Short answer: the RSL CG3M, though neither ranks well in its class. It ranks #141 of 168 bookshelf speakers by sound quality, rated 2.4/5, at $210. The Cambridge Audio Minx Min 12 ranks #144, rated 2.3/5, at $198, $12 cheaper, a saving that is not big enough to make up the sound-quality gap. Both are rated below 3.0/5 among the 168 bookshelf speakers; for better sound, the Neumi BS5 ranks #38 at $139.99.
Why pick the RSL CG3M: The current version of the RSL CG3, a compact monitor with a 4” mineral-filled aramid woofer and a 1” silk dome tweeter in RSL’s Compression Guide cabinet, with a keyhole for wall mounting. Watch for: No independent measurements yet, so its tonal balance and directivity can’t be compared with ranked speakers.
The case for the Cambridge Audio Minx Min 12: A tiny satellite speaker, under 8cm on each side, with a single 2.25” BMR driver that covers the whole range above the bass and spreads sound widely. Watch for: It is meant to be used with a subwoofer: Cambridge rates it only down to 150Hz.
Buy the RSL CG3M. It is rated higher for sound quality, and the $12 saving on the Cambridge Audio Minx Min 12 is not enough to make up the difference.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: RSL CG3M 2.0 to 2.8; Cambridge Audio Minx Min 12 1.9 to 2.7). Treat this verdict as provisional.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| RSL CG3M | Cambridge Audio Minx Min 12 | |
|---|---|---|
| Price | $210 per pair | $198 per pair |
| Ranked | #141 of 168 in Medium Size Bookshelf Speakers Estimated | #144 of 168 in Medium Size Bookshelf Speakers Estimated |
| Drivers | 1x 4” mineral-filled woven aramid fiber woofer, 1x 1” silk dome tweeter | 2.25” BMR full-range driver |
| Frequency Response | 90Hz - 20kHz (±3dB, manufacturer specified) | 150Hz-20kHz (manufacturer specified) |
| Bass Extension (-3dB) | 90Hz (manufacturer specified) | 169.5Hz (measured, Spinorama data) |
| Impedance | 4 ohms nominal (manufacturer specified) | 8 ohms |
| Sensitivity | 86.5dB (manufacturer specified) | 86dB (2.83V/1m, manufacturer specified) |
| Crossover Frequency | 2,800Hz | - |
| Recommended Power | 25W - 125W | - |
| Enclosure | Compression Guide | - |
| Weight | 6 lbs (2.7 kg) | 0.9 lbs (0.43 kg) each |
| Dimensions | 9.5”H x 5.2”W x 6.5”D (241 x 132 x 164 mm) | 3.1”H x 3.1”W x 3.3”D (78 x 78 x 85 mm) |
| Bass Extension (-10dB) | - | about 128.8Hz (measured, Spinorama data) |
| Woofer Cabinet | - | sealed |
| DIY Kit | - | No |
Related Speaker Comparisons
How RSL CG3M compares with other leading options:
- Parts Express Copperhead Desktop Kit vs RSL CG3M
- Cambridge Audio Minx Min 22 vs RSL CG3M
- Cambridge Audio Minx Min 12 vs Cambridge Audio Minx Min 22
- Micca RB42 vs JBL Control 1 Pro
- ELAC Debut 2.0 B5.2 vs Micca RB42
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
RSL CG3M: $210 per pair Estimated RSL eBay
Older model: the RSL CG3 (ranked lower, estimated 2.2/5). See every RSL CG generation.
Same family: the RSL CG23M (larger bookshelf, ranked higher, estimated 2.6/5).
Pros: The current version of the RSL CG3, a compact monitor with a 4” mineral-filled aramid woofer and a 1” silk dome tweeter in RSL’s Compression Guide cabinet, with a keyhole for wall mounting. It is the smaller partner of the RSL CG23M.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared with ranked speakers. Rated only from 90Hz at 86.5dB, so it needs a subwoofer and a little more amplifier power than its size suggests.
Full RSL CG3M review and specifications →
| Released | Oct 2022 (4 years ago) |
|---|---|
| Bass Extension (-3dB) | 90Hz (manufacturer specified) |
| Crossover Frequency | 2,800Hz |
| Dimensions | 9.5”H x 5.2”W x 6.5”D (241 x 132 x 164 mm) |
| Drivers | 1x 4” mineral-filled woven aramid fiber woofer, 1x 1” silk dome tweeter |
| Enclosure | Compression Guide |
| Frequency Response | 90Hz - 20kHz (±3dB, manufacturer specified) |
| Impedance | 4 ohms nominal (manufacturer specified) |
| Recommended Power | 25W - 125W |
| Sensitivity | 86.5dB (manufacturer specified) |
| Weight | 6 lbs (2.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Cambridge Audio Minx Min 12: $198 per pair Estimated Cambridge Audio eBay
Same family: the Cambridge Audio Minx Min 22 (larger bookshelf, ranked higher, estimated 2.4/5).
Pros: A tiny satellite speaker, under 8cm on each side, with a single 2.25” BMR driver that covers the whole range above the bass and spreads sound widely. It mounts easily on a wall or shelf. Measured bass extension of 169.5Hz (-3dB).
Cons: It is meant to be used with a subwoofer: Cambridge rates it only down to 150Hz. The only measurements, from audiore.kr, are not valid below 500Hz, so it has no preference score and the rating is estimated from that data and its size.
Full Cambridge Audio Minx Min 12 review and specifications →
| Released | Mar 2015 (11 years ago) |
|---|---|
| Bass Extension (-10dB) | about 128.8Hz (measured, Spinorama data) |
| Bass Extension (-3dB) | 169.5Hz (measured, Spinorama data) |
| DIY Kit | No |
| Dimensions | 3.1”H x 3.1”W x 3.3”D (78 x 78 x 85 mm) |
| Drivers | 2.25” BMR full-range driver |
| Frequency Response | 150Hz-20kHz (manufacturer specified) |
| Impedance | 8 ohms |
| Sensitivity | 86dB (2.83V/1m, manufacturer specified) |
| Weight | 0.9 lbs (0.43 kg) each |
| Woofer Cabinet | sealed |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons