3. QB251A

QB251A

5 Reviews

150 Watt

QB251A

5 Reviews

Technical Highlights

  • Power: 150 Watts RMS, 300 Watts MAX, Impedance at 45 Hz.
  • Variable low-pass filter: 50–150 Hz, aluminum heatsink.
  • RCA, high-level inputs: automatic turn-on function.
  • More technical details
€176.18
-29% €249.00 €176.18
2% discount with credit card
Incl. VAT
Estimated delivery Sep 14 to Sep 17.
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Datasheet
MB Quart-QB251A-10" (25cm) Aktiv-Gehäusesubwoofer-masori-kaufen
€176.18
€249.00 €176.18

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Product description

Discover the QB251A, a 10 inch (25 cm) active enclosure subwoofer from MB Quart, delivering powerful bass with 150 watts RMS and up to 300 watts MAX. Customize the sound with the phase switch and bass boost individually at 45 Hz. The subwoofer features an adjustable low-pass filter from 50 to 150 Hz, an automatic turn-on function, as well as RCA and high-level inputs. The aluminum heatsink enclosure ensures optimal performance, and thanks to the bass level remote control, you can conveniently adjust the sound. With its compact size of 355 x 78 x 270 mm, it can be placed flexibly.

Features

  • 25 cm subwoofer
  • 150 watts RMS
  • 300 watts MAX
  • Phase switch 0° / 180°
  • Bass boost 0-12 dB @ 45 Hz
  • Low-pass filter 50 – 150 Hz @ 12 dB
  • Automatic turn-on function
  • RCA inputs, high-level inputs
  • Aluminum heatsink enclosure
  • Bass level remote control
  • 355 x 78 x 270 mm

Datasheet

Open datasheet

Frequently asked questions about QB251A

Welche Leistung bietet der QB251A Aktiv-Gehäusesubwoofer?

The QB251A subwoofer from MB Quart offers an RMS power of 150 watts and can reach peak values of up to 300 watts MAX. These capabilities provide deep, powerful bass that enriches the sound experience in any environment. The system allows for both quiet and loud playback without compromising quality. The subwoofer is equipped with an aluminum heat sink housing, which efficiently dissipates heat and ensures optimal performance. Especially if you enjoy listening to music loudly, the QB251A offers an intense and detailed sound experience thanks to its robust construction and powerful components.

Wie kann ich den Klang des QB251A anpassen?

The QB251A features various customization options that help you shape the sound according to your preferences. A phase switch allows you to set the phase to 0° or 180° for optimal integration into your audio system. Additionally, you can increase the bass strength at 45 Hz by 0 to 12 dB with the bass boost control, ideal for fine-tuning the low frequencies to your personal taste. There is also an adjustable low-pass filter that operates in the range of 50 to 150 Hz at 12 dB to eliminate unwanted high frequencies, keeping the bass range clear and focused.

Welche Anschlussmöglichkeiten bietet der QB251A Subwoofer?

The QB251A from MB Quart is equipped with RCA and high-level inputs, ensuring flexible integration into various audio systems. The RCA inputs are ideal for direct connection to the pre-outs of an amplifier or receiver. High-level inputs allow connection to speaker outputs, which is particularly useful in systems without dedicated subwoofer connections. This versatility makes the QB251A a compatible solution for many audio setups, as it works with both older and modern devices.

Welche Funktionen zur Steuerung und Bedienung hat der QB251A?

The QB251A offers several controls that allow for comfortable operation. The bass level remote control lets you easily and directly adjust the volume and intensity of the bass from your listening position, without having to move to the subwoofer. Additionally, the subwoofer features an automatic power-on function that activates as soon as an audio signal is detected, saving energy and increasing user convenience. These features support a customization of the sound experience exactly according to your wishes and preferences, without much effort.

Wie groß ist der QB251A Subwoofer und kann er in mein Auto integriert werden?

The QB251A has a compact design with dimensions of 355 x 78 x 270 mm, making it a flexible solution for many installation locations, both in the car and at home. Due to its low height of only 78 mm, it can be easily mounted under seats or in tight spaces. The integration into your car primarily depends on the available installation locations, but it is recommended to check the space in the vehicle before installation. The compact size of the subwoofer allows for a variety of installation options to ensure a discreet and space-saving setup.

Welche Frequenzbereiche deckt der QB251A ab?

The QB251A active subwoofer from MB Quart covers a frequency range defined by an adjustable low-pass filter from 50 to 150 Hz. This filters out all frequencies above this range, which emphasizes the low frequencies more clearly and reduces unwanted high frequencies. These adjustment options allow for perfect tuning of the subwoofer to the main speaker system, ensuring a homogeneous and coherent sound reproduction. The low-pass filter, which operates with a slope of 12 dB per octave, additionally ensures that the transition to the main speakers is as seamless as possible and without tonal breaks.

Wie trägt das Aluminium-Kühlkörper-Gehäuse zur Leistung des QB251A bei?

The aluminum heat sink housing of the QB251A is crucial for the performance and longevity of the subwoofer. Aluminum is known for its excellent thermal conductivity, which means it efficiently dissipates the heat generated by the amplifier. This prevents overheating and allows the subwoofer to operate reliably and stably even under high loads. Especially in situations where the subwoofer is operated at high power for extended periods, the sophisticated housing design ensures that the electronics remain protected and performance is not compromised.

Bietet der QB251A eine Fernsteuerungsmöglichkeit für die Basspegelanpassung?

Yes, the QB251A is equipped with a bass level remote control that allows you to conveniently adjust the strength of the bass sound from your seat. This feature is particularly practical as it allows you to flexibly adapt the bass level to different music styles or acoustic environments without having to physically make changes to the subwoofer itself. In applications in vehicles or home theater systems, the remote control offers additional convenience, as the settings can be changed at any time and without effort to ensure an optimal listening experience.

Welche Besonderheiten gibt es bei der automatischen Einschaltfunktion des QB251A?

The QB251A is equipped with a practical automatic power-on feature. This allows the subwoofer to turn on by itself as soon as it detects an incoming audio signal. This eliminates the need to manually turn the subwoofer on and off, which not only provides convenience but also ensures energy efficiency, as the subwoofer automatically switches to standby mode when no signal is present. This feature is particularly useful in systems that are frequently used or installed in hard-to-reach locations, as it enables noise- and delay-free operation without manual intervention.

Wie hilft der Phasenschalter des QB251A bei der Klangoptimierung?

The phase switch of the QB251A offers a 0°/180° switching option to change the phase of the subwoofer. This function is important for optimally synchronizing the subwoofer with the main speakers in the room, especially regarding the positioning and setup of the listening system. An incorrect phase setting can lead to phase shifts that weaken or cancel out the bass. With this switching option, you can minimize disturbances in the bass range and thus achieve clear bass reproduction and a solid sound profile by simply toggling the phase until the deepest and clearest bass is reached.

Manufacturer information / responsible person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de