500 Series

• With analogue power supply +/- 16 Volt / +48 Volt
• 500 mA per slot
• Reduced cabling effort, as the audio routing can be switched from card to card on the rear panel
• Compressor link and ground lift switch
• Intelligent voltage distribution
• Energy efficient
• Design: 19" / 3U

• Access to the basic reverb parameters of each programme (pre-delay, decay time and decay filter)
• Input, output, and mix (wet/dry) levels can be set globally
• 18 Different reverb programmes
• 100 user presets
• 2.4" OLED display
• Design: API Series 500 format (3 slots)

• For system 500 modules
• Per input channel input (XLR and jack), output (XLR and jack), omniport, feed and link switch
• Switchable 48 V phantom power
• External power supply
• Metal grip

• Discrete design based on Lindell Hybrid amplifiers
• Coupled transformers with balanced inputs and outputs
• Up to 65 dB gain
• Passive "Pultec-style" EQ
• Coil + hybrid gain make up amplifier
• 3-Step switchable EQ Low Freq Boost: 30 Hz, 60 Hz, 100 Hz (+/-10%)
• 3-Step switchable EQ High Freq Boost: 6 kHz, 10 kHz, 16 kHz (+/-10%)
• Selectable high boost bandwidth
• Phase changeover switch
• 48 V Phantom Power
• 5 LED VU Meters
• Design: API Series 500 Format

• Mono EQ in the 500 series API format
• Gain indicator with signal LED
• Bypass switch
• Electronically balanced inputs / outputs
• Audio processing Insert Design: in connection with the 1073 LB Preamp, allows the use in the insertion path of the signal chain
• Fully shielded housing for max. Shielding against electromagnetic influences

• 500 series
• Compressor Limiter
• SSL 4000 Series circuit
• Class A VCA Replication
• Expander / Gate
• Is based on the classic 611E Console Channel Strip
• Construction: API Series 500 format
• Requires a 500 slot

• Microphone preamp for recording guitar
• Up to 60 dB gain at the input section
• -27 dB to +12 dB Output Trim
• Post effect grinding path
• Selectable high-pass filter: 80 Hz / 200 Hz
• Selectable high-shelf filter: 7000 Hz / 4000 Hz
• Frequency response: 20 to 2000 Hz flat (all filters deactivated)
• 100% Analog signal path
• Controller for gain and output
• -20 dB Pad toggle switch for high-level input signals
• Phase toggle switch to reverse the signal phase
• +48 V toggle switch to enable phantom power
• High-shelf toggle switch to select the high-shelf filter frequency
• High-pass toggle switch to select the high-pass filter frequency
• Status LED for +48 V phantom power
• Metal housing
• 2 Front-side 6.3 mm mono-pin (send / return) connections
• Return socket can be used as DI input (post filters, pad and phase reversal)
• For mounting in racks of the 500 series
• Made in USANote: Register your product at www.w-distribution.com/Warranty and extend the warranty to 4 years.

API Audio Select SV14 4-Band EQ; 4-band equalizer in 500 rack format; based on the classic APSI 562 EQ; stepless control of frequency and gain; 12 dB boost/cut per band; bands are parametrically configured with peak/dipping; balanced output with special transformer; high headroom +24 dB clip level; fits API's 500 VPR Rack or Lunchbox

API Audio Select SV12 Compressor; Compressor in 500er rack fromat; Original analog compressor circuitry for the ATI Paragon console; Variable threshold, ratio and make-up gain controls; LED display; Switchable hard or soft knee compression; Hardware bypass; Linkable for stereo operation with true RMS power summation

• Range: Selects the frequency range to be processed
• Stage: Selected frequency range can be moved backwards or forwards on the stereo stage
• Bigness: Adjusts the intensity of the stereo image
• Bypass switch
• Signal LED
• Construction: API Series 500 format, requires two 500 slots

• Carnhill transformer input and output
• Adjustable attack and release
• Controls for input/output and ratio
• VU meter
• Construction: 500 module

• Discrete Class-A tube circuit
• Selected 12AX7 double triode
• "Negative Feedback Design" with buffered RC elements
• Three equalizer bands and low and high cut filters
• Transmission range: 1 Hz - 100 kHz
• Noise: -84 dBu, 20 Hz - 20 kHz
• Maximum input level: +24 dBu
• Maximum output level: +25 dBu
• Input Impedance: 32 kOhm
• Output Impedance: 160 Ohm
• Output transformer: Lundahl LL1585 (Mu metal shielded)
• Grayhill rotary switch
• Bourns Potentiometer
• Power consumption: 120 mA
• Automatically back-up fuse
• Construction: API Series 500 format

• VU Meter
• Limiter/compressor mode
• Gain-output level
• Peak reduction
• In/Bypass
• +4 DB Operating level
• Original Teletronix '68 audio path
• Input: JJ 12AX7 tubes
• Output: JJ 12AU7 tubes
• Max. out: +21 dBU
• Format: Module 500

• Module for the API-500 system
• Dynamic multifunctional filter - mainly for use as a de-esser
• Frequency range: 3 Hz - 120 kHz (-3dB points)
• Dynamic range - 115 dB from max. output (.5%THD soft clipping) to minimum output
• Input impedance: 20 Ohms
• Output impedance less than 51 ohms
• Power consumption: 4 W - max. 800 W

• Linear, transparent microphone preamplifier
• 2 Discrete analogue saturation circuits for sound colouring
• THD+N: 0.0002 %.
• Frequency and phase linearity: Frequency response ±0.7 dB from 5 Hz to 200 kHz at max. gain and
• Front-End topology with 68.5 dB gain across all 12 gain steps
• 3-Way input selector switch (Mic, line and instrument)
• Line recordings with +26.5 dBu input headroom
• DI input in BJT design and 1.5 MOhm input impedance
• Needs a 500 slot
• Form factor: 500 Series module

Tegeler Audio Manufaktur VL 500 Vocal Leveler; 500 module; opto-compressor from the Vari Tube Recording Channel; frequency response: 20 Hz - 20 kHz; max. input level: +20 dBu; max. output level: +21 dBu. Output level: +21 dBu; dynamic range: = 100 dB; max. power consumption: 80 mA; VU meter; rotary controls for gain reduction and output volume; toggle switch for In, Bypass and Stereo-link as well as Attack + Release time fast, auto, slow; design: 500 modules; weight: 540g

• Discrete Class-A topology: Expensive boutique sound made affordable.
• THD Boost: Harmonics for a grittier flavor.
• Auto Fast: Perfect attack in any situation
• Anti Log: Pumping & breathing with the push of a button
• Negative ratios: Unique compression effects
• Gain Reduction Limiter: Ultimate control over compression
• Stepped Controllers: Quick and easy recall
• Frequency range:
• Noise: 20 Hz - 20 kHz (A-weighted) -79 dBu
• Dynamic absorption: 20 Hz - 22 kHz 99 dB
• Maximum level input: +21 dBu
• Maximum level output: +22 dBu
• Input impedance: 10 kOhm
• Output impedance: 68 ohms
• Construction: API Series 500 format, 1 slot
• Scope of delivery: Compressor 500 module without frame

• On Slot technology (power control for each individual slot)
• Link function (each channel can be linked to the next channel)
• Power supply with 400 mA per module
• Phantom power (140 mA max. total requirement)
• External power supply
• XLR connectors
• Sheet steel housing with aluminium front panel
• Construction: 500 module series, 19" / 3U
• Dimensions (H x W x D): 13.4 x 24.5 (28.4 cm with handle) x 18.5 cm
• Weight: 2.368 kg

• Internal power supply +/- 16 V/ +48 V
• Reduced cabling, so that the audio routing may be switched from card to card on the rear panel
• Intelligent power distribution
• Energy efficient
• Low-noise integrated power supply
• Matching 19" rack kit available under Article Nr 341739 (not included)