d&b audiotechnik T-SUB, B8-SUB User Manual

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T-SUB
Manual 1.2 en

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General information

T-SUB Manual

Version: 1.2 en, 02/2017, D2601.EN .01

Copyright © 2017 by d&b audiotechnik GmbH; all rights
reserved.

Keep this document with the product or in a safe place
so that it is available for future reference.

We recommend you to regularly check the d&b website for the
latest version of this document.

When reselling this product, hand over this document to the new
owner.

If you supply d&b products, please draw the attention of your
customers to this document. Enclose the relevant documents with
the systems. If you require additional documents for this purpose,
you can order them from d&b.

d&b audiotechnik GmbH
Eugen-Adolff-Straße 134, D-71522 Backnang, Germany
T [phone], F [phone]

1 Safety precautions.............................................................. 4

1.1 Information regarding the use of loudspeakers........................ 4

2 T-SUB loudspeaker.............................................................. 5

2.1 Product description..................................................................... 5

2.2 Connections................................................................................ 5

2.3 Operation.................................................................................... 6

2.3.1 Controller settings.................................................................... 6

2.4 Technical specifications.............................................................. 7

3 Manufacturer's declarations........................................... 8

3.1 EU conformity of loudspeakers (CE symbol)............................ 8

3.1.1 WEEE Declaration (Disposal)................................................. 8

Contents

d&b T-SUB Manual 1.2 en 3

1.1 Information regarding the use of loudspeakers

Potential risk of personal injury

Never stand in the immediate vicinity of loudspeakers driven at a
high level. Professional loudspeaker systems are capable of
causing a sound pressure level detrimental to human health.
Seemingly non-critical sound levels (from approx. 95 dB SPL) can
cause hearing damage if people are exposed to it over a long
period.

In order to prevent accidents when deploying loudspeakers on the
ground or when flown, please take note of the following:

▪ When setting up the loudspeakers or loudspeaker stands, make

sure they are standing on a firm surface. If you place several
systems on top of one another, use straps to secure them
against movement.

▪ Only use accessories which have been tested and approved by

d&b for assembly and mobile deployment. Pay attention to the
correct application and maximum load capacity of the
accessories as detailed in our specific "Mounting instructions" or
in our "Flying system and Rigging manuals".

▪ Ensure that all additional hardware, fixings and fasteners used

for installation or mobile deployment are of an appropriate size
and load safety factor. Pay attention to the manufacturers'
instructions and to the relevant safety guidelines.

▪ Regularly check the loudspeaker housings and accessories for

visible signs of wear and tear, and replace them when
necessary.

▪ Regularly check all load bearing bolts in the mounting devices.

Potential risk of material damage

Loudspeakers produce a static magnetic field even if they are not
connected or are not in use. Therefore make sure when erecting
and transporting loudspeakers that they are nowhere near
equipment and objects which may be impaired or damaged by an
external magnetic field. Generally speaking, a distance of 0.5 m
(1.5 ft) from magnetic data carriers (floppy disks, audio and video
tapes, bank cards, etc.) is sufficient; a distance of more than 1 m
(3 ft) may be necessary with computer and video monitors.

1 Safety precautions

d&b T-SUB Manual 1.2 en4

2.1 Product description

The T-SUB is the subwoofer for the T-Series. It can be used to
supplement T10 cabinets in various combinations, either flown or
ground stacked. The T-SUB cabinet is an actively driven bass-reflex
design housing a long excursion 15" driver, its frequency response
extending from 47 Hz to 140 Hz.

The cabinet is constructed from marine plywood and has an impact
and weather protected PCP (Polyurea Cabinet Protection) finish.
The front of the cabinet is protected by a rigid metal grill backed
by an acoustically transparent foam. The cabinet top panel
incorporates a handle.

T-Series rigging components and arrays

Cabinets are mechanically connected using the rigging strands on
both sides of the cabinet front and a central strand at the rear of
the cabinet. All necessary rigging components are mounted to the
cabinet and are folded or slide out when needed.

A detailed description of the T-Series rigging components is given
in the T-Series Rigging manual which is provided with the Z5370 T
Flying frame.

A detailed description of planning and designing T arrays is given
in the technical information "TI 385 d&b Line array design,
d&b ArrayCalc" which is also provided with the T Flying frame.

The d&b ArrayCalc simulation software can be downloaded from
the d&b website at www.dbaudio.com.

2.2 Connections

The cabinet is fitted with NLT4 F/M connectors. All four pins of
both connectors are wired in parallel. It uses the pin assignments
2+/2–. Pins 1+/1– are designated to TOP cabinets. Using one as
the input, the second connector allows for direct connection to a
second cabinet.

The cabinet can be supplied with NL4 M or EP5 connectors as an
option.

Pin equivalents of the connector options are listed in the table
below.

NLT4 F/M

NL4 M

1+ 1– 2+ 2– n.a.

EP5 1 2 3 4 5 (SenseDrive)

d&b LoadMatch

With the d&b four channel amplifier platform, the LoadMatch
function enables the amplifier to electrically compensate for the
properties of the loudspeaker cable used without the need for an
additional sense wire. For applicable loudspeakers, LoadMatch is
therefore independent of the connector type used.

NLT4 F/M, NL4 M and EP5 connector wiring

2 T-SUB loudspeaker

d&b T-SUB Manual 1.2 en 5

d&b SenseDrive

The SenseDrive feature within D12 amplifiers enables electrical
compensation for the properties of the loudspeaker cable used.
SenseDrive requires an additional sense wire. SenseDrive is
therefore only available with EP5 connectors and 5-wire cabling
for applicable loudspeakers.

Note: When the D12 is operated in "Mix TOP/SUB mode",
the SenseDrive function is only available at the output B
connector.

2.3 Operation

NOTICE!

Only operate d&b loudspeakers with a correctly configured d&b
amplifier, otherwise there is a risk of damaging the loudspeaker
components.

Applicable d&b amplifiers:

D80/D20/D12/D6/10D/30D.

Application Setup Cabinets per

channel

T-SUB T-SUB 2

Within applicable d&b amplifiers, the controller setup is available
in Dual Channel or Mix TOP/SUB mode.

2.3.1 Controller settings

For acoustic adjustment the 100 Hz mode can be selected.

100 Hz mode

With the 100 Hz mode selected, the upper operating frequency of
the system is reduced from 140 Hz to 100 Hz.

It can be used when actively driven T-SUB subwoofers are used to
supplement TOP cabinets operated in full range mode, for
example in a distributed sound system. The 100 Hz mode can also
be used to compensate for the effect of close coupling between the
T-SUB and TOP cabinets operated in CUT mode.

d&b T-SUB Manual 1.2 en6

2.4 Technical specifications

T-SUB system data

Frequency response (–5 dB standard) 47 Hz - 140 Hz
Frequency response (–5 dB 100 Hz mode) 47 Hz - 100 Hz
Max. sound pressure (1 m, free field)
D6/10D 127 dB
D80/D20/D12/30D 130 dB

(SPLmax peak, pink noise test signal with crest factor of 4)

T-SUB loudspeaker

Nominal impedance 8 ohms
Power handling capacity (RMS/peak 10 ms) 300/1600 W
Components 15" driver with neodymium magnet
Connections 2 x NLT4 F/M

optional EP5

Pin assignment NLT4 F/M: 2+ / 2–

EP5: 3:+ / 4:–

Weight 17 kg (37 lb)

T-SUB cabinet dimensions in mm [inch]

T-SUB frequency response, standard and100 Hz modes

d&b T-SUB Manual 1.2 en 7

3.1 EU conformity of loudspeakers (CE symbol)

This declaration applies to:

d&b T-SUB loudspeaker, Z0560

manufactured by d&b audiotechnik GmbH.

All production versions of these types are included, provided they
correspond to the original technical version and have not been
subject to any later design or electromechanical modifications.

We herewith declare that said products are in conformity with the
provisions of the respective EC directives including all applicable
amendments.

A detailed declaration is available on request and can be ordered
from d&b or downloaded from the d&b website at

www.dbaudio.com.

3.1.1 WEEE Declaration (Disposal)

Electrical and electronic equipment must be disposed of separately
from normal waste at the end of its operational lifetime.

Please dispose of this product according to the respective national
regulations or contractual agreements. If there are any further
questions concerning the disposal of this product, please contact
d&b audiotechnik.

3 Manufacturer's declarations

d&b T-SUB Manual 1.2 en8

D2601.EN .01, 02/2017 © d&b audiotechnik GmbH

www.dbaudio.com