140A - Uncategorized DBX - Free user manual and instructions
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| Product Type | Professional Audio Compressor/Limiter |
| Model | 140A |
| Brand | DBX |
| Channels | 2 |
| Frequency Response | 20 Hz – 20 kHz |
| Dynamic Range | > 115 dB |
| Threshold Range | -40 dB to +20 dB |
| Ratio | 1:1 to ∞:1 |
| Attack Time | 0.1 ms to 200 ms |
| Release Time | 50 ms to 2 s |
| Input Impedance | 50 kΩ (balanced) |
| Output Impedance | 60 Ω (balanced) |
| Maximum Input Level | +22 dBu |
| Maximum Output Level | +22 dBu |
| Power Supply | 120 V AC, 60 Hz, 20 W |
| Dimensions | 19" x 1.75" x 6.5" (rack mount, 1U) |
| Weight | 2.5 kg (5.5 lbs) |
| Mounting | 19-inch rack mountable |
| Cooling | Passive ventilation |
| Maintenance | Clean with dry cloth; avoid liquids |
| Safety | Follow user manual; use grounded outlet |
| Spare Parts | Contact DBX support for replacement |
| Repairability | Service by qualified technician only |
| General Information | Professional stereo compressor/limiter for studio and live sound |
Frequently Asked Questions - 140A DBX
How do I connect the DBX 140A to my mixer?
Use balanced XLR or 1/4" TRS cables from your mixer's insert jacks or line outputs to the 140A's inputs. Connect the 140A's outputs to your mixer's returns or next device.
What does the 'Threshold' control do?
The Threshold sets the level above which compression starts. Lower thresholds compress more of the signal.
How do I set the ratio for vocals?
For vocals, start with a ratio of 3:1 to 4:1. Adjust for desired dynamic control without making the sound unnatural.
Why is the unit not powering on?
Check the power cable and ensure the outlet is live. Verify the unit's fuse (if accessible) and that the power switch is on. If still off, contact DBX support.
Can I use the 140A on a stereo mix?
Yes, the DBX 140A is a stereo unit with two independent channels. For stereo linking, engage the Stereo Link switch to couple the channels.
What is the 'Hard Knee' vs 'Soft Knee' switch?
Hard Knee applies compression abruptly at the threshold. Soft Knee gradually increases compression, resulting in a smoother effect.
How do I clean the DBX 140A?
Disconnect power. Use a soft, dry cloth to wipe the front panel and chassis. Do not use any liquids or abrasive cleaners.
What is the purpose of the 'Gain Reduction' meter?
The Gain Reduction meter shows how much compression is being applied in dB. It helps you monitor the effect of your settings.
Can I mount the 140A in a rack?
Yes, the 140A is designed for standard 19-inch rack mounting. Use four screws to secure the front panel to the rack rails.
Where can I find the user manual?
The manual is available for free download on the Notice Facile website. You can also request a translated version by email.
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USER MANUAL 140A DBX
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Product information
Brand : DBX
Model : 140A
Category : Uncategorized