BestVox LS3/5A Monitor Loudspeaker
Bundle offer: buy these with our No. 354 LS3/5A stands and save $174 on the stands at checkout. That's about 10% off the set at checkout.
The BestVox LS3/5A is a small two-way monitor built to the BBC LS3/5A design (BBC R&D 1976/29). It has a sealed cabinet, a 110 mm woofer and a 19 mm dome tweeter. Choose 11 Ω or 15 Ω, in Rosewood or Black Ebony veneer. Price is for a pair of speakers.
What the LS3/5A was made for
The BBC designed the LS3/5A for places with very little room, such as mobile control rooms for television. It became a standard monitor in recording studios, especially for classical music, and soon found its way into homes.
The small cabinet suits small living rooms and studies. It works best when you sit about 2 to 4 metres away.

How it sounds
The cabinet is sealed, not ported, so the bass is quick and well controlled. It also goes lower than the size suggests: 70 Hz–20 kHz ±3 dB.
The midrange is detailed and natural. Voices and acoustic instruments are where the LS3/5A is at its best, with clear stereo imaging.
Measurements
Impedance curve

Axial frequency response

LS3/5A, LS5/9 or LS3/6?
BestVox builds all three of these BBC designs. The main differences:
- LS3/5A: two-way, sealed, 305 mm tall, 70 Hz–20 kHz. For small rooms and close listening.
- LS5/9: two-way, bass reflex, 210 mm woofer, 460 mm tall, 50 Hz–20 kHz. More bass, and it plays louder.
- LS3/6: three-way with a super tweeter, 630 mm tall, 42 Hz–20 kHz. The deepest bass of the three.
Want a newer design of a similar size? The BestVox M5 is inspired by the LS3/5A.
Stands for the LS3/5A
Like every LS3/5A, it fits our No. 354 stand. The top plate is 190 × 160 mm, sized to the LS3/5A footprint, and the standard heights are 600, 650 and 700 mm. See all LS3/5A stands.
Specifications
The 11 Ω and 15 Ω versions use different drivers and crossovers, but their published specifications are the same, so the figures below apply to both.
| Type | Two-way, sealed box |
| Frequency response | 70 Hz–20 kHz ±3 dB |
| Nominal impedance | 11 Ω or 15 Ω (choose your version) |
| Sensitivity | 83 dB (1 W / 1 m) |
| Woofer | 110 mm cone |
| Tweeter | 19 mm dome |
| Recommended amplifier | 20–150 W |
| Cabinet | 12 mm birch plywood |
| Finish | Rosewood or Black Ebony veneer |
| Dimensions (H × W × D) | 305 × 190 × 165 mm |
| Weight | 5.5 kg (each speaker) |
| Sold as | A pair |
FAQ
Is the price for one speaker or a pair?
A pair. Every BestVox speaker on our site is priced per pair.
How much amplifier power does it need?
The recommended range is 20–150 W. Sensitivity is 83 dB (1 W / 1 m).
How far from the speakers should I sit?
About 2 to 4 metres. The LS3/5A was designed for close and mid-distance listening, so it suits small rooms.
Questions? Email one@myspeakerstands.com. We reply within 24 hours.
| Finish |
Rosewood, Black Ebony |
|---|---|
| Nominal Impedance |
11 Ω, 15 Ω |