Introducing the newest member to the Mariana family of sealed subwoofers. Our subwoofers are known for being exceptionally powerful yet articulate. Our newest subwoofer, the Mariana 18SA is constructed of 3/8” 6061-T6 aluminum and welded to be completely inert. Aluminum is four times as dense as the high-quality Baltic Birch plywood we use in our wooden enclosures. While density is important, bracing is more important, and our enclosures have exceptional bracing with the end result being an enclosure that allows the subwoofer to perform exceptionally well, without sound coloration.

Another advantage of our aluminum enclosure is the aluminum is half the thickness of our wood enclosures, which results in less material inside the enclosure and 16% more airspace for the driver as compared to our wood enclosures. So our exceptional carbon fiber driver will have more airspace to perform even better with the same enclosure dimensions.

The strong aluminum enclosure would be coated in exceptionally durable and scratch resistant powder coating in your choice of hundreds of standard colors, holographic colors, and even textures.

Please contact us at sales@deepseasound.com or 865-240-2500 to order or for any questions.  Payment can be made via PayPal or credit card.

The aluminum enclosures are built to order and require additional lead time for water jet cutting the aluminum, welding of the enclosure, and powder coating. We would prioritize the aluminum subwoofers to complete as soon as possible but may need up to 12 weeks before shipment.  Freight shipping is an additional charge.

Features
  • Incredibly powerful 18“ 4th generation driver with carbon fiber cone and over 4” peak to peak exursion *
  • 4,000 watt subwoofer amplifier (sustained power) *
  • 13-120Hz +/-1.5db (sub-9 Hz typical in-room response)
  • Inert enclosure built with 3/8” aluminum and exceptional bracing *
  • Powder coated in color of your choice for a long-lasting, durable, and scratch resistance
  • Option to have sub built as an end table
  • Round, flush inset grille with black grill cloth included
  • Rubber feet included with threaded inserts configured in a tripod orientation (2 front, 1 back).  The tripod orientation ensures the subwoofer will not be affected by an uneven floor while still providing an incredibly sturdy base and inert cabinet.
  • 21" x 21" x 20"D
  • 102 pounds - Aluminum enclosure only
  • 200 pounds - Fully assembled subwoofer (amp+driver)
  • 235 pounds - Shipping weight
  • 3.9 cu.ft. internal airspace for the enclosure

* Built in America with globally sourced components

Measurements

Ground plane measurements taken in the middle of a field with the microphone 6' from the subwoofer.  More information on measurement equipment and process can be found on the FAQs page.


Click for full size image.

 

CEA 2010-A Test Results
 Frequency

SPL at 2 m (dB)

SPL at 1 m (dB)

8 93.6 102.6
10 97.4 106.4
12.5 101.3 110.3
16 105.9 114.9
20 110.7 119.7
25 114.7 123.7
31.5 118.1 127.1
40 120.7 129.7
50 122.4 131.4
63 123.4 132.4
80 124.1 133.1
100 124.0 133.0
125 123.9 132.9
  • Amplifier - SP1-4000 (4,000w)
  • Microphone - Earthworks M50
  • Hardware - Clio FW-02
  • Software - Clio Standard 12.54
  • Temp - 77
  • Humidity - 62%
Description

Introducing the newest member to the Mariana family of sealed subwoofers. Our subwoofers are known for being exceptionally powerful yet articulate. Our newest subwoofer, the Mariana 18SA is constructed of 3/8” 6061-T6 aluminum and welded to be completely inert. Aluminum is four times as dense as the high-quality Baltic Birch plywood we use in our wooden enclosures. While density is important, bracing is more important, and our enclosures have exceptional bracing with the end result being an enclosure that allows the subwoofer to perform exceptionally well, without sound coloration.

Another advantage of our aluminum enclosure is the aluminum is half the thickness of our wood enclosures, which results in less material inside the enclosure and 16% more airspace for the driver as compared to our wood enclosures. So our exceptional carbon fiber driver will have more airspace to perform even better with the same enclosure dimensions.

The strong aluminum enclosure would be coated in exceptionally durable and scratch resistant powder coating in your choice of hundreds of standard colors, holographic colors, and even textures.

Please contact us at sales@deepseasound.com or 865-240-2500 to order or for any questions.  Payment can be made via PayPal or credit card.

The aluminum enclosures are built to order and require additional lead time for water jet cutting the aluminum, welding of the enclosure, and powder coating. We would prioritize the aluminum subwoofers to complete as soon as possible but may need up to 12 weeks before shipment.  Freight shipping is an additional charge.

Features
  • Incredibly powerful 18“ 4th generation driver with carbon fiber cone and over 4” peak to peak exursion *
  • 4,000 watt subwoofer amplifier (sustained power) *
  • 13-120Hz +/-1.5db (sub-9 Hz typical in-room response)
  • Inert enclosure built with 3/8” aluminum and exceptional bracing *
  • Powder coated in color of your choice for a long-lasting, durable, and scratch resistance
  • Option to have sub built as an end table
  • Round, flush inset grille with black grill cloth included
  • Rubber feet included with threaded inserts configured in a tripod orientation (2 front, 1 back).  The tripod orientation ensures the subwoofer will not be affected by an uneven floor while still providing an incredibly sturdy base and inert cabinet.
  • 21" x 21" x 20"D
  • 102 pounds - Aluminum enclosure only
  • 200 pounds - Fully assembled subwoofer (amp+driver)
  • 235 pounds - Shipping weight
  • 3.9 cu.ft. internal airspace for the enclosure

* Built in America with globally sourced components

Measurements

Ground plane measurements taken in the middle of a field with the microphone 6' from the subwoofer.  More information on measurement equipment and process can be found on the FAQs page.


Click for full size image.

 

CEA 2010-A Test Results
 Frequency

SPL at 2 m (dB)

SPL at 1 m (dB)

8 93.6 102.6
10 97.4 106.4
12.5 101.3 110.3
16 105.9 114.9
20 110.7 119.7
25 114.7 123.7
31.5 118.1 127.1
40 120.7 129.7
50 122.4 131.4
63 123.4 132.4
80 124.1 133.1
100 124.0 133.0
125 123.9 132.9
  • Amplifier - SP1-4000 (4,000w)
  • Microphone - Earthworks M50
  • Hardware - Clio FW-02
  • Software - Clio Standard 12.54
  • Temp - 77
  • Humidity - 62%