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ULTRA 6.5" Speaker for Harley (HS111)
ULTRA 6.5" Speaker for Harley (HS111)

Support Resources for the ULTRA 6.5" Speaker for Harley

Written by Aquatic AV
Updated over a week ago

What Are You Looking For?


The ULTRA 6.5″ Speakers are a great choice for anyone looking to enhance their sound for the optimal ride. With 360 Watts of audio power and adjustable tweeters to direct sound right where you want it, these speakers offer the best possible sound for Harley motorcycles. Waterproof and dustproof, the ULTRA 6.5″ Speakers are designed to stand up to the toughest environmental conditions so the music lasts ride after ride.


  • Sleek Design A complex fiber cone, silk tweeter, and aluminum basket help to create a beautiful speaker and a breathtakingly sonic experience.

  • Classic Wave Logo Badge The ULTRA 6.5″ Speakers showcase Aquatic AV’s classic wave logo badge.

  • 360W Total Power These 4ohm speakers are rated at 360W total power (180 RMS) so your ride can be heard from miles away.

  • Frequency Response 60Hz – 20kHz guarantees a rich, high-quality sound from these speakers.

  • Adjustable Tweeter Adjust and rotate the 1″ silk tweeter to direct the sound wherever you want it.

  • Amplify Your Sound Pair with one of our compatible waterproof amplifiers (AD300.2Micro, AD500.4, or AD600.5) to upgrade your sound for the ultimate audio experience even in the loudest environments.

  • Mounting ring for 5.25" installation Included into the box.

  • Multi-Environment Protection This device is fully waterproof (rated IP65) and UV/salt/fog resistant to ensure reliable performance even in the toughest conditions.

  • 2 Year Warranty This product comes with a two year warranty that can be extended with product registration online or via the Aquatic AV App.

What's in the Box?

  • 2 speakers

  • 2 Mounting Rings (for 5.25" installation)

  • 2 Grills

  • 2 Crossovers

  • 2 Crossover adaptors

Environment Installation Instruction


  • Place the mounting ring on the stock Harley-Davidson grill and secure with screws. The mounting ring is needed only when the speaker has to fit into 5.25".

  • Place the speaker on the top of the mounting rind and secure it with screws.

  • Connect the crossover adaptor box to the speaker:
    WF (red is +, black is -) - connect to the tabs on the side of the cone.
    TF (red is +, black is -) - connect to the wires going out of the speaker.
    IN (red is +, black is -) - connect to the stereo's speakers wires (or to the amplifier's speaker wires).

Frequently Asked Questions

Q1. I have installed your 6.5" speakers on my Harley, but the sound quality is not as good as advertised. Is there something I need to do to improve the sound?

A1. Make sure to check all the connections and confirm that nothing is loose. Make sure you are using the correct woofer and tweeter connections as well as correct positive and negative connections.

Q2. How do I wire these speakers with my amplifier?

A2. To install our speaker using an amplifier, make sure you connect the crossover to the amplifier instead of making a direct connection with the bike's speaker lines.

Q3. What is the warranty period for these speakers?

A3. All Aquatic AV products have 2 years warranty and another 90 days if you register your product.





Full range, 2-way Speaker





Cone Size:


Tweeter Size:

1″ /25mm

Outside Grill Diameter:


Mounting Hole Diameter:


Mounting Depth:



4 Ohm



Frequency Response:

60Hz – 20kHz

Power (Total):

360W (2x 180W)

Power (RMS):

180W (2x 90W)

Grill Material:

UV Plastic, 500hrs stable

Basket Material:


Cone Material:

Complex Fibre

Tweeter Material:

Silk Neodymium

Magnet Material:

14.3oz Neodynium

Additional Features:

Adjustable Tweeter direction


Grills, Mounting Rings & Hardware (all included)


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