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Radial Engineering Ltd.

PreMax™ Preamp and EQ

True to the Music

®

3

FEATURE SET

1. 

GAIN

: Used to set the gain of the mic 

preamp. Accustate gain control sets the 
input sensitivity and gain at the same 
time to optimize signal to noise at all 
settings. 

2. 

LED METERING

: Signal and peak LED 

meter provide visual feedback of signal 
status and max output level. 

3. 

180° REVERSE

: Inverts the polarity to 

help phase align two microphones when 
recording in stereo. 

4. 

HIGH-PASS FILTER

: Gently rolls-off 

low frequencies below 100Hz to reduce 
rumble which can muddy up a recording.

5. 

3-BAND EQ:

 Low, mid and high 

frequency controls with +/-12dB of boost 
or cut are used for tone shaping.

6. 

EQ IN/OUT:

 Bypass control lets you 

compare the tone of the original signal 
without the EQ and the tone created 
when the EQ is inserted.

7. 

MIC/INST:

 Toggles the input from the 

balanced XLR on the rear of the power 
rack to the Omniport ¼” instrument input 
on your Radial power rack.

8. 

48V PHANTOM:

 Power for condenser 

microphones. Switch is recessed to 
prevent accidental use that could 
damage vintage ribbon microphones 
or cause loud pops. The LED indicator 
illuminates when the phantom power is 
active.

9. 

OMNIPORT:

 Rear mounted ¼” 

connector designated as an instrument 
input to allow guitar and bass to be 
recorded direct. Available when used 
with the Radial Workhorse.

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Summary of Contents for PreMax 500 Series

Page 1: ...ng com True to the Music User Guide www radialeng com Radial Engineering Ltd 1588 Kebet Way Port Coquitlam British Columbia Canada V3C 5M5 tel 604 942 1001 fax 604 942 1010 email info radialeng com Pr...

Page 2: ...r plugging and unplugging them when the Workhorse or other 500 series racks are powered on Hot swapping can cause connection sparks at the card edge connector that could send damaging transients to ot...

Page 3: ...each and every time you put it to work Plug in your favorite microphone set the Accustate gain control for maximum signal to noise and use the powerful three band EQ to shape your sound There are lot...

Page 4: ...nstant at all levels This is particularly important when recording in the digital domain where even the slightest bit of noise can be audible NOISE FLOOR MINIMUM GAIN NARROW SIGNAL TO NOISE RATIO MAXI...

Page 5: ...he EQ frequencies to sound musical and work with today s production styles 20 20k 50 100 200 500 1k 2k 5k 10k 20 15 10 5 0 5 10 15 20 G X 20 20k 50 100 200 500 1k 2k 5k 10k 20 15 10 5 0 5 10 15 20 G X...

Page 6: ...Q Low mid and high frequency controls with 12dB of boost or cut are used for tone shaping 6 EQ IN OUT Bypass control lets you compare the tone of the original signal without the EQ and the tone create...

Page 7: ...ar panel XLR connections to the module s input and output This is augmented with TRS connectors if using the PreMax in a Radial Workhorse 500 series power rack The PreMax follows the AES standard with...

Page 8: ...PreMax preamps at the same time to capture the sound Together the mics can create a timbre that a single mic cannot One may be positioned near the instrument while the second may be set further away t...

Page 9: ...0 5 10 15 20 G X 20 20k 50 100 200 500 1k 2k 5k 10k 20 15 10 5 0 5 10 15 20 G X 20 20k 50 100 200 500 1k 2k 5k 10k 20 15 10 5 0 5 10 15 20 G X The mid range is a constant Q filter that forms a bell s...

Page 10: ...boards Simply connect to the PreMax via the Omniport jack using a standard instrument cable Set the MIC INST switch on the front panel to the inward position to activate the Omniport Adjust the preamp...

Page 11: ...Ohms Equivalent input noise 120dBu Noise floor 85dB 40dB of gain Intermodulation distortion 0 006 LED meter Signal green over load red Omniport function High Z instrument input EQ filter slope 12 db O...

Page 12: ...ompany any request for work to be performed under this limited and transferable warranty This warranty shall not apply if the product has been damaged due to abuse misuse misapplication accident or as...

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