Short answer: the KEF Q150 for better sound quality, the Jamo C 93 II for the lower price. The KEF Q150 ranks #14 of 34 bookshelf speakers at $350. The Jamo C 93 II ranks #33 at $299, $51 cheaper.
What the KEF Q150 offers: Two-way coaxial (Uni-Q) design with a 1” dome tweeter and 5.25” mid-range time-aligned in a single driver assembly, available in ported or sealed configuration. Watch for: A high-frequency lift in the estimated in-room response makes it sound noticeably brighter in an untreated room than in a heavily acoustically-treated one - a real preference factor depending on your room’s furnishings.
What the Jamo C 93 II offers: Attractive cabinet and finish for the price. Watch for: Extremely non-linear tonal balance: Erin measured treble averaging roughly 5dB above the midrange, with local swings from near the midrange level to +6dB by about 12kHz.
Buy the KEF Q150 if sound quality matters more than the price. Buy the Jamo C 93 II if the price matters more than sound quality.
If sound quality matters at all to you, skip the Jamo C 93 II. It ranks near the bottom of the 34 bookshelf speakers, so look higher up the list instead.
Specifications Side By Side
| KEF Q150 | Jamo C 93 II | |
|---|---|---|
| Price | $350 Discontinued | $299.00 |
| Ranked | #14 of 34 in Medium Size Bookshelf Speakers | #33 of 34 in Medium Size Bookshelf Speakers |
| Bass Extension (-10dB) | 44Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-3dB) | 51Hz (measured, Erin’s Audio Corner) | - |
| Dimensions | 11.9"H x 7.1"W x 10.9"D (303 x 180 x 278 mm) | 13.8"H x 7.9"W x 10.2"D (350 x 200 x 260 mm) |
| Impedance | 8 ohms nominal, about 4.7 ohms minimum (measured, Erin’s Audio Corner) | 6 ohms nominal (manufacturer specified) |
| Sensitivity | ~85dB (300Hz-3kHz on-axis, measured, Erin’s Audio Corner) | 84dB (measured average, Erin’s Audio Corner) |
| Drivers | 130mm (5.25") aluminium Uni-Q woofer, 25mm (1") vented aluminium dome tweeter | 6" HCCC cone woofer, 1" silk-dome tweeter with waveguide |
| Discontinued | Yes | - |
| Weight | 12.3 lbs / 5.6 kg each | 14.1 lbs / 6.4 kg each |
| Woofer Cabinet | ported, rear | ported, rear |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Klipsch RP-500M II vs Neumi Silk 4
- Audiofirst Fidelia vs JBL Stage A130
- JBL Stage A130 vs Klipsch RP-500M II
- KEF Q150 vs JBL Stage A120
- JBL Stage 2 250B vs Jamo C 93 II
The Two Speakers In Full
KEF Q150: $350 Discontinued Amazon
Pros: Two-way coaxial (Uni-Q) design with a 1” dome tweeter and 5.25” mid-range time-aligned in a single driver assembly, available in ported or sealed configuration. Exceptional soundstage depth, a hallmark of KEF’s coaxial designs that the reviewer says few other speakers match. Bass extension reaches into kick-drum territory, respectable for a compact bookshelf speaker. Resonances present in measurements are consistent across on- and off-axis readings, meaning they can be effectively corrected with EQ. Distortion profile is essentially the same whether run sealed or ported, since a subwoofer crossover point sits above where the differences would matter anyway. At its sale price (around $300, sometimes seen at $400), the reviewer considers it a clear step up from his previous budget favorite in this range, the Emotiva B1+, mainly due to the superior soundstage depth.
Cons: A high-frequency lift in the estimated in-room response makes it sound noticeably brighter in an untreated room than in a heavily acoustically-treated one - a real preference factor depending on your room’s furnishings. A mild dip in the 1-2kHz region reduces vocal fullness somewhat. Unexplained resonances appear in measurements and persist in both sealed and ported configurations, pointing to enclosure or panel vibration rather than the port. Horizontal radiation is narrower than the reviewer generally prefers from KEF’s lineup, with directivity that widens somewhat around 1.2kHz (near a resonance) and again above about 5kHz. Compression testing at high output (102dB) shows significant nonlinearity, especially at lower frequencies - noticeably worse than a comparable Arendal bookshelf speaker costing over twice as much, which held up better until 80Hz. Not intended for loud listening without a subwoofer - the woofer will over-exert itself without a high-pass filter, and the reviewer recommends crossing over at 80-120Hz. At full retail price (around $600/pair), the value proposition is far less certain than at sale pricing. Discontinued.
Full KEF Q150 review and specifications →
| Bass Extension (-10dB) | 44Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 51Hz (measured, Erin's Audio Corner) |
| Dimensions | 11.9"H x 7.1"W x 10.9"D (303 x 180 x 278 mm) |
| Discontinued | Yes |
| Drivers | 130mm (5.25") aluminium Uni-Q woofer, 25mm (1") vented aluminium dome tweeter |
| Impedance | 8 ohms nominal, about 4.7 ohms minimum (measured, Erin's Audio Corner) |
| Sensitivity | ~85dB (300Hz-3kHz on-axis, measured, Erin's Audio Corner) |
| Weight | 12.3 lbs / 5.6 kg each |
| Woofer Cabinet | ported, rear |
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- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Kef’s Cheapest Bookshelf. Is the Q150 worth your money?
- Erin’s Audio Corner Website KEF Q150
- GR-Research: KEF Q150… can it get any BETTER?
- Erin’s Audio Corner: 5 AWESOME SPEAKERS Under $1000 You Won’t Regret
- Erin’s Audio Corner: Budget Stereo Systems You Will Love
- Reddit Search for KEF Q150 Review
- Head-to-Head Comparisons
Jamo C 93 II: $299.00
Pros: Attractive cabinet and finish for the price. The mild midbass rise can add subjectively enjoyable punch at modest playback levels, and the speaker is reasonably compact. Erin measured about 84dB sensitivity through the midrange. Harmonic distortion at moderate output is not the central problem; the much larger limitations are frequency-response accuracy, directivity and compression.
Cons: Extremely non-linear tonal balance: Erin measured treble averaging roughly 5dB above the midrange, with local swings from near the midrange level to +6dB by about 12kHz. The result is hollow midrange, exaggerated apparent detail and a bright, fatiguing balance. Multiple diffraction discontinuities around the crossover and waveguide prevent reliable EQ correction; turning the speakers 30 degrees outward does not fix the irregularity. Midwoofer directivity narrows before the tweeter abruptly widens, indicating poor crossover/directivity matching. Vertical listening position should remain near tweeter axis. Output behavior is exceptionally poor: Erin found compression running off the plotted scale at high level and multitone distortion crossing -20dB (10%) across roughly 200Hz-1.2kHz, which produces audible grain. The grille makes response still less linear. Erin judged the cheaper Emotiva B1+ better in accuracy, soundstage and output.
Full Jamo C 93 II review and specifications →
| Dimensions | 13.8"H x 7.9"W x 10.2"D (350 x 200 x 260 mm) |
|---|---|
| Drivers | 6" HCCC cone woofer, 1" silk-dome tweeter with waveguide |
| Impedance | 6 ohms nominal (manufacturer specified) |
| Sensitivity | 84dB (measured average, Erin's Audio Corner) |
| Weight | 14.1 lbs / 6.4 kg each |
| Woofer Cabinet | ported, rear |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons