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Monitor Audio Cinergy Sub15
The exceptional Cinergy Sub15 can be installed in the wall, stacked, or used as a floorstanding unit.
Features at a glance:
Mounted in-wall, stacked or used as a floorstander | Sized to match the Cinergy 300 speakers | Isolation feet to eliminate unwanted vibrations I Bracing/securing brackets for use in hidden sound wall | 1x 15" Ultra high Excursion C-CAM Driver | THX® Certified
True cinema sound at home
Better yet, you can combine it with other Cinergy Sub15 and Cinergy 300 units to create a hidden ‘sound wall’, delivering the kind of audio rarely experienced in the home. In order to achieve the full THX-certified experience, Cinergy Sub15 needs to be paired with Monitor Audio’s IA750-2IA750-4 installation amplifier. As such, the Cinergy Sub15 is only sold along with the IA750-2 / IA750-4, ensuring you enjoy great sound without compromise.
Spotlight: Majik House
Monitor Audio shines a spotlight on smart home technology experts Majik House, focusing on The Annexe, an immersive cinema Cinergy demonstration suite that utilises Monitor Audio's Cinergy speaker system, showing their clients what's achievable in a high-end home cinema.
Dealers selling Monitor Audio near you
The Cinergy Sub15 delivers cavernous yet controlled low end thanks to a 15" ultra-high-excursion C‑CAM driver and sealed alignment, reaching down to 17 Hz extension (with IA750 amps) and offering 600 W RMS of muscle for clean headroom. Paired THX Ultra-ready and built like a tank, it balances earth-shaking impact with tight, tuneful bass for serious home cinemas.
Pros
- Deep, controlled extension to 17 Hz from the 15" ultra-high-excursion C‑CAM driver and sealed alignment.
- Strong continuous power and headroom (600 W RMS, 1,500 W peak band-limited) with quoted high SPL capability for dynamic passages.
- Robust build and THX Certified Ultra engineering, reinforced by a hefty cabinet and lifetime warranty for long-term reliability.
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Cons
- Requires specific IA750-2/IA750-4 amplification and the C Sub Profile to achieve specified performance, limiting compatibility with third-party amps.
- Large and heavy (38.5 kg), which can complicate placement and installation in smaller rooms.
Sound Quality
89/100
Bass
90/100
15" ultra-high excursion C-CAM driver, sealed alignment, rated LF extension 17 Hz (with IA750 amps) and 600 W continuous — indicates deep, controlled low-frequency extension and authority for a sealed design.
Dynamics
88/100
High excursion 15" driver plus 600 W RMS (1500 W peak band-limited) and quoted continuous/peak SPLs (109/120 dB) suggest strong macro- and micro-dynamic capability and good headroom.
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Integration
78/100
Sealed alignment and THX Ultra pairing with two units imply ease of integration, but no reviewer outcome evidence is provided. Features ≠ Integration; add outcome evidence or lower Integration.
Build Quality
92/100
Heavy 38.5 kg cabinet, C-CAM driver material and THX Certified Ultra designation point to robust engineering and premium build; lifetime warranty further supports build confidence.
Features Connectivity
80/100
Passive baseline applied. Spec sheet shows required IA750 amp profiles and sealed/port-bung options for installation flexibility; connectivity details limited in provided data.
Value for Money
82/100
At ~$2,000, the combination of 15" driver, 17 Hz extension, THX Ultra certification and hefty power handling presents strong value for a high-end sealed subwoofer, though user-review backing is absent.
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