Short answer: the Arendal Sound 1961 Bookshelf. It ranks #17 of 160 bookshelf speakers by sound quality (rated 4.2/5) at $900 and is still sold new; the KEF Q150 ranks #49 (rated 3.7/5) and is discontinued, so it is only an option used. The KEF Q150’s replacement, the KEF Q1 Meta, is rated 3.6/5.
The KEF Q150 is the more accurate, deeper-bass choice. 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. Its measured preference score, a predictor of how neutral it sounds, is 4.86 against 4.15 for the Arendal Sound 1961 Bookshelf. Its bass reaches about 51Hz before falling 3dB, against 108.4Hz for the Arendal Sound 1961 Bookshelf. 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.
The Arendal Sound 1961 Bookshelf is the better-sounding choice. Direct-to-consumer pricing at $900/pair backed by a 10-year speaker warranty (5-year on electronics) and a 60-day home audition with free return shipping. The catch: The sealed cabinet and compact 5.5” woofer cap bass extension at 108.4Hz (-3dB) / 54.9Hz (-10dB): the shallowest-extending speaker in this entire batch, a real tradeoff for the small footprint.
Buy the Arendal Sound 1961 Bookshelf. It is rated higher for sound quality, and the KEF Q150 is discontinued, so it is only available used.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| KEF Q150 | Arendal Sound 1961 Bookshelf | |
|---|---|---|
| Price | $350 per pair Discontinued | $900 per pair |
| Ranked | #49 of 160 in Medium Size Bookshelf Speakers | #17 of 160 in Medium Size Bookshelf Speakers |
| Bass Extension (-10dB) | 44Hz (measured, Erin’s Audio Corner) | 54.9Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 51Hz (measured, Erin’s Audio Corner) | 108.4Hz (measured, spinorama.org) |
| Dimensions | 11.9”H x 7.1”W x 10.9”D (303 x 180 x 278 mm) | 28.7 x 16.3 x 15cm (11.3 x 6.4 x 5.9 in) each |
| Impedance | 8 ohms nominal, about 4.7 ohms minimum (measured, Erin’s Audio Corner) | 4 ohms nominal |
| Sensitivity | ~85dB (300Hz-3kHz on-axis, measured, Erin’s Audio Corner) | 84dB (2.83V/1m) |
| Drivers | 130mm (5.25”) aluminium Uni-Q woofer, 25mm (1”) vented aluminium dome tweeter | 28mm tweeter, 5.5” woofer |
| Weight | 12.3 lbs (5.6 kg) each | 10.8 lbs (4.9 kg) each |
| Woofer Cabinet | ported, rear | Sealed |
| Spinorama Preference Score | 4.86 | 4.15 |
| Spinorama Preference Score with Perfect Sub | 7.06 | 7.14 |
| DIY Kit | No | No |
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The Two Speakers In Full
KEF Q150: $350 per pair Discontinued Amazon eBay
Newer model: the KEF Q1 Meta, ranked lower, rated 3.6/5.
Older model: the KEF Q100 (ranked lower, rated 2.4/5).
Same family: the KEF Q350 (larger bookshelf, rated 3/5), the KEF Q250c (smaller center, rated 3.9/5) and the KEF Q650c (larger center, rated 3.7/5).
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. Measured bass extension of 51Hz (-3dB), with a measured sensitivity of 85dB.
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) |
| DIY Kit | No |
| Dimensions | 11.9”H x 7.1”W x 10.9”D (303 x 180 x 278 mm) |
| 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) |
| Spinorama Preference Score | 4.86 |
| Spinorama Preference Score with Perfect Sub | 7.06 |
| Weight | 12.3 lbs (5.6 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Kef’s Cheapest Bookshelf. Is the Q150 worth your money? More from Erin’s Audio Corner →
- Erin’s Audio Corner Website KEF Q150
- GR-Research: KEF Q150… can it get any BETTER? More from GR-Research →
- Erin’s Audio Corner: 5 AWESOME SPEAKERS Under $1000 You Won’t Regret
- Erin’s Audio Corner: Budget Stereo Systems You Will Love
- Erin’s Audio Corner Measurements (spinorama.org)
- Head-to-Head Comparisons
Arendal Sound 1961 Bookshelf: $900 per pair Arendal Sound eBay
Same family: the Arendal 1961 Monitor (larger bookshelf, ranked higher, rated 4.3/5), the Arendal 1961 Tower (floorstanding, rated 4.4/5) and the Arendal Sound 1961 Center (center, rated 3.6/5).
Pros: Direct-to-consumer pricing at $900/pair backed by a 10-year speaker warranty (5-year on electronics) and a 60-day home audition with free return shipping. On-axis response is close to flat for a compact sealed design, tilting by only about 0.09dB per octave. Compact sealed 5.5” woofer + 28mm tweeter 2-way layout in a small 28.7 x 16.3 x 15cm, 4.9kg cabinet. Measured bass extension of 108.4Hz (-3dB).
Cons: The sealed cabinet and compact 5.5” woofer cap bass extension at 108.4Hz (-3dB) / 54.9Hz (-10dB): the shallowest-extending speaker in this entire batch, a real tradeoff for the small footprint. On-axis response is somewhat uneven, with an average deviation of about 0.53dB, so it is less smooth than pricier active speakers. Direct-to-consumer model means no local dealer for an in-person audition before buying (mitigated by the 60-day home trial).
Full Arendal Sound 1961 Bookshelf review and specifications →
| Bass Extension (-10dB) | 54.9Hz (measured, spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 108.4Hz (measured, spinorama.org) |
| DIY Kit | No |
| Dimensions | 28.7 x 16.3 x 15cm (11.3 x 6.4 x 5.9 in) each |
| Drivers | 28mm tweeter, 5.5” woofer |
| Impedance | 4 ohms nominal |
| Sensitivity | 84dB (2.83V/1m) |
| Spinorama Preference Score | 4.15 |
| Spinorama Preference Score with Perfect Sub | 7.14 |
| Weight | 10.8 lbs (4.9 kg) each |
| Woofer Cabinet | Sealed |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons