D B Audiotechnik V-sub Loudspeaker User Manual

V-SUB Loudspeaker

Product Information:

Product Name: V-SUB loudspeaker

Version: 1.5 en, 09/2022, D2701.EN .01

Manufacturer: d&b audiotechnik GmbH &
Co. KG

Address: Eugen-Adolff-Str. 134, D-71522
Backnang, Germany

Contact: T +49-7191-9669-0, F +49-7191-95 00
00

Description: The V-SUB is a compact
high-performance cardioid subwoofer designed for use with d&b
V-Series cabinets. It features two long excursion neodymium drivers
in an integrated cardioid setup, with an 18″ driver in a
front-facing bass-reflex design and a 12″ driver in a rear-facing
two-chamber bandpass design. The cabinet is made of marine plywood
and has a PCP (Polyurea Cabinet Protection) finish for impact and
weather protection. It has a frequency response range of 37 Hz to
115/95 Hz.

Product Usage Instructions:

1. Safety Precautions:
   • Avoid standing in the immediate vicinity of loudspeakers driven
     at high levels to prevent potential personal injury.
   • Seemingly non-critical sound levels can cause hearing damage
     over a long period, so take precautions when exposed to sound
     levels of approximately 95 dB SPL or higher.
   • Ensure loudspeakers or loudspeaker stands are set up on a firm
     surface and use straps to secure stacked systems.
   • Only use d&b approved accessories for assembly and
     deployment, following the correct application and maximum load
     capacity guidelines.
   • Use appropriate hardware, fixings, and fasteners of suitable
     size and load safety factor, following manufacturers’ instructions
     and safety guidelines.
   • Regularly check loudspeaker housings, accessories, and
     load-bearing mounting devices for wear and tear, replacing them
     when necessary.
2. Potential Risk of Material Damage:
   • Avoid placing loudspeakers near equipment or objects that may
     be impaired or damaged by an external magnetic field.
   • Maintain a distance of at least 0.5 m (1.5 ft) from magnetic
     data carriers (e.g., floppy disks, audio and video tapes, bank
     cards) to prevent material damage.
3. V-SUB Loudspeaker:
   • The V-SUB is specifically designed as a cardioid subwoofer for
     use with d&b V-Series cabinets.
   • The cabinet is constructed from marine plywood with a PCP
     finish for impact and weather protection.
   • The front of the loudspeaker cabinet is protected by a rigid
     metal grill backed by an acoustically transparent foam.
   • Each side panel features two handles for easy transportation,
     and the rear panel has four heavy-duty wheels.
   • The top panel has an M20 threaded flange to accommodate a
     loudspeaker stand for deploying TOP cabinets.

V

V-SUB Manual 1.5 en

General information
V-SUB Manual
Version: 1.5 en, 09/2022, D2701.EN .01
Copyright © 2022 by d&b audiotechnik GmbH & Co. KG; 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 & Co. KG Eugen-Adolff-Str. 134, D-71522 Backnang, Germany T +49-7191-9669-0, F +49-7191-95 00 00

Contents
1 Safety precautions…………………………………………………….. 4 2 V-SUB loudspeaker……………………………………………………. 5 2.1 Product description…………………………………………………………… 5 2.2 Connections…………………………………………………………………….. 6 2.3 Operation………………………………………………………………………… 6 2.3.1 Controller settings………………………………………………………….. 7 2.4 Technical specifications…………………………………………………….. 7 3 Manufacturer’s declarations……………………………………. 9 3.1 Conformity of loudspeakers………………………………………………. 9 3.2 WEEE Declaration (Disposal)……………………………………………. 9

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1 Safety precautions

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 deployment. Pay attention to the correct application and maximum load capacity of the accessories as detailed in our specific “Mounting instructions” or in our “Rigging manuals”.
Ensure that all additional hardware, fixings and fasteners used for 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 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.

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d&b V-SUB Manual 1.5 en

2 V-SUB loudspeaker
V-SUB loudspeaker
Cardioid dispersion pattern

2.1 Product description The V-SUB is a compact high performance cardioid subwoofer for use with d&b V-Series cabinets.
The V-SUB houses two long excursion neodymium drivers in an integrated cardioid setup: a 18″ driver in a bass-reflex design facing to the front and a 12″ driver in a two chamber bandpass design radiating to the rear. The arrangement and tuning provide a cardioid dispersion pattern using a single amplifier channel.
Its frequency response extends from 37 Hz to 115/95 Hz.
The cabinet is constructed from marine plywood and has an impact and weather protected PCP (Polyurea Cabinet Protection) finish. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam. Each side panel incorporates two handles and mounted on the rear panel are four heavy duty wheels. An M20 threaded flange in the top panel accepts a loudspeaker stand for the deployment of TOP cabinets.
V-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 fold out or slide out when needed. The rigging components are also intended to interconnect and secure V-SUB cabinets in ground stack applications.
A detailed description of the V-Series rigging components is given in the V-Series Rigging manual which is provided with the V Flying frame.
A detailed description of planning and designing V arrays is given in the technical information “TI 385 d&b Line array design, ArrayCalc” which is also provided with the V Flying frame.
The d&b ArrayCalc simulation software can be downloaded from the d&b website at www.dbaudio.com.
Cardioid dispersion Cardioid dispersion avoids unwanted energy behind the system and greatly reduces the excitation of the reverberant field at low frequencies providing the greatest accuracy of low frequency reproduction. The subwoofers can be used as stand-alone solutions or in stacked combinations with a minimum distance of 60 cm (2 ft) between adjacent cabinets or between the subwoofers and a side wall. When positioned in front of walls, the minimum distance to rear walls is maintained by the wheels mounted at the rear of the cabinet.

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NLT4 F/M, NL4 M and EP5 connector wiring
6

2.2 Connections The cabinet is fitted NLT4 F/M connectors. All four pins of both connectors are wired in parallel. The V-SUB uses the pin assignments 2+/2­. Pins 1+/1­ are designated to the V8 or V12 loudspeakers. 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 front)

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.
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/D40/D20/D12.

Amplifier output mode(s): Dual Channel or Mix TOP/SUB

Application Setup

Cabinets per channel

V-SUB

V-SUB

2*

V-SUB AP

1

* When using the D40/40D amplifiers and maximum output is required, it is recommended to only drive one V-SUB per amplifier channel. Two V-SUBs in parallel per channel are possible, but this is only recommended for applications with reduced output demand.

d&b V-SUB Manual 1.5 en

V-SUB frequency response, standard and 100 Hz modes

AP setup In connection with d&b ArrayProcessing (AP), the AP setup contains the AP data that is generated by the d&b ArrayCalc simulation software and transferred to the applicable amplifiers via the d&b Remote network (OCA/AES70) using R1. As soon as the data has been sent to the amplifiers, the AP setup is automatically activated.
2.3.1 Controller settings For acoustic adjustment the 100 Hz mode can be selected.
100 Hz mode It can be used when V subwoofers are used to supplement V-TOP cabinets operated in full range mode. The 100 Hz mode can also be used to compensate for the effect of close coupling between the subwoofer and V-TOP cabinets operated in CUT mode. With T-Series cabinets the standard mode is recommended.

2.4 Technical specifications

System data

Frequency response (­5 dB standard)

37 Hz – 115 Hz

Frequency response (­5 dB 100 Hz mode)

37 Hz – 95 Hz

Max. sound pressure (1 m, free field)

with D20/D12

133 dB

with D80/D40

137 dB

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

Loudspeaker data Nominal impedance

8 ohms

Power handling capacity (RMS/peak 10 ms)

800/3200 W

Components

1 x 18″ driver

1 x 12″ driver

Connections

NLT4 F/M

optional 2 x NL4 M or 2 x EP5

Pin assignment

NLT4 F/M and NL4 M: 2+ / 2­

EP5: 3: + / 4: ­

Weight

64 kg (141 lb)

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V-SUB cabinet dimensions in mm [inch]

8

d&b V-SUB Manual 1.5 en

3 Manufacturer’s declarations

3.1 Conformity of loudspeakers This declaration applies to:
d&b Z0518 V-SUB loudspeaker
by d&b audiotechnik GmbH & Co. KG.
All product variants 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 directives including all applicable amendments.
Detailed and applicable declarations are available on request and can be ordered from d&b or downloaded from the d&b website at www.dbaudio.com.
3.2 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.
WEEE-Reg.-Nr. DE: 13421928

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www.dbaudio.com

D2701.EN .01, 09/2022 © d&b audiotechnik GmbH & Co. KG

References

• Professional audio solutions from Germany | d&b audiotechnik