Short answer: the KEF Kube 15 MIE. Both are rated 3.8/5 for sound quality (#78 and #76 of 212 subwoofers), and the KEF Kube 15 MIE costs $1,499.99 against $1,599 for the ELAC Varro RS700, so with nothing between them on sound quality, price settles it.
The case for the ELAC Varro RS700: 12-inch aluminum sandwich driver with high-excursion HEX surround in a rigid sealed enclosure, backed by 700W RMS BASH power. Watch for: High power consumption and heavy 61-lb cabinet.
The case for the KEF Kube 15 MIE: Largest member of the Kube MIE series, housing a 15-inch front-firing driver in a sealed cabinet powered by 300W Class-D amplification. Watch for: Weighs 60.6 lbs (27.5 kg) with dimensions over 500mm on each side, making it a substantial presence in a room, and requires dedicated placement without easy concealment.
Buy the KEF Kube 15 MIE. Both are rated the same for sound quality, and it costs $99.01 less than the ELAC Varro RS700.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: ELAC Varro RS700 3.6 to 4.0; KEF Kube 15 MIE 3.6 to 4.0). Treat this verdict as provisional.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| ELAC Varro RS700 | KEF Kube 15 MIE | |
|---|---|---|
| Price | $1,599.00 | $1,499.99 |
| Ranked | #76 of 212 in Medium Home Subwoofers (30-75 lbs) Estimated | #78 of 212 in Medium Home Subwoofers (30-75 lbs) Estimated |
| Country | Germany | United Kingdom |
| Warranty | 3/1 | 5/2 |
| Enclosure | sealed | sealed |
| Drivers | 12” (305mm) aluminum-sandwich cone with HEX surround | 15” driver |
| Amplifier Power | 700W RMS / 1400W peak (BASH) | 300W |
| Frequency Response | 17Hz - 150Hz (in-room, manufacturer specified) | 20Hz - 140Hz (±3dB) (manufacturer specified) |
| Dimensions | 17.2”H x 16.4”W x 16.4”D (437 x 416 x 416 mm) | 20.4”H x 19.7”W x 20.3”D (519 x 500 x 515 mm) |
| Weight | 61.3 lbs (27.8 kg) | 60.6 lbs (27.5 kg) |
| Maximum SPL | - | 116 dB |
| Cabinet Color | - | black |
Related Speaker Comparisons
More worthwhile head-to-heads for ELAC Varro RS700:
- Arendal 1723 Subwoofer 1S vs ELAC Varro RS700
- REL Acoustics T/9x vs ELAC Varro RS700
- Bowers & Wilkins DB4S vs ELAC Varro RS700
- ELAC Varro RS700 vs Q Acoustics Q SUB120
- REL Acoustics T/9x vs KEF Kube 15 MIE
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
ELAC Varro RS700: $1,599.00 Estimated Amazon Crutchfield eBay
Same family: the ELAC Varro RS500 (smaller subwoofer, ranked lower, estimated 3.6/5).
Pros: 12-inch aluminum sandwich driver with high-excursion HEX surround in a rigid sealed enclosure, backed by 700W RMS BASH power. Combines clean musical speed with powerful low-end impact and app-based AutoEQ.
Cons: High power consumption and heavy 61-lb cabinet. Deep infrasonic output is limited by sealed acoustic suspension design compared to vented subwoofers.
Full ELAC Varro RS700 review and specifications →
| Released | 2023 (3 years ago) |
|---|---|
| Amplifier Power | 700W RMS / 1400W peak (BASH) |
| Country | Germany |
| Dimensions | 17.2”H x 16.4”W x 16.4”D (437 x 416 x 416 mm) |
| Drivers | 12” (305mm) aluminum-sandwich cone with HEX surround |
| Enclosure | sealed |
| Frequency Response | 17Hz - 150Hz (in-room, manufacturer specified) |
| Warranty | 3/1 |
| Weight | 61.3 lbs (27.8 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
KEF Kube 15 MIE: $1,499.99 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 12 MIE (smaller subwoofer, ranked lower, estimated 3.7/5). See every KEF Kube generation.
Pros: Largest member of the Kube MIE series, housing a 15-inch front-firing driver in a sealed cabinet powered by 300W Class-D amplification. Delivers 20Hz to 140Hz (±3dB) extension and 116dB max SPL with Music Integrity Engine DSP processing and multiple room placement presets.
Cons: Weighs 27.5 kg with dimensions over 500mm on each side, making it a substantial presence in a room, and requires dedicated placement without easy concealment.
Full KEF Kube 15 MIE review and specifications →
| Released | Feb 2024 (2 years ago) |
|---|---|
| Amplifier Power | 300W |
| Cabinet Color | black |
| Country | United Kingdom |
| Dimensions | 20.4”H x 19.7”W x 20.3”D (519 x 500 x 515 mm) |
| Drivers | 15” driver |
| Enclosure | sealed |
| Frequency Response | 20Hz - 140Hz (±3dB) (manufacturer specified) |
| Maximum SPL | 116 dB |
| Warranty | 5/2 |
| Weight | 60.6 lbs (27.5 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