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Coastal And Lanai TVs Are Hand Crafted And Take 7-10 Business Days To Ship

Sealoc SB621 Weatherproof Sound Bar

In stock
Product Details

The SB621 boasts a total of 8 weatherproof, marine-grade speakers. We included six 2.5” active drivers with Maxxbass® audio coupled with a ported enclosure that delivers rich and deep lows and authentic mids, then added two 1” super tweeters to accurately produce the high frequencies for a bright, clear audio experience. The SB621 is packed with additional features such as IP65 dust and water protection, a 12 volt power input for use in boats, RVs, UTVs and more, Bluetooth 4.0 for streaming music from your smartphone or tablet. Three DSP modes allows you to easily adjust audio settings to match the source type and an ear blistering 114 decibels of max output, without distortion, for filling large outdoor spaces. The Sealoc SB621 can sit on a table top or be mounted above or below your Sealoc outdoor TV. At 35.5" wide, the SB621 is a perfect match for our Sealoc outdoor TVs ranging from 43", to our amazingly-large 98" outdoor panel.


Warranty - 1 Year (Included)

Six (6) 2.5" talc filled polypropylene drivers
with butyl rubber surrounds
Two (2) 1" silk-dome super tweeters
DSP Modes Music
Music mode provides a wide range of highs
and lows
Movie mode boosts the mid range
Night mode reduces the bass output
Power Power Supply
100-240VAC 2 Amps Max
(240 Watts max @ 120VAC)
Power Input (Sound Bar)
12 VDC 6.5 Amps
Sound Bar Standby Power
0.3 Watts
Inputs HDMI
x1 - HDMI 2.0 with Audio Return Channel (ARC)
x1 - Bluetooth 4.0 BLE/BS.
~100m range
x1 - 3.5mm analog jack
Digital Optical
x1 - Digital fiberoptic connector (Toslink)

Audio Specifications Peak SPL
Peak Power System

160 Watts
Frequency Response
55Hz - 19,500HZ
Bass Control
Maxxbass audio control
with ported enclosure
Remote Control Quantity
Bass control, treble control, power, vol up/down, input selection, and DSP selection
General Specifications Operating Temperature
-23.33ºC - 54.44ºC
(-10ºF - 130ºF)
1 Year
Weight & Dimensions Body Size (W x H x D)
35" x 3.5" x 3.5"
(900mm x 88mm x 88mm)
Sound Bar Weight
9 lbs
Boxed Weight
11.8 lbs
VESA Mounting
6mm threaded inserts
Wall Mounting
x2 - keyhole slots

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WARNING: This product can expose you to chemicals including ethylbenzene

which is known to the State of California to cause cancer.

(For more information go to


Customer Reviews

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"And to bring the enjoyment level up by an extra notch, we installed a 55” Samsung 4k Ultra High Def outdoor-rated television. The TVs we offer come with a nano seal technology provided by Sealoc. The nano seal technology protects from: extreme temperatures, high humidity, and salt air (especially important since we are within 50 miles of the coast). It is designed for areas under an awning or covered lanai."



Find a lower price and we will match it.

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Sealoc will match the price if you buy a qualifying Sealoc product then find the identical item for less through and authorized reseller. Price matches must be requested at time of purchase or within 7 days after purchase.

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If you find a current lower price within 7 days after purchase, you can email us at or call us at 1-844-4-SEALOC. You must provide proof of purchase.

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A refund of the difference will be mailed to you, via check, within 30 days.

See Complete Price Match Policy Guidelines