Definitive Technology SuperCube I User Manual

5. Your subwoofer contains a powerful amplifier inside its cabinetry. When
placing the subwoofer into a built-in cabinet, please be sure it receives
a clear flow of cooling air. If your subwoofer is to be located in a closed-
back cabinet, be sure to put some ventilation holes in the cabinet back
behind the subwoofer's back panel.
Wiring Diagrams
Low-Level Connections
Most often used is the LFE connection. Most receivers, preamps and decoders
feature a mono (line level) LFE/subwoofer output intended to be used with sub-
woofers. You can feed the mono or LFE subwoofer output of your receiver or
decoder to the LFE input on the subwoofer and achieve full performance. [See
Diagram 1] Usually, these outputs have their own low-pass filter built into the
circuit, and if this is the case, you would normally input them into the LFE input.
The LFE inputs on your SuperCube sub woofer are direct coupled inputs which are
not affected by the subwoofer's low-pass filter or low-pass crossover control. If the
sub or LFE output on your receiver or decoder does not have a low-pass crossover
or you wish to use the SuperCube subwoofer's low-pass crossover and control in
This is the usual hookup with Dolby Digital®
( (+)
....... ...,~ ................... LFE
:C§)' ,' .. : .~ .. ~ .. ~. G·
-v- .V<:.Y. ·v-
. . '" ,., ,." ,.
.. ..CD
u.~
• //II
°CDO-"0
00-
101
CD
(+)\
1'0 w,rFI"dm""rCdtl"l
' .... ',.'
A,,, .. C"".~"
...
" •• , A.,"1I"
.~. "L.-Oll
+ - +
~~ @~~
~-~@m
101 101
",," "." .
• I",l "" •
(+)
tAIIIIlll ....
... 1. oo!IlIdlu
00 ...........
-=Ji,~'"Y
·1.'=rr
--
MAIN SPEAKERS
LEFT RIGHT
RECEIVER/PREAMP/DECODER
SUBWOOFER
OR LFE L R
OUT..,..
If 11f .11( ,11( .11
- +
1 (.")1(,') 1
Diagram 1

Definitive Technology SuperCube I Specifications

General

Brand	Definitive Technology
Model	SuperCube I
Category	Subwoofer
Language	English

Summary

Owner's Manual

Safety Precautions

Subwoofer Installation

Unpacking

Describes the process of carefully unpacking the subwoofer and saving packing materials for future use.

Subwoofer Placement

Provides general rules and recommendations for optimal subwoofer placement within a listening room for best performance.

Wiring Diagrams

Low-Level Connections

Details how to connect the subwoofer using RCA-type low-level audio interconnect cables from your receiver or decoder.

High-Level Speaker Wire Connections

Explains how to connect the subwoofer using speaker cables, allowing for full-range or rolled-off main speakers.

Dual Subwoofer Connections

Operating Controls

Gain Control

Explains the gain control on the back panel for adjusting the subwoofer's output level relative to other speakers.

Low Pass Filter

Describes the variable low-pass filter control (40-150 Hz) for optimizing the transition between subwoofer and main speakers.

High Pass Filter

Details the variable high-pass filter for controlling the low-frequency roll-off of main speakers.

Phase Control

Explains the continuously variable phase control (0-180 degrees) for blending subwoofer output with main speakers.

Powering Up the Active Subwoofer Section

Troubleshooting

Specifications

Limited Warranty