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ESX Quantum Q208A 8" (20cm) Active Enclosed Subwoofer
SKU:  Q208A
EAN:  4251476406162
150 Watt

Quantum Q208A

SKU:  Q208A
EAN:  4251476406162

Technical Highlights

  • 150 watts RMS, 300 watts max., integrated Class A/B amplifier.
  • Bass boost 0-18 dB at 45 Hz, phase shift 0/180°.
  • LPF 50-150 Hz, subsonic filter 20 Hz fixed, RCA inputs.
  • More technical details
€229,00
€229,00 €229,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Delivery
Jun 5, - Jun 8,
x piece
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Quantum Q208A by ESX

The ESX Quantum Q208A is an 8-inch active enclosure subwoofer with an integrated Class A/B Amplifier and 150 Watts RMS. The system features dual side-mounted passive woofers, protected by metal covers. The enclosure is made of sturdy aluminum and measures 249 x 78 x 346 mm. The low-pass filter is adjustable from 50 to 150 Hz. The bass boost is set at 0–18 dB at 45 Hz, complemented by a phase shift of 0/180°. A subsonic filter is fixed at 20 Hz. Features include RCA and high-level inputs, an automatic power-on function, and a cable-controlled bass remote. Compared to the previous model, the power is 50% higher, with a maximum output of 300 Watts.

Features
  • 8-inch (20 cm) active enclosure subwoofer
  • Sturdy aluminum enclosure
  • 2 side passive woofers
  • Metal covers
  • Integrated Class A/B Amplifier
  • Automatic power-on function
  • RCA inputs
  • High-level inputs
  • Bass remote control (cable-operated)
  • 50% more power than the previous model
Technical Specifications
  • Rated power 150 Watts RMS
  • Maximum power 300 Watts
  • Low-pass filter 50–150 Hz
  • Bass boost 0–18 dB at 45 Hz
  • Phase shift 0/180°
  • Subsonic filter fixed at 20 Hz
  • Driver size 200 mm (8 inches)
  • Dimensions 249 x 78 x 346 mm

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ESX Quantum Q208A Datasheet

Open datasheet

Frequently Asked Questions about Quantum Q208A

How does the Quantum Q208A differ from its predecessor?

The Quantum Q208A from ESX features a built-in Class-A/B Amplifier with 150 Watts RMS, representing a 50% power increase compared to its predecessor. This increase in amplifier power significantly enhances the bass signal output. It is also characterized by a robust housing with passive woofers on both sides, creating a strong bass foundation despite its compact dimensions. In addition to power, the Q208A offers useful features such as the Auto-Turn-On function, a bass remote control, and a fixed subsonic filter at 20 Hz, which not only enhance convenience but also improve sound quality.

What are the installation dimensions of the ESX Quantum Q208A?

The ESX Quantum Q208A measures 249 x 78 x 346 mm, making it ideal for installation under many vehicle seats. The compact aluminum housing allows for easy placement without intrusive installations. However, the available space should be measured accurately to ensure there is enough ventilation to prevent the amplifier from overheating. Its placement should be chosen to provide easily accessible RCA and high-level inputs necessary for a clean connection. This compactness is particularly advantageous for tight vehicle spaces.

What advantages do the passive woofers of the Quantum Q208A offer?

The passive woofers of the Quantum Q208A on both sides of the housing extend the bass foundation through passive resonance. This technique enhances bass performance without requiring additional power consumption. The advantage lies in more efficient bass amplification at the same housing size. Protected by sturdy metal covers, the woofers are safe from damage in the vehicle, contributing to greater durability. The passive technology allows the Subwoofer to produce low frequencies that are more difficult to achieve with an active system alone. This technology thus improves the overall sound in the vehicle.

How is the bass performance of the ESX Quantum Q208A optimized?

The bass performance of the ESX Quantum Q208A is optimized by features such as bass boost and the subsonic filter. The bass boost can be adjusted from 0 to 18 dB at 45 Hz to support individual listening preferences. The subsonic filter is optimized at a fixed setting of 20 Hz to eliminate unnecessary frequencies, thereby enhancing only relevant bass sounds. With the integrated bass remote control, the listener can dynamically adjust the bass level. These technological adjustments allow for a clear, intense bass reproduction that is tailored to the vehicle's acoustics.

Is the Quantum Q208A compatible with existing audio systems?

The Quantum Q208A is compatible with numerous audio systems through its high and low-level inputs. Its RCA and high-level inputs allow connection to a variety of car radios, even if only a factory radio is installed. The automatic turn-on feature ensures that the subwoofer seamlessly integrates into existing systems without requiring additional activation. As long as the vehicle's audio system has high or low-level outputs, the subwoofer can be incorporated. The design and technologies of the Q208A thus support flexible adaptation to various audio system configurations.

What role does the Class-A/B amplifier play in the Quantum Q208A?

The integrated Class-A/B amplifier in the Quantum Q208A provides 150 watts RMS power and ensures improved acoustic performance. Class-A/B combines the advantages of Class-A and Class-B amplifiers by merging linear power with low distortion and enhanced efficiency. This increase in efficiency minimizes energy consumption in the vehicle's battery system. The amplifier allows the subwoofer to reproduce deep tones clearly and powerfully. The quality and reliability of the Class-A/B design are essential for dynamic and detailed sound, especially for bass-heavy music content that is in demand in the automotive sector.

How does the bass remote control support the ESX Quantum Q208A?

The bass remote control of the ESX Quantum Q208A allows the driver to conveniently adjust the bass intensity via manual control. This control is used for fine-tuning the subwoofer while driving, without the need for physical changes to the device. Especially when you listen to different music styles, this feature is indispensable for adjusting the bass to individual preferences. The remote control provides direct influence on the bass boost and can significantly affect the sound character of playback in the vehicle. Position the remote control within reach of the driver's seat for an optimal user experience.

What functions does the automatic power-on feature of the Q208A offer?

The automatic power-on feature of the Quantum Q208A activates the Subwoofer as soon as an audio signal is detected. It simplifies the installation process since no additional control line is needed. This feature ensures a straightforward start of the Subwoofer, allowing it to operate without manual switching. It reduces energy consumption, as the Subwoofer is only active when music is actually being played. This automation is designed for fans of comfort solutions who appreciate easy and reliable integration into the vehicle's audio system without worrying about additional power-on scenarios.

How does the fixed subsonic filter of the Quantum Q208A affect the sound?

The subsonic filter of the Quantum Q208A is fixed at 20 Hz and plays a central role in protecting the Subwoofer from harmful low frequencies. By filtering out these very low frequencies, it prevents the Amplifier from wasting energy to amplify sounds that are barely audible to the human ear. This improves the efficiency of the Subwoofer and optimizes sound clarity by amplifying only relevant frequencies. Especially in music pieces with intense deep bass passages, the subsonic filter allows for clearer, more precise sound reproduction without distortion.

What phase shift settings does the Quantum Q208A offer?

The Quantum Q208A offers two phase shift settings: 0° and 180°. These settings are crucial for correctly synchronizing the Subwoofer with the rest of the audio system. Phase adjustment may be necessary if the Subwoofer causes slightly delayed bass sounds due to its placement. By switching between the phases, the user can choose the setting with the best sound coherence. For example, a 180° shift can help avoid phase issues that may arise from the Subwoofer's placement in the rear of the vehicle's interior. Correcting this phase position contributes to clearer reproduction.

Manufacturer information / responsible person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

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