120X - Uncategorized DBX - Free user manual and instructions
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| Product Type | Subharmonic Synthesizer |
| Brand | DBX |
| Model | 120X |
| Rack Size | 1U |
| Frequency Response | 20 Hz - 20 kHz |
| Inputs | 2 x XLR/TRS balanced/unbalanced |
| Outputs | 2 x XLR/TRS balanced/unbalanced |
| Crossover Frequency | Adjustable, 40 - 130 Hz |
| Sub Bass Level | Adjustable, +15 dB maximum |
| Controls | Crossover frequency, sub level, bypass |
| Indicators | Signal and overload LEDs |
| Power Supply | AC 100-240V, 50/60 Hz |
| Dimensions (W x H x D) | 19 x 1.75 x 6.5 inches |
| Weight | 2.3 kg |
| Construction | Steel chassis |
| Repairability | Modular internal design with accessible components |
| Maintenance | Clean exterior with a soft dry cloth |
| General Information | Designed to add low-frequency enhancement to audio systems |
Frequently Asked Questions - 120X DBX
What is the main function of the DBX 120X?
The DBX 120X is a subharmonic synthesizer that generates low-frequency content one and two octaves below the original bass signal, adding depth and impact to music.
How do I connect the DBX 120X to my system?
Use balanced XLR or TRS cables from your source (e.g., mixer or DAW output) to the inputs, then connect the outputs to your amplifier or crossover. The unit can be inserted in a mixer insert or between console and power amp.
What is the recommended crossover frequency setting?
Set the crossover frequency to match your main speakers' low-frequency limit, typically between 50 Hz and 100 Hz. Adjust while listening to ensure smooth blending with the sub bass.
Can the DBX 120X be used on vocals?
It is primarily designed for program material like music, not individual vocals. Using it on vocals could create unnatural low-frequency artifacts.
Does the DBX 120X work with stereo signals?
Yes, the 120X is a stereo unit with two independent channels, allowing you to process left and right signals separately or in linked mode.
What does the bypass switch do?
The bypass switch routes the input signal directly to the output, bypassing the subharmonic processing. This is useful for A/B comparisons.
Is the DBX 120X compatible with 230V power?
Yes, the 120X has a universal power supply that accepts 100-240V AC, making it suitable for use worldwide.
How can I reduce distortion when the sub bass is too strong?
Lower the sub level control and adjust the crossover frequency. Also ensure the input level is not clipping; use the overload LED to monitor the signal.
What causes no output from the DBX 120X?
Check that the bypass switch is not engaged, verify input and output connections, and ensure the power LED is lit. Also check that the crossover frequency is set appropriately for the audio material.
Can the DBX 120X be rack-mounted?
Yes, it is a 1U rack-mount unit designed for standard 19-inch racks. Use supplied rack screws to secure it.
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USER MANUAL 120X DBX
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Product information
Brand : DBX
Model : 120X
Category : Uncategorized