SPECIFICATIONS & DOWNLOADS



XLR LINE INPUT TO XLR LINE OUTPUT
Compressor Bypassed.
zSource = 40 Ohm Balanced

INPUT IMPEDANCE
10K Ohm

OUTPUT IMPEDANCE
40 Ohm

MAXIMUM INPUT LEVEL
+4 dBu Selected: +26.7 dBu typical

MAXIMUM OUTPUT LEVEL
+26.7 dBu typical

NOISE
10 Hz - 120 kHz: -104 dBu typical

FREQUENCY REPONSE
10 Hz to 120 kHz: +/- 0.25 dB typical

THD+N
From 22 Hz - 22kHz BW.
@ 1 kHz @ Maximum Level: 0.0008% typical

 

COMPRESSOR NOISE
From 22 Hz - 22kHz BW.
zSource = 40 Ohms Balanced

NOISE
@ 0 dB Make-up gain: -84.5 dBu typical
@ +20 dB Make-up gain: -64.5 dBu typical

 

COMPRESSOR TIMING
TIMING measurements represent the full range achievable between 1.5:1 and 8:1 ratio and FAST mode.

FAST 
Attack 250μS - 2mS // Release 100mS - 200mS typical 

MF (MEDIUM FAST) 
Attack 1mS - 5mS // Release 100mS - 200mS typical 

MED (MEDIUM) 
Attack 3mS - 18mS // Release 350mS - 700mS typical 

MS (MEDIUM SLOW) 
Attack 5mS - 40mS // Release 600mS - 1S typical 

SLOW 
Attack 10mS - 80 mS // Release 800mS - 1.5S typical 

AUTO 
Attack 5mS - 40mS // Release T1 400-900mS, T2 1-2S typical

 

PRODUCT DIMENSIONS
19” (48.3 cm) x 9” (22.9 cm) x 1.65” (4.2 cm)

SHIPPING WEIGHT
24” (61 cm) x 13” (33 cm) x 4” (10.2 cm)

SHIPPING WEIGHT
10 lbs. (4.5 kg)


FREQUENTLY ASKED QUESTIONS

What’s the difference between the 5254 and the Master Buss Processor?

The 5254 is a diode bridge compressor, whereas the Master Buss Processor is a VCA compressor. VCA designs are generally used for precise, clean level control, and don’t necessarily impart “a sound” of their own. A diode bridge design is more colorful, with lots of vibe and personality – great for adding thickness, weight, and warmth to tracks or mixes.

Can the 5254 be used on stereo mixes or mastering?

Absolutely. While the 5254 may not be quite as “precise” as the Master Buss Processor, it can provide a very special “glue” to stereo mixes or masters. If the color is too much for the source, you can always dial down the Blend control; lower ratios and slower time constant choices will also impart less color.

How is the 5254 different from the compressor in the Shelford Channel, or the 535 Diode Bridge compressor? Aren't they all the same?

The 5254 and the Shelford Channel compressors and line circuitry are basically identical, aside from the obvious additional features in the Shelford Channel. The 535 shares the same basic diode bridge design, but the lower voltage (inherent in the 500 Series format) and different line driving circuitry do have slightly different performance.