HSU VTF HO TURBO User manual

Features
Doubles the low bass output.
For models that have two ports, the turbo charger allows you to operate your subwoofer in the extended bass mode with
both ports open, effectively doubling the port area. This means the subwoofer can now move as much air as two of the
subwoofers without turbo in the low bass with low turbulence.
Extends the low bass without reducing port area
For models with one port, the turbo charger allows you to extend the lower limit of the subwoofer while maintaining the
same port area (effectively doubling the port area compared to subwoofers that reduce the port area to tune the sub lower).
Turbo Manual
HO

Step 4: Subwoofer Placement
If you want the turbo to be a permanent part of your subwoofer, it may not be as convenient to use as an end table, with the turbo higher
than the arm of the sofa. It will work better behind the sofa where the height of the subwoofer plus turbo is comparable to the height
of sofa backs. Place it sideways so the
woofer fires into the back of the sofa. Give
it one to two inch spacing between the sub
and the back of the sofa. If this is practi-
cal, it should give the best upper bass
impact and hardest to localize. If this is
not practical, place it in the front corner
furthest from openings.
If using the subwoofer as an end table is
preferred, you can consider putting the
turbo in storage until you really want to
show off your system. i.e., 99% of the
time, your subwoofer serves as a nice end
table (happy wife). For the last 1% of the
time, it transforms into a wall shaking
monster (happy hubby).
That is it! Now sit back and enjoy ultra
clean low bass.
Set-Up
Step 1: Unpacking
Inspect the carton for damage. Look for holes or crumpled corners or edges. Open the carton. Inspect the protective bag for any rips or
tears that may have occurred during shipping. Look for possible damage near where the carton has crumpled or where there are holes in
the carton. If there is damage, call the shipping company to report damage. Take photos of the damage. If all is fine, go to the next step.
Step 2: Installing the Turbo
The turbo sits on top of the subwoofer, at the rear end of the subwoofer.
First place the high friction pad on the top of the subwoofer at the
back end. Next, place the turbo on top of the friction pad. The flares
should be nearer the top of the turbo enclosure. The ‘U’bend should fit
snugly into the flares of the subwoofer the turbo sits on. If necessary,
the port(s) can be rotated to fit properly.
Step 3: Setting the Controls on the Amplifier
Twin Port Subwoofers
The turbo allows twin port subwoofers (e.g., VTF-3 HO) to operate in extended bass mode with both ports open, making its performance
in the low bass equal two such subwoofers without turbo. Set the bass extension switch to max extension mode. For example, for the
VTF-3 HO, set switch to ‘16 Hz/1 Port Open Or With Turbo’.
Single Port Subwoofers
The turbo allows single port subwoofers (e.g., VTF-2 HO) to operate lower without having to reduce the cross-sectional area of the
port. In the case of the VTF-2 HO, the turbo allows the VTF-2 HO to have the same air moving capability in the sub 20 Hz range as a
TN1220HO. Set the bass extension switch to ‘With Turbo’ option.

Specifications
Twin Turbo Single Turbo
Cabinet Dimensions 10.5˝(h)/17˝(w)/11.5˝(d) 10.5˝(h)/13˝(w)/8.5˝(d)
Shipping Weight 23 lbs. 13 lbs.
HSU Speaker
System Limited
Warranty
If the speaker system proves to be defective
in materials or workmanship within seven
years from the date of the original customer’s
purchase, we will, at our option, repair or
replace the defective product.
*DISCLAIMER
THE WARRANTY STATED HEREIN IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING MERCHANTABILITY AND
FITNESS FOR PARTICULAR PURPOSE AND ALL
OTHER LIABILITIES AND OBLIGATIONS OF HSU ,
ALL OF WHICH ARE EXPRESSLY DISCLAIMED. HSU
HAS NOT MADE AND DOES NOT HEREBY MAKE
ANY OTHER REPRESENTATION, WARRANTY OR
COVENANT WITH RESPECT TO THE CONDITION,
QUALITY, DURABILITY, DESIGN, OPERATION,
CAPACITY, FITNESS FOR USE OR SUITABILITY OF
THE SPEAKER SYSTEMS.
Exclusion of
Certain Damages
HSU’s liability for any defective product is limited
to repair or replacement of the product at our
option. HSU shall not be liable for incidental or
consequential damages of any kind or character
because of product defects. Some states do not
allow limitations on how long an implied warranty
lasts and/or do not allow the exclusion or limitation
of incidental or consequential damages, so the
above limitations and exclusions may not apply.
This Warranty Does
Not Cover:
Damage caused by abuse, accident, misuse,
negligence, or improper operation.
Products that have been altered or modified.
Any product whose serial number has been
altered, defaced, or removed.
Normal wear and maintenance.
Damages caused by shipping. (All claims for
shipping damage must be made with the carrier.)
Warranty Service
Warranty service must be performed by an
authorized service center, usually a HSU
Speaker Systems dealer or its authorized
agent. You may obtain a list of authorized
service centers by writing to this address:
HSU Research, Inc.
3160 E. La Palma Ave., # D
Anaheim, CA 92806
All warranty repairs must be accompanied
by the original bill of sales. No other
document is acceptable or is required.
This warranty gives you specific legal rights,
and you may also have other rights which
vary from state to state.
Due to our continual efforts to improve product
quality as new technology and techniques
become available, HSU reserves the right to
revise its Speaker Systems specifications
without notice.