MS-WBC

MS-WBC

Wireless bass-boost controller for MS Series amplifiers

Sold from 2010 until now

Made in: China

Documents & Downloads

Product Specifications

Series
MS Series
4-Ohm Power Output
Simple wireless installation

Control bass levels easily from anywhere inside your car

The MS-WBC is a radio-frequency (RF) wireless control that provides precise adjustment of bass levels for one or more JBL® MS Series car audio amplifiers. The product’s genius is not just that it’s wireless; it’s in the way that it accomplishes its bass-boost mission. Other bass-boost circuits increase the effective low-pass crossover frequency as bass is boosted, because the slope (roll-off or “Q”) is constant. In the WBC circuit, bass boost is shelved to maintain a linear boost to all frequencies below 60Hz, up to +10 decibels of increase. The low-pass crossover frequency is constant because the Q of the filter is adaptive based on boost levels. It’s a critical step of precision to ensure that bass is realistic and blended, not overpowering or misplaced because of varying low-pass crossover points. An onboard 3-volt CR2025 battery provides the unit’s power, but the unit also has an optional, hard-wired plug for connection to your car’s electrical system. This is the way all bass-boost controllers should be: easy to install and precise in adjustment.

The MS-WBC is a radio-frequency (RF) device that communicates wirelessly with one or more compatible JBL amplifiers to control levels of bass boost. It is configured to the amplifier in a pairing process similar to the way in which mobile phones and headsets are paired. Every time the audio system turns on, each amplifier that’s been configured to the MS-WBC recognizes it instantly. Since there are no wires to connect, you can place the control wherever it’s most convenient.
You can easily pair the MS-WBC with a quick 15-second (or less) setup and then synchronize it to multiple amplifiers so that a single MS-WBC adjustment makes all amplifiers provide the same level and speed of bass boost. The MS-WBC is compatible with all JBL MS Series car audio amplifiers.
Where other systems simply boost the entire audio bandwidth covered in that amplifier channel, the MS-WBC recognizes that the low-pass crossover point must remain constant. Subwoofers do not sound great when they’re crossed over at 200Hz, which effectively is what happens in most other bass-boost designs. But this unit shelves the bass boost and provides a linear “lift” to all frequencies below the boost cutoff. The result is better overall balance of sub bass and a better transition between the subwoofer and other speakers.
It’s a snap to install the MS-WBC because it has no wires to connect. Installation hardware and adhesive pad are included with the unit; it even comes with a screwdriver. The unit derives its power from an onboard, wafer-style, 3-volt CR2025 battery. Or, in a maintenance-free installation, you can connect the unit to your car’s electrical system.
Since it is paired to your amplifier(s), the MS-WBC knows when it needs to “wake up.” It responds and uses power only when an audio system is playing. As a result, the unit’s internal battery can last a very long time.
The MS-WBC is active only while an audio system is on. It will not make adjustments inadvertently when the system is off, which ensures that no unauthorized hands can change its bass-boost level. Once the system powers back up, the bass-boost level resumes exactly where it was before the system turned off.
The MS-WBC is battery powered, but we’ve included an optional two-wire plug to allow professional installation at a hard-wired power source. Simply connect the two wires in the plug to chassis ground and to a switched or constant +12-volt DC source.

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