SB65WBAC25-4
UK STOCK ITEM
The SB Acoustics SB65WBAC25-4 is a 2.5 inch 4 ohm full range loudspeaker drive unit featuring a profiled aluminium cone and a neodymium magnet assembly. The geometrically furoughed cone and copper capped pole piece help control breakup and improve the high frequency response.
| Resonant frequency (fs) | 115 Hz | Nominal impedance (Zn) | 4 Ω |
| Mechanical Q factor (Qms) | 6.0 | DC resistance (Re) | 3.6 Ω |
| Electrical Q factor (Qes) | 0.77 |
Max power handling | 20 W |
| Total Q factor (Qts) | 0.68 |
Sensitivity (2.83V/1m) |
83.5dB |
| Equivalent volume (Vas) | 0.43L | Chassis (square) |
64mm |
I’m no expert when it comes to speakers, but after some research (and a strong recommendation from ChatGPT), I went with the SB Acoustics SB65WBAC25-4 as a reference full-range speaker in this size range.
Having now tested them, I can confidently say they’re probably the best speakers I’ve ever owned. The clarity is outstanding—every detail comes through with incredible precision. The bass is surprisingly full and punchy for a speaker this size, and they handle power impressively well. For anyone looking for a high-performance compact full-range driver, these are hard to beat.
Thanks for the review !
Will & Caroline
