500 SERIES


The API Model 500VPR is powered externally by a tri-polar power supply and is designed to accept API standard format 5.25" X 1.5" modules. The 500VPR is internally wired for PIN 2 hot, and comes with the API L200PS. The input/output jacks are both XLRs. The 500VPR can hold up to ten API modules. API makes several modules to fit this rack, including the 550A, 550B, 560, 525, and 512C. Like all API products, the 500VPR rack enjoys API's standard 5 year warranty.

Note that older API 560A series equalizers used pin 15 for a "direct output" and must be disabled on the 560A circuit board edge connector by cutting a trace. This will eliminate 48 volts from damaging the 560A series equalizers.

The API Model 500-6B Lunchbox is a six position rack designed to accept all API standard 5.25" X 1.5" modules. This allows an engineer the flexibility to bring along specialized EQ effects to any situation: 550A, 550B or 560. The Lunchbox is self-powered, with a rear panel selected AC voltage switch, and a removable power cord. The input/output jacks are XLR.

The Lunchbox comes standard with a +48 volt internal phantom power supply, bussed to pin 15 for interface with the API 512C.

500 SERIES MODULES
550A DISCRETE 3 BAND EQ

-3 bands of classic API equalization
-Each band offers 5 API selected frequency centers
-Reciprocal and repeatable filtering
-maximum 12 dB of boost/cut per band
-EQ Band 1 and 3 offer shelf/peak switching
-"Proportional Q" narrows filter Q at extremes
-Traditional API fully discrete circuit design
-High headroom +30 dB clip level

512C DISCRETE MIC/LINE PRE

-Mic Preamp with 65 dB of gain
-Front and Back Panel Mic Input Access
-Line/Instrument Preamp with 50 dB of gain
-Front and Back Panel Line/Instrument Input
-LED VU meter for monitoring output level
-20 dB pad switch, applies to mic/line/instrument
-48v Phantom switchable power
-Traditional API fully discrete circuit design
-Uses the famous API 2520 Op-Amp

525 DISCRETE COMPRESSOR/RE-ISSUE

-Reissue of API's original 525 from the early 70's
-Peak detecting "feedback" -compressor/limiter
-Variable Threshold and Output levels
-Unique "Ceiling" control combines key functions
-VU meter for monitoring gain reduction
-4 Switchable release modes
-De-Ess function
-Traditional API fully discrete circuit design
-Hardwire bypass
550B DISCRETE 4 BAND EQ

-4 bands of our famous sounding equalization
-Each band offers 7 API selected frequency centers
-Reciprocal and repeatable filtering
-12 dB of boost/cut per band
-EQ Band 1 and 4 offer shelf/peak switching
-"Proportional Q" narrows filter Q at extremes
-Traditional API fully discrete circuit design
-High headroom +30 dB clip level
-Re-issue of 1967 API 550 EQ with an extra band
560 DISCRETE 10 BAND GRAPHIC EQ

-10 bands of API proprietary equalization
-Familiar graphics operation on one octave centers
-12 dB of boost/cut per band
-"Proportional Q" narrows filter Q at extremes
-Additional resolution within the ±4 region
-Center detent for reliable reset
-Traditional API fully discrete circuit design
-Silent bypass button
-Re-issue of the 1969 API 560 EQ

5B1 500 SERIES, 1 SLOT BLANK PANEL
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(PLEASE SPECIFY WHICH MODULES)
RACKMOUNTS
A2D DUAL 312 MIC PREAMPS W/ DIGITAL OUTPUT
A pair of signature 312 mic preamps, API 2520 op amps, 20 Segment LED metering on both Analog and Digital sections, Mic and Line inputs,
Polarity, Phantom power, Input pad, 2:1, and Mic/Line switches, 6 sample rate choices, External Super Clock Input,
Multiple A2D units can be slaved together, Insert point provided between Analog and Digital sections
2500 STEREO COMPRESSOR
API 2520 op-amp, Variable threshold between -20 and +10, Selectable Ratio, Attack and Release times,
Patented "Thrust" high-pass filter before RMS detector, Variable link between left and right channels, Old "feed back" or new "feed forward" compression, Soft, Medium or Hard Knee for easy to sharp compression, Auto or manual gain make up,
1/4" balanced side chain inputs, Output clips at +30 dBm


3124+ DISCRETE 4 CHANNEL MIC/LINE PRE, PLUS DI
Uses API 2520 Op-Amp, Classic Console Circuit, Four XLR Mic Inputs, Four 1/4" Un-Balanced Inputs, Front Panel Polarity Switch, Front Panel 20 dB PadSwitch, Front Panel Mic/Line Switch, Front Panel 48V Power Switch, Output Clips at +30 dBm

5500 DUAL 550 EQ'S WITH RANGE SWITCH
lassic 550B Equalizer Design, 2 Range Switches Individually Alter Gain Steps, Useable as a 550B, 550D or 550M, Peak/Shelf Switch on HI & Lo bands, True Hardwire Bypass, Balanced IN and OUT on XLR, Unbalanced Input on 1/4", EQ In/Out Switch

CLICK HERE FOR INFO & PRICING ON RACKMOUNTS
(PLEASE SPECIFY WHICH RACKMOUNTS)