HSU VTF-2 User Manual

Features
Variable Tuning Technology.
“Now you decide how deep to play.” The large flared ports can be re-tuned with the flip of a switch and the
removal of a port plug. In Maximum Output mode, the subwoofer transforms into a different device capable
of playing louder material with less distortion at the expense of some deeper bass.
Custom built woofers.
“The end of featureless boom.” We design our woofers for sound quality, so you will hear clean and detailed
bass not found in lesser subwoofers.
Powerful BASH amplifiers.
Our custom built amplifiers work in concert with the woofer, protecting the subwoofer from damage and
keeping distortion to a minimum.
Flexible room placement.
The unobtrusive finish, rounded corners, and overall design allows for close placement next to listeners or
discreet placement in corners.
Connects to almost any system.
“Integration is easier than ever.” Thanks to modern receivers that use Dolby Digital, DTS, THX, or Bass
Management, you can connect the subwoofer to your system with one cable. If you have invested in a
stereo-only system, integration is also simple thanks to true 24 dB/Oct. crossovers.
Subwoofer Manual
MK 2

HSU VTF-2 Specifications

General

Brand	HSU
Model	VTF-2
Category	Subwoofer
Language	English

Summary

Features

Key Technologies

Variable Tuning, Custom Woofers, and Powerful BASH Amplifiers for enhanced performance.

Design and Connectivity

Flexible room placement and easy system integration features.

Safety Instructions

General Safety and Operation

Read, keep, and follow all safety and operation instructions provided.

Appliance Safety Warnings

Do not expose to moisture/heat; ensure proper ventilation and avoid water proximity.

Electrical Safety and Handling

Verify plug, cords, grounding; unplug during storms; refer servicing to qualified personnel.

Setup Procedures

Unpacking the Subwoofer

Carefully unpack, inspect for damage, and notify dealer of any issues found.

Optimal Subwoofer Placement

Follow guidelines for port clearance, monitor distance, floor type, and placement rules.

Hookup Methods

Connecting via SUBWOOFER/LFE Output

Use a standard mono interconnect cable from controller's SUBWOOFER/LFE output.

Connecting via HIGH LEVEL Speaker Outputs

Use two conductor speaker cable from controller's HIGH LEVEL speaker outputs.

Connecting via PRE-OUTs

Use a stereo RCA interconnect from controller's PRE-OUTs to subwoofer inputs.

Operation and Calibration

Initial Power-On and Volume Level

Turn on the subwoofer, set volume to match main speakers or higher for home theater.

Crossover Configuration

Configure controller or subwoofer crossover for smooth sound integration.

Fine Tuning Operations

Adjust tuning, phase, and volume using test tones for optimal performance.

Advanced Fine Tuning

Volume Calibration with SPL Meter

Use test tones and SPL meter for precise volume integration with main speakers.

Room Resonance and Equalization

Manage room resonance and equalize subwoofer response for optimal sound.

Troubleshooting - Part 1

Humming, Buzzing, and Standby Issues

Diagnose and resolve humming, buzzing, or standby mode problems.

No Subwoofer Output

Verify power, check fuses, and confirm signal path for no output issues.

Troubleshooting - Part 2

Sound and Output Troubleshooting

Address issues like no output, low bass, main speaker sound, or system thumping.

Repair Service Contact

Contact dealer or tech support for service after reviewing troubleshooting steps.

Specifications and Warranty

Product Specifications

Details technical specs: frequency response, woofer size, power, dimensions, weight, power requirement.

Warranty Terms and Service

Covers defects, excludes damages, and outlines service procedures with authorization.