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When the term "graphic equalizer" was first coined, the intent was to provide a device that allowed the user to "draw" the desired frequency response using slider controls on the unit's front panel. Thus, the Holy Grail of graphic equalizers is a device with a response that truly matches the slider settings. For years, this seemingly unobtainable goal resulted in products based on the fine art of compromise - until now - until the DEQ 60.
It's not Constant - not Proportional
- It's Perfect! Digital Signal Processing (DSP) allows filter
technology not possible with analog designs. Rane coined the term
Perfect-QTM to describe the results (U.S. &
international patents filed). The DEQ 60 is the world's first true
graphic equalizer (i.e., one providing real mechanical front panel
slide controls) whose output response precisely matches its front panel
settings. Perfect-Q features virtually no band interaction and
extremely low ripple between adjacent bands. Just to keep things
interesting and flexible, fear not proportional-Q lovers, for each
channel of the DEQ 60 is selectable between Perfect-Q or proportional-Q
response.
| Classic Proportional-Q Response (front panel switchable) Difference |
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| Popular Constant-Q Response Difference Found in Analog Rane Equalizers |
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| Perfect-Q Response (front panel switchable), No Difference! |
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| Typical
PA adjustment showing the difference between Perfect-Q and
Proportional-Q. Which curve more precisely matches the slider positions? |
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For all the details, read the RaneNote "Perfect-Q, the Next Step in Graphic EQ Design".
The
DEQ 60L Graphic Equalizer provides the most complete set of pure EQ
functions ever offered in an analog controlled equalizer.
- Perfect-QTM : What You See Is What You Get
- No EQ filter interaction
- Proportional-Q: Classic smooth response
- Independent Accelerated-SlopeTM 3-band full-cut tone controls
- Low-cut and High-cut filters
- Switchable Boost/Cut or Cut-Only Modes
- Input and Output Level controls
- Eight segment metering for each Input and Output
- Two Boost / Cut ranges: ±6 dB or ±12 dB
- Each channel may use A or B channel controls
- Stereo Linking
- Two "analog memories"
- A-curve / B-curve comparison
- Analog controlled DSP
- XLR, 1/4" TRS and Euroblock connectors
- Bypass switch (DSP), Bypass relay (power failure)
- Exceptional RF and magnetic immunity
- Universal internal switching power supply
Data Sheet (200k)
| Manual (200k)
| Schematic (300k)
| Live Sound Tool Kit ad (900k)
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