JBL Professional BASSQ User Manual

JBL®PERFORMANCE™SERIES

OWNER’S GUIDE

JBL BASSQ

™

AUTOMATIC ROOM-MODE­CORRECTION PROCESSOR

®

JBL BASSQ™AUTOMATIC ROOM-MODE-CORRECTION PROCESSOR

3 Important Safety Instructions

4 Introduction and Features

4 Included Accessories

5 Operation and Controls

8 Connecting Your JBL Performance Series System

9 Installing the JBL BassQ Processor

10 Calibration and Room Mode Correction

11 Troubleshooting

12 JBL BassQ Specifications

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance

with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat
registers, stoves or other apparatus (including amplifiers) that
produce heat.

9. Do not defeat the safety purpose of the polarized or grounding­type plug. A polarized plug has two blades with one wider than
the other. A grounding-type plug has two blades and a third
grounding prong. The wide blade or the third prong is provided
for your safety. If the provided plug does not fit into your outlet,
consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched,
particularly at plugs, convenience receptacles and the point
where they exit from the apparatus.

11. Only use attachments/accessories specified by the
manufacturer.

12. Use only with the cart, stand, tripod, bracket or
table specified by the manufacturer or sold with the
apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid
injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused
for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such
as power supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, or the apparatus has
been exposed to rain or moisture, does not operate normally or
has been dropped.

15. Do not expose this apparatus to dripping or splashing and
ensure that no objects filled with liquids, such as vases, are
placed on the apparatus.

16. To completely disconnect this apparatus from the AC Mains,
disconnect the power supply cord plug from the AC receptacle.

17. The mains plug of the power supply cord shall remain readily
operable.

18. Do not expose batteries to excessive heat such as sunshine,
fire or the like.

be of sufficient magnitude to constitute a risk of electric shock
to persons.

accompanying the product.
WARNING: To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.

The lightning flash with arrowhead symbol, within
an equilateral triangle, is intended to alert the
user to the presence of uninsulated “dangerous
voltage” within the product’s enclosure that may

The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and mainte­nance (servicing) instructions in the literature

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INTRODUCTION AND FEATURES

INTRODUCTION

Congratulations on your purchase of
this Performance
processor! You have purchased a
product that embodies the best of what

®

JBL

engineers have learned about the
emotional power of audio reproduction
in more than fifty years of preeminence
in the field. This processor has been
designed and crafted to provide the user
with a high level of sonic performance.
Special attention has been paid to
minimizing the number of components
in the audio signal path, resulting in
extremely low distortion, excellent
transient response and wide dynamic
range. JBL products set new bench­marks in audio technology and,
when used as part of a complete JBL
Performance Series system, will bring
the ambience and acoustics of some of
the world’s greatest concert halls and
theaters into your home.

To obtain the best performance from this
processor, please be sure to completely
read this user’s manual and use the JBL
BassQ processor only in accordance
with its instructions.

™

Series JBL BassQ

™

FEATURES

The JBL BassQ processor features
the following:

Minimum Phase Distortion

The algorithms used to calculate and
correct the room modes are designed
to give the best results with the least
amount of phase-induced distortion.
This is unique to the JBL BassQ
processor and is not available from
any other product.

Mono or Stereo Inputs

Supporting both LFE and stereo sub­woofer inputs allows for a greater
range of applications and allows the
JBL BassQ unit to be used with a variety
of different processors. Although the
system has been designed to work
with the rest of the Performance Series
system, including AV1 and AVA7,
the unit can be used in almost any
system and can improve the in-room
response of almost any installation.

Multiple Subwoofer Outputs

Up to four subwoofers can be optimized.
Multiple subs allow better seat-to-seat
response and can greatly improve
the listening experience over a single
subwoofer. The JBL BassQ unit allows
optimizing multiple subs to achieve
the most accurate in-room response
possible.

Auto Turn-On and Power-Sequencing

Due to the high current demands of
power amplifiers at the instant of
turn-on, the JBL BassQ processor is
equipped with a power-sequencing
circuit that turns on each amplifier in
a delayed sequence, avoiding the large
instantaneous current demand (and
possible circuit breaker tripping) that
could otherwise occur, should more than
one amplifier turn on at the same instant.

Multiple Microphone Inputs

Multiple microphones allow for the
optimization of multiple seats. This
results in a larger listening area that
benefits from a more accurate room
optimization.

Two Listening Curves

Two different playback curves have been
implemented to better match the type of
playback material. Cinema mode closely
follows the standard for playback curves
used in commercial cinemas and scoring
stages. This will allow the system to
closely match the experience of the
directors and producers of popular films
and TV shows. Music mode is a gentler
playback curve that better mimics the
frequency response in most music
production studios.

INCLUDED ACCESSORIES

(1) JBL BassQ processor
(1) Remote control
(1) 120V power cord
(1) 230V power cord
(4) Microphone
(4) Microphone bases
(8) Microphone stands

(two per microphone)
(1) Rack-mount set with hardware
(1) 3.5mm male to 3.5mm male

power trigger cable
(1) 2.5mm male to 3.5mm male

cinema/music trigger cable

4