AV123 Onix Rocket ULW-10 Enjoyment Manual

Your Rocket ULW-10 Subwoofer

Enjoyment Guid

e

Yours Exclusively Th rough

2150 W. 6th Ave. / Suite L / B r o o m f i e ld, CO / 80020 1.877.543.7500 email : i n f o @ a v 1 2 3 . com

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Your Rocket ULW-10 Subwoofer Enjoyment Guide

Your Rocket ULW-10 Subwoofer is carefully hand-packaged utilizing molded foam inserts to protect its
fine furniture-grade finish. Please use care when unpacking your new subwoofer. When removing it
from the box, hold the wood sides of the cabinet, while taking care not to exert pressure on the front
cloth grille.

We strongly recommend that you save the foam inserts and shipping cartons to protect your speakers,
should you ever need to move or ship them to a new location.

Our thanks for buying a Rocket Series subwoofer from AV123. We sincerely appreciate your confidence
in us and our products.

Although we know these speakers represent extraordinary value, we also know that the real test is how
you feel about your speakers several months from now. That’s why AV123 will continue to work hard to
earn your respect with technical advice and customer service that is second to none in our industry.

You can visit the AV123 website (www.av123.com) at any time for up-to-date product
information, answers to FAQ’s, or to seek advice from the AV123 community at our
online forum (forum.av123.com).

Should you require that personal touch, please don’t hesitate to contact our support department,
toll-free, at [phone] option 2. You’ll find our knowledgeable Technical Services Department
eager and willing to help.

We ask you read this owner’s manual first. It contains many tips on getting your new subwoofer set up,
connected, configured, and performing its absolute best in your unique environment.
We hope you find it clear, concise, and useful.

Again, thank you for your support.

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A Suggestion

Thank you and congratulations!

At AV123, our absolute highest priority begins and ends with you, the customer. You can rest assured
that if you’re not 100% satisfied with your purchase within 30 days from original date, you may return
your product(s) for a prompt refund in full (excluding shipping charges), no questions asked. There is
simply not a safer way to buy. At AV123, misleading and high-pressure sales tactics are a thing of the
past. Not only do we offer you the tools and resources necessary to fully evaluate your purchase before
the order is placed, we’ll back each and every sale after the fact with our in-home trial period.

We’ve done our best to provide you with products and services that exceed your expectations. However,
as good as our products are, they do not match our dedication to each and every sale. Should you need
any further assistance in the future with your A/V system, you can bet that AV123 will be there support

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ing and assisting you as you make your way to your next level of audio/visual enjoyment.

Your new Rocket ULW-10 Subwoofer

The Onix Rocket ULW-10 (Ultra Linear Woofer) is a very potent and agile subwoofer.

Special care and attention was given to the ULW to ensure clean, accurate, and extremely detailed
low-end performance in both music and home theater systems. Features include a 350-watt amplifier,
single band Subwoofer Optimization System, adjustable crossover, and infinite phase adjustment for
easy in-room placement. This flexibility will result in a seamless blend with all Onix loudspeakers, as
well as those from other manufacturers.

Introduction to AV123

1.

Your Rocket ULW-10 Subwoofer Enjoyment Guide

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Table of Contents

Introduction

Section 1—Product Overview

• 1.1 Control Panel Features

• 1.2 Brass Feet, Discs, and Rubber Feet

Section 2—Subwoofer Placement and Location

• 2.1 Subwoofer Placement

• 2.2 Subwoofer Location

Section 3—Connecting Your ULW-10 Subwoofer

Section 4—Setting Up Your Surround Processor or Receiver

• 4.1 Small or Large?

• 4.2 Simple Calibration

• 4.3 Crossover Settings

• 4.4 ULW-10 Phase Adjustmen

SOS

(Subwoofer Optimizer System) SOS insert section

• Technology

• User Instructions

• Calibration Procedure

• Final System Balance

Section 5—Proper Care and Feeding

• 5.1 Warranty Policy and Terms

• 5.2 Stay in Touch!

• 5.3 ULW-10 Specifications

Included in box:

• Subwoofer

• Powercord

• Microphone

• Brass spikes

• Brass discs

2.

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Section 1—Product Overview

1.1 Control Panel Features

3.

A

B

E

C

D

H

G

F

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ULW-10

MODEL

LEVEL

0db

PRT

POWER

LFE

INPUT

MIN +15db

PHASE

120VAC~ 60Hz 300W (T4AL fuse)
230 VAC~ 50Hz 300W (T2AL fuse)

POWER

ON

OFF

CROSSOVER

Designed and Engineered in the USA

Meticulo usly Handcraft ed with Pride in the PRC

Distribu ted Worldwide E xclusively by AV123.co m

ATT ENT ION

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

CAU TIO N

WARNING

RISK OF HAZARDOUS ENERGY!
MAKE PROPER SPEAKER
CONNECTIONS. SEE OPERATING
MANUAL BEFORE USING.

ENERGIE ELECTRIQUE
DANGEREUSE.
VOIR LA INOTICE DE
FONCTIONNEMENT

AVERTISSEMENT

SERIAL NUMBER:

0 180 30Hz

100Hz

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C
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F
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N
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A

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BYPASS

MIC

INPUT

CAL’D

TEST

figure 1.1

Power switch

Power On Indicator – Glows brightly when the unit is on. Glows dimly when unit is in standby.

The unit will automatically turn on in the presence of an audio signal. Approximately 15 minutes
of signal absence will cause the subwoofer to go into standby mode. To fully turn off the unit, please
unplug it from the wall.

Line Fuse – The ULW-10 is equipped with a 4-amp fast blow fuse. Note that for 230V operation,
flip fuse holder over and replace fuse with 2amp rating. Always replace with the same rating.

Power Cord Inlet – A standard IEC socket allows removal of the power cord.

Audio Input – Standard RCA (unbalanced) type cables will work here.

Crossover Adjustment – This controls the high-frequency cut off. Generally this is should be set to 80Hz

if used, or bypass if not. We will cover this in detail later in the manual.

Phase – This controls the phase of your subwoofer relative to the rest of your speakers. Rotate this dial
in small amounts while you listen at your listening position for the most bass.

Level – This control allows you to match the output of your main/satellite speakers to the sub.
Set this to the lowest level when powering your system for the first time. When calibrating your system,
do not exceed 75% gain. You will want to allow for adjustment. Avoid setting gain levels near maximum
either in your receiver's channel-trim menus or on your subwoofer's amplifier. Avoiding doing so will
also minimize the potential for a distorted input signal.

EQ - SOS automatic parametric EQ. SOS is covered in detail in section 4.

Section 1—Product Overview

1.1 Control Panel Features (see figure 1.1)

A.

B.

C.

D.

E.

F.

G.

H.

I.

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4.

1.2 Brass Feet, Discs, and Rubber Feet

Included with your Rocket ULW-10 Subwoofer are the same high quality
threaded spike feet used on all Rocket Loudspeakers. For carpeted floors,
simply screw the spikes into the threaded inserts located on the bottom
of your ULW-10 Subwoofer. On uneven surfaces, use these feet to
help compensate.

Spike Feet

To protect your hard flooring surface, we have also included metal discs to
provide a contact point between your speaker spikes and the floor. To use,
simply place the disc under the spike such that the small indentation is
aligned with the point of each foot.

Brass Discs

As an alternative to both methods above we’ve also included soft self­adhesive rubber bumpers with your ULW-10 Subwoofer. These provide a
safe alternative to the metal spikes, and will also absorb any vibrations
between the subwoofer and underlying surface. The choice is yours for
preference and practicality, but you'll find the results to be very good either way.

Rubber Feet

Section 2—Subwoofer Placement and Location

Unlike regular loudspeakers, subwoofers will often work best when placed in a corner, even
if located a few feet to the side and/or behind the closest main speaker. Typically the front right
and left corners sound the most natural, though rear corner placement is also an acceptable option.
The driver can be facing you or be pointed along either wall. The low frequency sound waves emitted
by the ULW-10 are quite long and will therefore interact greatly with the walls of your room. As a result,
even small placement adjustments can have a significant impact on the sound you hear. A room corner
will provide maximum output at a given power level, and the maximum number of room modes will be
excited, translating to a flatter response in most rooms. Often, one rather large peak in the subwoofer’s
operational frequency range will stand out with corner placement. For this, we've also provided the
ULW-10 with the ability to alter its response for your new environment with an onboard one band
parametric equalizer (SOS). As “boomy” bass is often the result of the largest untamed peak, we're
confident that you will find this feature an indispensable tool for shaping your subwoofer into the way
you'd like to hear it: flat, clean, and powerful. More on this in section 5...

2.1 Subwoofer Placement

The low frequencies played by your ULW-10 subwoofer tend to be non-directional due the extraordi­narily long wavelengths involved. As a result, regardless of where your subwoofer is placed, it should
not be easily localized, but should instead produce a balanced and enveloping response. Factors that
can affect performance in this regard are rattles from shelves, walls, or other nearby objects, as well as
distorted output. If you are having issues with subwoofer localization, try to isolate any rattling or
buzzing objects, or place the sub in another corner of your room. If the sub's output is distorted, check
to see that you are not at the maximum sub level setting on your receiver or pre/pro. An overdriven
output can induce audible distortion. To resolve this problem, you may need to turn down the
subwoofer level on your processor and turn the gain level up on the subwoofer itself to compensate.

2.2 Subwoofer Location

Figure 2.1

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5.