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Subwoofer Manual
Features
Wireless Technology.
Contrary to popular belief, subwoofer placement is critical in order to achieve optimal sound quality . Incorporating
wireless technology in our subwoofer greatly enhances your ability to position the subwoofer for optimal performance
while still keeping the spouse happy.
Ultra Linear Woofer.
This woofer uses a patented XBL2 ™ motor design that has an incredibly linear motor force. The motor force (BL)
stays within 2% over a wide +/- 20 mm excursion. Most woofers with Xmax of +/- 20 mm would be lucky to have
the BL within 2% over a +/- 5 mm range!
Powerful BASH
Amplifier.
®
A very high headroom BASH
amplifier is used to fully utilize the ultra low distortion, ultra high output capability of
®
the woofer. This amplifier is capable of delivering up to 1000 W rms short- term power.
Great Connectivity.
Now included are more connectivity options than any other subwoofer we know of, at any price! Inputs include
balanced XLR, unbalanced RCA, wireless, and speaker level. This flexibility allows you to use the subwoofer in
recording studios, high end two channel systems, and state-of-the-art home theater systems.
Compact Enclosure.
Traditionally it has been difficult to get loud, clean, ultra deep bass from a compact enclosure. The ULS-15 changes
that. It gives you loud, clean, ultra deep bass from a compact, beautifully-finished enclosure.
Accomodates All Room Sizes.
An Ultra Low Frequency (ULF™) trim control allows you to maintain accurate deep bass response in virtually any
room, no matter what shape or size.

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Summary of Contents for HSU ULS-15

  • Page 1 Compact Enclosure. Traditionally it has been difficult to get loud, clean, ultra deep bass from a compact enclosure. The ULS-15 changes that. It gives you loud, clean, ultra deep bass from a compact, beautifully-finished enclosure.
  • Page 2: Table Of Contents

    10. Protect the power cord from being NO USER SERVICEABLE walked on or pinched particularly at plugs, convenience receptacles, and the PARTS ARE INSIDE. point where they exit from the apparatus. 11. Unplug this apparatus during lightning storms or when unused for long periods of time.
  • Page 3: Unpacking

    Set-Up Step 1: Unpacking Before unpacking, inspect the carton for puncture holes, crushed corners, etc. Take photos of any potential shipping damage before proceeding to unpack. Take note of which corner or wall the damage is on so you can check the corner/side of the subwoofer nearest the external damage. This subwoofer is very heavy.
  • Page 4: Hookup

    Step 3: Hookup We will refer to receivers, integrated amplifiers, and pre- amps as controllers. Take a look at the back of your controller. The output connectors available determine the best method of hooking up your subwoofer. Method A. Connecting to controllers with a SUBWOOFER or LFE output If you have this, you should use it.
  • Page 5: Amplifier Panel

    ULS-15 Amplifier Panel Low Level /Sub Inputs: For Dolby Digital systems, connect the SUBWOOFER OUT to Antenna: either of these inputs. For stereo-only systems, you may connect the Orient for opti- left and right channels to both inputs as explained in the manual.
  • Page 6: Volume Level

    Method C. Connecting to controllers with PRE-OUTs. This method is for stereo systems with low level pre-outs. Wireless Connection Connect the low level pre-outs to the two inputs on the wireless transmitter. Set the wireless channel on the transmitter so that it is the same as that on the subwoofer.
  • Page 7 Using the CDR to Fine Tune You can use the test tones on the CDR we provide to fine tune the subwoofer. 80 Hz is the crossover frequency used for thise example: 1. Play the 50 Hz test tone. 2. Adjust the volume on the controller to get 80 dB reading on the SPL meter placed at the listening chair. 3.
  • Page 8: Troubleshooting

    Troubleshooting If you think your subwoofer has a problem, please do everything you can to confirm the problem before contacting us for service, including reading through the troubleshooting section. Many times the problem actually is caused by other items in the system or the subwoofer’s interaction with those items.
  • Page 9: Repair

    Problem Cause Solution • Recheck the connections between the source and the subwoofer. If you are using a receiver with Dolby Digital, make sure you are connecting to the subwoofer pre-out and not the subwoofer input on the receiver. If you are using the wireless connection, make sure the transmitter is powered (l.e.d.
  • Page 10: Specifications

    HSU’s liability for any defective product is Warranty center. limited to repair or replacement of the prod- uct at our option. HSU shall not be liable for All warranty repairs must be accompanied If the speaker system proves to be incidental or consequential damages of any by the original bill of sales.
  • Page 11 Notes...
  • Page 12 HSU Research 985 N. Shepard St. Anaheim, CA 92806 1-800-554-0150 HSURESEARCH.COM...