Short answer: the KEF Kube 12 MIE. Both are rated 3.7/5 for sound quality (#109 and #85 of 212 subwoofers), and the KEF Kube 12 MIE costs $1,099.99 against $1,199 for the Aperion Audio Bravus II 12D, so with nothing between them on sound quality, price settles it.
Why pick the Aperion Audio Bravus II 12D: 12-inch with dual 12-inch passive radiators delivers 12-inch-class performance in compact 15.5” cube.
What the KEF Kube 12 MIE does well: Sealed 12-inch front-firing driver with 300W Class-D power managed by KEF Music Integrity Engine DSP. The tradeoff: While deep and controlled for music, its 300W amplifier provides lower headroom for extreme reference movie volume compared to high-power competitor subwoofers with 800W+ amplifiers in the same price range.
Buy the KEF Kube 12 MIE. Both are rated the same for sound quality, and it costs $99.01 less than the Aperion Audio Bravus II 12D.
Worth knowing: the KEF Kube 12 MIE has not been measured yet. Its rating is estimated from related models, with a likely range of 3.5 to 3.9, so treat this verdict as provisional.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| Aperion Audio Bravus II 12D | KEF Kube 12 MIE | |
|---|---|---|
| Price | $1,199 | $1,099.99 |
| Ranked | #85 of 212 in Medium Home Subwoofers (30-75 lbs) | #109 of 212 in Medium Home Subwoofers (30-75 lbs) Estimated |
| Enclosure | passive radiator | sealed |
| Output SPL at 20 Hz | 90.0 dB | - |
| Output SPL at 25 Hz | 103.2 dB | - |
| Output SPL at 31.5 Hz | 108.3 dB | - |
| Output SPL at 40 Hz | 112.8 dB | - |
| Output SPL at 50 Hz | 115.6 dB | - |
| Output SPL at 63 Hz | 115.2 dB | - |
| Output SPL at 80 Hz | 113.7 dB | - |
| Output SPL at 100 Hz | 112.8 dB | - |
| Output SPL at 125 Hz | 112.3 dB | - |
| CEA-2010-A Average (40-80Hz) | 114.3 dB | - |
| Dimensions | 17”H x 15.5”W x 15.5”D (431.8 x 393.7 x 393.7 mm) | 16.1”H x 15.5”W x 16.1”D (410 x 393 x 410 mm) |
| Weight | 61.9 lbs (28.1 kg) | 41 lbs (18.6 kg) |
| Warranty | 10/2 | 5/2 |
| Cabinet Color | black, wood | black |
| Country | United States | United Kingdom |
| Measurement Source | Audioholics | - |
| Amplifier Power | 650W RMS | 300W |
| Frequency Response | 22-350Hz | 22Hz - 140Hz (±3dB) (manufacturer specified) |
| Drivers | 12” (305mm) driver | 12” driver |
| Maximum SPL | - | 114 dB |
Related Speaker Comparisons
More top alternatives to Aperion Audio Bravus II 12D:
- Monoprice SW-15 vs Aperion Audio Bravus II 12D
- SVS SB-3000 vs Aperion Audio Bravus II 12D
- KEF Kube 12 MIE vs SVS PC-2000 Pro
- ELAC Varro PS500 vs KEF Kube 12 MIE
- KEF Kube 12 MIE vs SVS SB-1000 PRO
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
Aperion Audio Bravus II 12D: $1,199 Aperion Audio eBay
Same family: the Aperion Audio Bravus II 8D (smaller subwoofer, estimated 2.6/5) and the Aperion Audio Bravus II 10D (smaller subwoofer, ranked lower, estimated 2.9/5). See every Aperion Audio Bravus generation.
Pros: 12-inch with dual 12-inch passive radiators delivers 12-inch-class performance in compact 15.5” cube. Best-looking sub in its class, with a high-gloss finish. Favorable measurements to JL Audio Fathom f110 at lower price with 10-year driver warranty.
Full Aperion Audio Bravus II 12D review and specifications →
| Released | Nov 2010 (15 years ago) |
|---|---|
| Amplifier Power | 650W RMS |
| CEA-2010-A Average (40-80Hz) | 114.3 dB |
| Cabinet Color | black, wood |
| Country | United States |
| Dimensions | 17”H x 15.5”W x 15.5”D (431.8 x 393.7 x 393.7 mm) |
| Drivers | 12” (305mm) driver |
| Enclosure | passive radiator |
| Frequency Response | 22-350Hz |
| Measurement Source | Audioholics |
| Output SPL at 20 Hz | 90.0 dB |
| Output SPL at 25 Hz | 103.2 dB |
| Output SPL at 31.5 Hz | 108.3 dB |
| Output SPL at 40 Hz | 112.8 dB |
| Output SPL at 50 Hz | 115.6 dB |
| Output SPL at 63 Hz | 115.2 dB |
| Output SPL at 80 Hz | 113.7 dB |
| Output SPL at 100 Hz | 112.8 dB |
| Output SPL at 125 Hz | 112.3 dB |
| Warranty | 10/2 |
| Weight | 61.9 lbs (28.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
KEF Kube 12 MIE: $1,099.99 Estimated Amazon KEF eBay
Same family: the KEF Kube 8 MIE (smaller subwoofer, estimated 3.6/5), the KEF Kube 10 MIE (smaller subwoofer, estimated 3.7/5) and the KEF Kube 15 MIE (larger subwoofer, ranked higher, estimated 3.8/5). See every KEF Kube generation.
Pros: Sealed 12-inch front-firing driver with 300W Class-D power managed by KEF Music Integrity Engine DSP. Reaches 22Hz to 140Hz (±3dB) with a peak SPL of 114dB. Three room placement presets (in-room, wall, corner) and line/speaker-level inputs provide straightforward setup for stereo and multichannel music systems.
Cons: While deep and controlled for music, its 300W amplifier provides lower headroom for extreme reference movie volume compared to high-power competitor subwoofers with 800W+ amplifiers in the same price range.
Full KEF Kube 12 MIE review and specifications →
| Released | Feb 2024 (2 years ago) |
|---|---|
| Amplifier Power | 300W |
| Cabinet Color | black |
| Country | United Kingdom |
| Dimensions | 16.1”H x 15.5”W x 16.1”D (410 x 393 x 410 mm) |
| Drivers | 12” driver |
| Enclosure | sealed |
| Frequency Response | 22Hz - 140Hz (±3dB) (manufacturer specified) |
| Maximum SPL | 114 dB |
| Warranty | 5/2 |
| Weight | 41 lbs (18.6 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