D&B audiotechnik Q‑SUB for Sale | 18″ Q-Series Subwoofer

The D&B audiotechnik Q‑SUB for sale is a professional 18-inch bass-reflex subwoofer developed as the low-frequency extension for compatible d&b Q-Series loudspeakers. Built around a single high-excursion 18″ driver, the Q-SUB combines a relatively compact touring enclosure with a stated frequency response down to 40 Hz, professional rigging hardware and support for both ground-stacked and appropriately configured flown systems.

For businesses already operating Q1, Q7 or other compatible Q-Series equipment, the Q-SUB offers something especially valuable: a subwoofer designed as part of the same d&b system rather than an unrelated bass cabinet that must be adapted to work with it.

A Dedicated Bass Extension for d&b Q-Series

The Q-SUB was engineered around the requirements of the Q-Series ecosystem.

Its single 18-inch driver provides the low-frequency foundation, while dedicated d&b amplifier configurations handle the required processing and protection.

This makes the cabinet suitable for professional applications where predictable system integration matters just as much as raw bass output.

Q-SUB Technical Specifications

*Maximum output depends on the amplifier and applicable measurement conditions.

Single 18-Inch High-Excursion Driver

At the heart of the cabinet is a single 18-inch high-excursion low-frequency driver.

This differs from large dual-18-inch cabinets such as the d&b B2. Instead, Q-SUB delivers Q-Series bass extension from a smaller single-driver enclosure.

Consequently, users can scale the number of cabinets according to the system size and required low-frequency output.

For example, a rental company can maintain several Q-SUBs and deploy only the quantity required for each production rather than transporting a larger subwoofer inventory to every event.

40 Hz to 130 Hz Standard Operating Range

In its standard configuration, the supplied specifications give the Q-SUB a frequency response of approximately 40 Hz to 130 Hz.

This provides useful overlap with compatible Q-Series loudspeakers and allows the subwoofer to handle the system’s main low-frequency reproduction.

However, the Q-SUB also offers an alternative 100 Hz configuration for applications requiring a different crossover relationship.

100 Hz Mode for Alternative System Configurations

Selecting the 100 Hz mode changes the cabinet’s upper operating range to approximately 100 Hz.

Therefore, the stated response becomes:

Standard: 40 Hz – 130 Hz
100 Hz mode: 40 Hz – 100 Hz

This provides professional system designers with another integration option when configuring compatible d&b loudspeakers.

Rather than treating the subwoofer as an isolated cabinet, the correct operating mode should be selected according to the complete loudspeaker system and applicable d&b documentation.

D&B audiotechnik Q‑SUB for Sale for Q1 and Q7 Systems

For businesses searching specifically for a d&b Audiotechnik Q-SUB for sale, compatibility with existing Q-Series inventory is likely to be one of the main purchasing considerations.

The cabinet was developed for integration with Q-Series systems, including Q1 and Q7 loudspeakers.

That makes additional Q-SUB cabinets useful for rental companies and venues that want to:

• Expand an existing Q-Series system
• Increase available low-frequency inventory
• Replace matching Q-SUB cabinets
• Build additional Q-Series configurations
• Maintain spare professional subwoofers

Using equipment from the same system family can also simplify processing and deployment compared with integrating an unrelated subwoofer platform.

Ground-Stacked or Flown Deployment

The Q-SUB offers useful deployment flexibility.

It can form part of appropriately designed ground-stacked systems. Additionally, its integrated Q-Series rigging hardware allows compatible professional flown configurations.

This means a system designer can choose the deployment method that best matches the production and venue.

Nevertheless, flown loudspeaker systems require correct hardware, load calculations, inspections and qualified personnel. Users should always follow the original d&b rigging documentation.

Cardioid Subwoofer Array Applications

Low-frequency energy naturally spreads in many directions, which can result in unwanted bass behind the PA.

The Q-SUB can form part of compatible Cardioid Subwoofer Array (CSA) configurations when deployed with the correct amplifier setups and cabinet arrangement.

A professionally configured cardioid array can help reduce unwanted rearward low-frequency energy while maintaining useful output toward the audience.

This can be particularly valuable at festivals, concerts and venues where excessive bass behind the system would otherwise affect the stage or surrounding areas.

SenseDrive with Compatible Configurations

Certain Q-SUB configurations can also make use of d&b SenseDrive.

With appropriate EP5 connectivity, five-wire cabling and a compatible amplifier such as the D12, SenseDrive provides additional low-frequency control through feedback from the loudspeaker connection.

However, SenseDrive compatibility depends on the exact connector, amplifier and system configuration.

Therefore, buyers specifically requiring this functionality should verify the connector type on the Q-SUB before ordering.

Amplifier Compatibility Should Be Confirmed

The Q-SUB has been used across several generations of d&b amplification.

Depending on the loudspeaker version and required operating mode, compatible amplification may include established platforms such as D12 as well as supported later d&b amplifiers.

However, amplifier compatibility should never be assumed simply because an amplifier is manufactured by d&b.

Before deployment, buyers should verify that their exact amplifier provides the correct Q-SUB loudspeaker setup and supports the intended operating mode.

Built for Professional Transport

Professional rental equipment spends a considerable amount of time moving between warehouses, trucks and venues.

For that reason, the Q-SUB incorporates practical handling features alongside its acoustic design.

The cabinet includes two recessed handles, while four heavy-duty wheels on the rear simplify movement across suitable surfaces.

At approximately 42 kg, the cabinet remains substantial, but it is considerably more manageable than many larger dual-driver touring subwoofers.

Approximate Physical Dimensions

Height: 493 mm
Width: 580 mm
Depth: 668 mm
Weight: approximately 42 kg

These relatively compact dimensions can also make the Q-SUB attractive where truck space or installation space is limited.

Rugged Cabinet Construction

The enclosure uses professional plywood construction with a durable protective finish.

A rigid metal grille protects the driver at the front, while acoustically transparent foam provides an additional protective layer.

These construction choices reflect the cabinet’s intended professional use rather than domestic or portable consumer-audio applications.

For used Q-SUBs, buyers should nevertheless inspect the enclosure, grille, wheels, connectors and driver condition before deployment.

Q-SUB Versus Larger d&b Subwoofers

The Q-SUB occupies a different role from larger d&b cabinets such as the B2.

The B2 uses a dual-18-inch design and was developed for significantly larger low-frequency requirements. Meanwhile, the Q-SUB uses a single 18-inch driver and integrates directly into the Q-Series ecosystem.

Therefore, choosing between them should depend on the complete system rather than simply selecting the physically larger cabinet.

For an existing Q-Series owner, matching Q-SUBs may provide a more practical and predictable solution.

Where the Q-SUB Works Best

The Q-SUB can support professional applications such as:

• Q-Series touring systems
• Professional PA rental
• Festivals and concerts
• Theatre productions
• Clubs and music venues
• Corporate events
• Fixed professional installations
• Event-production systems
• Existing Q1 and Q7 inventories
• Cardioid low-frequency configurations

Its combination of a single 18-inch driver, compact cabinet and system-specific processing makes it especially useful for businesses maintaining Q-Series equipment.

Why Consider a D&B audiotechnik Q‑SUB for Sale?

Purchasing a d&b Audiotechnik Q-SUB for sale can make particular sense when you already own compatible d&b equipment.

Instead of changing the entire system, additional matching Q-SUB cabinets can increase low-frequency capacity while preserving the established Q-Series workflow.

Moreover, existing d&b users may already own the appropriate amplifiers, cables, rigging hardware and processing infrastructure.

That can make expanding an existing system more straightforward than moving to a completely different loudspeaker platform.

Previous-Generation Professional d&b Equipment

Q-SUB belongs to the established Q-Series generation and is not one of d&b’s newest subwoofer models.

This should be considered an important part of the purchasing decision rather than hidden from customers.

Professional buyers should evaluate used units based on driver condition, enclosure condition, connector version, service history and compatibility with their existing amplifiers.

For companies already invested in Q-Series equipment, however, matching legacy inventory can remain commercially useful.

Finding a D&B audiotechnik Q‑SUB for Sale in Europe

Customers looking for a d&b Audiotechnik Q-SUB for sale in Europe can enquire with Euro Electronic Space about available quantities and delivery to supported destinations, including Germany, the Netherlands, France and Italy.

For multiple cabinets, freight can be arranged according to quantity and destination.

Buyers can also enquire about combining Q-SUBs with compatible Q-Series loudspeakers, amplifiers or accessories when available.

Questions Buyers Ask About Q-SUB

What driver does the Q-SUB use?

The cabinet contains one 18-inch high-excursion low-frequency driver.

How low does the Q-SUB play?

The supplied specification gives a lower frequency limit of approximately 40 Hz.

What is the standard frequency range?

Approximately 40 Hz to 130 Hz in standard operation.

Does it have a 100 Hz mode?

Yes. The alternative configuration provides a stated range of approximately 40 Hz to 100 Hz.

How much does a Q-SUB weigh?

Approximately 42 kg.

Can Q-SUB cabinets be flown?

The Q-SUB includes Q-Series rigging provisions for compatible professional configurations. Any suspended deployment must follow d&b’s applicable rigging documentation and safety requirements.

Can it be used in a cardioid configuration?

Yes, Q-SUB can form part of suitable CSA configurations when the required cabinet arrangement, amplifier setup and processing are used.

Does Q-SUB support SenseDrive?

Compatible EP5 versions can support SenseDrive when paired with the appropriate amplifier and five-wire loudspeaker cabling.