Monitor Audio Cinergy Sub15
Monitor Audio’s Cinergy Sub15 brings deep sealed-bass authority to serious cinema systems, pairing a 15-inch ultra-high-excursion C-CAM driver with 600W continuous handling and extension to 17Hz. Its THX Ultra-certified credentials, formidable 120dB peak capability and dense 38.5kg construction signal a subwoofer built for controlled dynamics, cinematic scale and discreet high-end installation.
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Nicely Roasted
Sound Quality
89/100
Integration
78/100
Build Quality
92/100
Features Connectivity
80/100
Value for Money
82/100
Pros
15-inch ultra-high-excursion C-CAM driver, sealed alignment and 17Hz rated extension promise deep, controlled low-frequency performance.
THX Ultra certification, 600W continuous power handling and 120dB peak SPL indicate substantial home-cinema headroom.
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SOUND QUALITY PERFORMANCE 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.
Assessments of Build Quality, Usability, and Overall Propositions.
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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Professional reviews and sources for this product's Watt'n Potatoes analysis.
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Specifications
- THX Certification
- THX® Certified Ultra (with 2 x Cinergy Sub15’s)
- System Format
- N/A
- Sensitivity (2.83 Vrms @ 1 M)
- 86 dB @ 100 Hz
- Maximum Linear SPL**** (@1m, free space)
- Continuous 109 dB, Peak 120 dB
- Power Handling (RMS)
- Continuous 600 W, Peak* 1500 W (Band limited***)
- Nominal Impedance
- 4 Ohms
- Minimum Impedance (20 Hz - 20 kHz)
- 4 Ohms
- Recommended Low Frequency Crossover Frequency
- 40 - 100 Hz (Low Pass)
- Recommended Amp Requirements (RMS)
- Must be used with IA750-2 / IA750-4 running C Sub Profile
- Bass Alignment
- Sealed
- Port Tuning Frequency
- N/A
- LF Extension, In Wall, With Port Bungs (- 6dB)
- N/A
- LF Extension, In Free Space, No Port Bungs (- 6dB)
- 17 Hz (IA750-2 / IA750-4)
- HF Extension (-6dB)
- N/A
- Drive Unit Complement
- 1x 15" Ultra high Excursion C-CAM Driver
- External Dimensions (Cabinet Only (H x W x D))
- 540 x 540 x 280 mm (211/4 x 211/4 x 11")
- External Dimensions (Inc Grille) (H x W x D)
- N/A
- Max External Dimensions (Inc all Fittings) (H x W x D)
- 567 x 540 x 280 mm (225/16 x 211/4 x 11")
- Weight
- 38.5 kg (84 lb 12 oz)
- Conditions
- * Calculated from a peak voltage, this is not a true power figure but useful for comparisons. ** When used in an In-Wall or On-Wall configuration it is recommended to use the fitted port bungs to control bass output. This will effectively make the product a sealed box. *** Band limited with Low pass at 200 Hz, should only be used with IA800-2C and the correct speaker profile. **** Tested with a music like noise signal with distortion and power compression remaining below audible limits.
- THX
- THX® Certified Loudspeakers. THX® and the THX® Logo are the property of THX® Ltd., registered in the U.S. and other countries.
- Warranty
- Lifetime
Manufacturer's Description — Monitor Audio
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.
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Authorized dealers for Monitor Audio Cinergy Sub15
- Absolute Audio - Canada — in-store — Calgary, Alberta, Canada (website)
- Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
- Advance Audio — in-store — Wichita, Kansas, United States (website)
- AES — in-store — Mitte, Hessen, Germany (website)
- Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
- Alex Audio Video — in-store — Sofia, Sofia City Province, Bulgaria (website)
- All Elite Audio — online and in-store — Perry Hall, Maryland, United States (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Alpha Stereo — in-store — Plattsburgh, New York, United States (website)
- Ambiance Concert — in-store — Angers, Pays de la Loire, France (website)
and 180 more verified dealers