Artistic Compressor Plus - Audio Compressor Fredenstein - Free user manual and instructions
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| Type of product | Audio Compressor (Analog) |
| Brand | Fredenstein |
| Model | Artistic Compressor Plus |
| Form Factor | 19-inch rack mountable, 1U height |
| Channels | Stereo (2-channel) with dual mono operation |
| Frequency Response | 20 Hz - 20 kHz (±0.5 dB) |
| Threshold Range | -40 dB to +20 dB |
| Ratio | 1:1 to 20:1 |
| Attack Time | 0.1 ms to 50 ms |
| Release Time | 50 ms to 2 s |
| Makeup Gain | 0 to +20 dB |
| Input Impedance | 10 kΩ balanced |
| Output Impedance | 100 Ω balanced |
| Maximum Input Level | +22 dBu |
| Dimensions | 483 mm × 44 mm × 200 mm (19" × 1.7" × 7.9") |
| Weight | 2.5 kg (5.5 lbs) |
| Power Supply | 100-240 V AC, 50/60 Hz |
| Controls | Threshold, Ratio, Attack, Release, Makeup Gain, Bypass |
| Indicators | LED VU meter, Bypass LED |
| Connectivity | XLR and 1/4" TRS balanced inputs/outputs |
| Security | Robust metal chassis, grounded power supply |
| Maintenance | Clean with a dry cloth; avoid solvents |
| Spare parts and reparability | Replaceable knobs, internal fuses, serviceable |
Frequently Asked Questions - Artistic Compressor Plus Fredenstein
How do I set up the Artistic Compressor Plus for stereo use?
For stereo operation, connect both left and right inputs and outputs. Ensure both channels are linked or use identical settings on each side. The unit is designed to maintain stereo imaging, and the bypass switch helps A/B test the effect.
What is the best way to avoid distortion?
Set the threshold so that gain reduction is gradual, and adjust the ratio modestly (e.g., 2:1 to 4:1). Use the makeup gain to compensate for level loss, but avoid driving the output into clipping. Start with lower input levels and increase slowly.
Can I use this compressor on a mixing console insert?
Yes, the Artistic Compressor Plus works well on console inserts. Use balanced TRS or XLR connections and set the unit to the correct operating level. The balanced inputs and outputs ensure signal integrity over long cable runs.
How do I calibrate the input gain?
Set the ratio to 1:1 and threshold to maximum, then play a signal at the desired level. Adjust the input trim (if available) so that the VU meter reads approximately 0 dB. This ensures optimal headroom and consistent compression behavior.
What maintenance does the compressor require?
Regularly clean the front panel and connectors with a soft, dry cloth. Check cables for wear and ensure the unit is powered off before cleaning. Inside, only a qualified technician should replace the fuse or adjust components.
Is the compressor suitable for mastering?
It can be used for mastering with careful settings. The wide frequency response and low noise floor make it transparent. Use low ratios (1.5:1 to 2:1), fast attack, and moderate release to glue the mix without obvious pumping.
How do I achieve a 'pumping' effect?
Set a high ratio (e.g., 10:1), a slow attack (around 50 ms), and a fast release (0.1-0.3 s). Lower the threshold to get gain reduction of 10 dB or more. This creates the classic pumping and breathing effect often used in electronic music.
What is the bypass switch used for?
The bypass switch bypasses the compression circuitry entirely, allowing you to compare the processed and unprocessed signals instantly. This is useful for making critical A/B judgments and for troubleshooting.
Can I power it with batteries?
No, the unit requires AC power from 100-240 V and is not designed for battery operation. It consumes low power, so it can be safely powered in most studio environments.
How do I reduce noise when idle?
Ensure all audio cables are properly shielded and not running near power cables. Check that the input is not overloaded, and set the makeup gain to a normal level. The unit itself has a low noise floor, so hum usually originates from external sources; try a balanced connection and a ground lift if available.
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USER MANUAL Artistic Compressor Plus Fredenstein
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Product information
Brand : Fredenstein
Model : Artistic Compressor Plus
Category : Audio Compressor