Martin Logan Unveils New Grotto Series Subwoofers: Power, Precision & Minimalist Design

MartinLogan, long celebrated for its pioneering work in high-performance audio, has officially announced the return of one of its most beloved names in bass performance: the Grotto Series. Following the successful launch of the Dynamo Foundation, Dynamo and Abyss Series in August 2024, the new Grotto line represents the next evolution in the brand's subwoofer innovation—featuring the most powerful Hybrid Woofer Systems MartinLogan has ever created.

The highly anticipated Grotto 12 and Grotto 15 will be available January 2026. To secure early access or register your interest, contact Fanthorpes HiFi today.

A Legacy Reborn: Grotto Returns with Monumental Power

"Subwoofers have been a key category for us at MartinLogan for over 20 years," says Allan Tarrant, Senior Vice President of MartinLogan. "After releasing our latest Dynamo Foundation, Dynamo and Abyss models, people kept asking us for larger, even more powerful subwoofers. Consider the veil of secrecy lifted!"

For many long-time enthusiasts, the original Grotto holds a special place. Andrew Lindsey, Product Manager at MartinLogan, recalls: "The original Grotto was the first MartinLogan product I ever owned, and it remains in use to this day. The new Grotto 12 and Grotto 15 more than carry on the legacy—delivering massive output and incredible refinement in a stylish, décor-friendly chassis."

Grotto Series: Minimalist Styling, Maximum Performance

The all-new Grotto Series retains the clean, elegant look of the original while introducing a dramatically enhanced internal architecture. Each model is engineered to provide powerful, articulate bass performance that blends seamlessly into any modern listening space.

Key Features of the Grotto 12 & Grotto 15

1. Hybrid Woofer System for Ultimate Output

A combination of:

1. A 12" or 15" active aluminium woofer, and

2. Dual, matching aluminium passive radiators

This arrangement delivers:

1. The power and low distortion of a ported design

2. The speed, tightness, and compact footprint of a sealed enclosure

Thanks to advanced Klippel analysis, these woofers achieve massive output with exceptional precision.

2. Magnitude MT-2kW Amplifier

1. Up to 2000W Peak / 1000W RMS

2. Ultra-efficient Class-D design

3. Effortless dynamics and clean, controlled power

4. Capable of driving even the most demanding rooms

3. Vojtko DSP Engine

Featuring:

1. 500MHz processing

2. 64-bit architecture

3. Advanced real-time control of all system functions

4. Full compatibility with Anthem Room Correction (ARC) for precision room tuning

4. Reinforced, Low-Resonance Cabinet Design

1. 1" thick MDF enclosure

2. Internal bracing and fortified woofer baffles

3. Engineered for accuracy, speed, and reduced unwanted vibration

5. Integrated Anti-Vibration Feet

Reduce floor and wall vibrations, improving bass cleanliness while minimizing disturbance in adjoining rooms. Ideal for both hard floors and carpets.

6. App-Based Control

With the MartinLogan Subwoofer Control App (iOS & Android), users can fine-tune:

1. Volume

2. DSP modes

3. Phase

4. Low-pass filters
   …all without leaving their listening chair.

7. Flexible Connectivity

Grotto 12 & 15 include:

1. RCA & XLR LFE inputs

2. Stereo RCA inputs

3. Speaker-level inputs

4. Subwoofer output

5. Simultaneous connection support

6. Integrated wireless receiver & transmitter

This ensures easy integration into stereo systems, home cinemas, or hybrid setups.

Pricing & Availability

1. Grotto 12 – £2359

2. Grotto 15 – £2889

3. Both models release January 2026

Register Your Interest at Fanthorpes HiFi

The MartinLogan Grotto Series is expected to be one of 2026's most in-demand premium subwoofer launches. If you want to be among the first to experience these powerful new models, contact Fanthorpes HiFi today to register your interest.

Whether you're building a high-end home theatre or enhancing a two-channel system with world-class low-frequency performance, the MartinLogan Grotto 12 and Grotto 15 deliver the perfect balance of minimalist style and maximum output.

For more information about Martin Logan call us on 01482 223096 or email shop@fanthorpes.co.uk

Trade In

At Fanthorpes we love to trade in, so if you want to trade in your existing HiFi against new HiFi, contact us and we will let you know what it is worth as a trade in.

Finance Available

We can also offer buy now pay later on orders above £400, allowing you to spread or defer your payments over a year.

Nationwide Delivery and Installation Service

When you buy equipment from Fanthorpes HiFi, we will provide a nationwide delivery and installation service within mainland UK. Our installer will drive to your house and install your new HiFi. For more information about our delivery and installation service email shop@fanthorpes.co.uk or call 01482 223096.