
- Cms
- 1.09mm/N
Everything else Dayton Audio lists
LF · Primary · 3.5″
- Fs
- 54Hz
- Sd
- 31cm²
- Cms
- 1.09mm/N
- Mms
- 8g
- Qms
- 6.2
- Vas
- 1.5L
- Xmax
- 9mm
- Weight
- 0.11kg
- Diameter
- 103.4mm
- Depth
- 60.7mm
- Cutout
- 85.1mm
- Parts Express4.6 out of 59 ratings · Checked 26 Oct 2026Read reviews on Parts Express
- SoundImports5.0 out of 56 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 | £7.85, the lowest price | 231 in stock | Visit shop at Parts Express | |
Audiophonics Import VAT and duty may apply | £12.48 | 59% above the lowest price | In stock | Visit shop at Audiophonics |
SoundImports Import VAT and duty may apply | £12.52 | 60% above the lowest price | 21 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr