Martin Logan Grotto 12 Subwoofer
In stock
Stock due Late June. Order now for first delivery. Or contact us to leave a deposit.
Features
| High Level Input | No |
|---|---|
| Brand Color | None |
| Warranty The length of time your product is protected by warranty | 2 Years |
| Product Type | Other |
Tech Specs
- Model: Grotto 12
- Application: Subwoofer
- Frequency Response: 22–120 Hz ±3 dB (anechoic via LFE input)
- Low Frequency Transducer: Triple 12" (25.4 cm) hybrid woofer system consisting of one high-excursion aluminum cone in a cast aluminum basket and two aluminum cone passive radiators for enhanced low-frequency output.
- Amplifier: MartinLogan Magnitude MT2kW amplifier rated at 2000W peak (1000W continuous)
- Digital Signal Processing: Ultra high-resolution 500MHz Vojtko DSP engine with 64-bit processing
- Cabinet: Sealed 1" thick MDF cabinet with center brace and reinforced MDF woofer baffles
Controls (on backplate):
- Level: Interactive LED backlit knob (Min–Max)
- Tone Sweep: Sweep Start and Pause (with status light)
- Power Mode: On, 12V Trigger, Auto
- Wireless Audio Pairing Button (for included MartinLogan wireless transmitter)
Controls (via Bluetooth):
- Level: -40 to 12dB (Min–Max)
- Low-Pass Filter (Frequency): 35–120Hz (1° increments)
- Low-Pass Filter (Order): Bypass, Third, Fourth
- Phase: 0–180° (1° increments)
- Phase (Polarity): Normal, Inverted
- Preset Listening Modes: Movie, Music, Night
- 20–30Hz Level: ±10dB
- Anthem Room Correction (ARC Genesis): On, Off
- Tone Sweep (120–20Hz): On, Off, Pause (Frequency)
- Inputs: Line level (Left, Right, LFE), XLR (LFE), Speaker level (Left and Right, requires banana plugs)
- Wireless Input: Integrated wireless receiver with included wireless transmitter
- Outputs: RCA Sub Out (combines and repeats all incoming signals to an additional subwoofer)
- Power Draw: Max 1000W; Standby (Wireless Enabled): <2W (transmitter and subwoofer combined); Standby (Wireless Disabled): 0.5W
- Feet: Integrated anti-vibration feet (carpet spikes included)
- Weight: 82.5 lb (37.4 kg)
- Dimensions (H x W x D): 17.8" x 17.9" x 17.9" (452 mm x 454 mm x 454 mm)
- Finish: Gloss Black
Description
The Martin Logan Grotto 12 Subwoofer continues the legacy of the original Grotto series, offering a new level of performance, power, and precision in a beautifully understated form. Designed to deliver deep, articulate bass that integrates seamlessly with any high-performance audio system, the Grotto 12 combines cutting-edge engineering with Martin Logan’s signature attention to detail.
Its 12-inch Hybrid Woofer System and robust sealed cabinet produce tight, controlled low frequencies that bring music, movies, and games to life. Whether used in a dedicated listening room or as part of a home theatre system, the Grotto 12 strikes the perfect balance between elegant design and room-filling bass performance.
Hybrid Woofer System: The Ultimate Compact Powerhouse
At the heart of the Martin Logan Grotto 12 Subwoofer lies a powerful Hybrid Woofer System, engineered using advanced Klippel analysis to optimise output and minimise distortion. This system combines one active 12-inch high excursion aluminium woofer with two matching aluminium passive radiators, creating the acoustic benefits of a ported design within a more compact, sealed enclosure.
The result is powerful and extended bass with exceptional speed and control. The aluminium cones used for both active and passive elements provide strength, lightweight responsiveness, and efficient heat dissipation, ensuring accurate performance even at high output levels. Every component has been chosen to achieve maximum fidelity while maintaining the compact footprint that defines the Grotto series.
Power and Precision from the Magnitude MT-2kW Amplifier
Driving the Grotto 12 is the advanced Magnitude MT-2kW amplifier, capable of delivering 2000 watts peak power and 1000 watts RMS. This highly efficient Class-D design provides effortless control over the woofer system, enabling massive output with extremely low distortion.
The combination of brute strength and precise control ensures that bass remains clean and dynamic, whether reproducing the subtle resonance of acoustic instruments or the explosive effects of modern cinema. The amplifier is complemented by a robust sealed cabinet constructed from one-inch thick MDF with internal bracing and reinforced baffles.
This solid structure reduces unwanted resonance and maintains the clarity and authority of the Grotto 12’s low-frequency performance.
Advanced DSP and Intelligent Calibration
To match its immense power, the Martin Logan Grotto 12 features an ultra-high resolution Vojtko DSP engine, named after Martin Logan’s Chief Audio Technologist. Operating at 500MHz with 64-bit processing, this sophisticated digital system manages every aspect of subwoofer performance in real time, ensuring accuracy and transparency. The DSP allows precise control through the Martin Logan Subwoofer Control App, available for both iOS and Android devices.
Users can adjust parameters such as volume, low-pass filtering, phase, and preset listening modes directly from their seat. The Grotto 12 also supports Anthem Room Correction (ARC Genesis), an award-winning software that analyses and fine-tunes subwoofer response to perfectly match the acoustics of your listening space, ensuring the deepest and most accurate bass possible.
Reduced Vibration, Elegant Design, and Seamless Integration
The Grotto 12 Subwoofer embodies Martin Logan’s commitment to combining engineering excellence with refined aesthetics. Its gloss black finish and minimalist styling make it a discreet yet sophisticated addition to any room. Integrated anti-vibration feet reduce energy transfer to floors and walls, minimising unwanted resonance and improving overall clarity.
Optional carpet spikes are also included for enhanced performance on soft flooring. The Grotto 12’s connectivity options include RCA and XLR inputs, speaker level inputs, and wireless capability for flexible installation. By merging striking design with powerful performance and intelligent control, the Martin Logan Grotto 12 Subwoofer sets a new benchmark for compact subwoofer excellence.