Gyrator-EQ-500 - Equalizer Phoenix Audio - Free user manual and instructions
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| Product Type | 500-series Equalizer Module |
| Model | Gyrator-EQ-500 |
| Brand | Phoenix Audio |
| Format | 500-series (per API standard) |
| EQ Bands | 4-band parametric with gyrator-based topology |
| Frequency Ranges | Low: 20-500 Hz, Low Mid: 200 Hz-2 kHz, High Mid: 800 Hz-8 kHz, High: 3-20 kHz |
| Gain Range | ±15 dB per band |
| High-Pass Filter | Switchable, 12 dB/octave, 50 Hz or 100 Hz |
| Bypass Switch | Hardwire bypass via front panel toggle |
| Input/Output | Balanced, transformer-coupled (Cinemag or equivalent) |
| Power Requirements | ±16V DC via 500-series rack (approx. 130 mA per rail) |
| Dimensions (WxHxD) | 1.5 x 5.25 x 7.0 inches (38 x 133 x 178 mm) |
| Weight | 0.9 lbs (0.41 kg) |
| Chassis Material | Steel with aluminum front panel |
| Front Panel Controls | 4 frequency knobs, 4 gain knobs, Q switches, HPF switch, bypass switch |
| Rear Connector | Edge connector per 500-series standard (D-sub 15-pin) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 70°C (-4°F to 158°F) |
| Compliance | RoHS, CE |
| Maintenance | Clean with soft dry cloth; avoid solvents |
| Safety | Use only with properly powered 500-series rack; ensure adequate ventilation |
| Warranty | 2 years limited (parts and labor) |
Frequently Asked Questions - Gyrator-EQ-500 Phoenix Audio
What is the Gyrator-EQ-500?
The Gyrator-EQ-500 is a 500-series equalizer module from Phoenix Audio, featuring a four-band parametric EQ with gyrator-based filter topology for musical, vintage-style tone shaping.
What power supply does the Gyrator-EQ-500 need?
It requires ±16V DC from a standard 500-series rack power supply. Current draw is approximately 130 mA per rail. Ensure your rack provides sufficient power.
How do I install the Gyrator-EQ-500 in a 500-series rack?
Slide the module into an empty slot, aligning the edge connector with the rack's backplane. Secure the front panel screws. Power down the rack before installation or removal.
What are the EQ band frequencies?
The four bands cover: Low (20-500 Hz), Low Mid (200 Hz-2 kHz), High Mid (800 Hz-8 kHz), and High (3-20 kHz). Each band has a gain range of ±15 dB and selectable Q settings.
Does the Gyrator-EQ-500 have a high-pass filter?
Yes, it has a switchable high-pass filter with 12 dB/octave slope, selectable at 50 Hz or 100 Hz, useful for removing low-end rumble.
Can I bypass the EQ?
Yes, a front-panel hardwire bypass switch lets you bypass the EQ circuitry entirely, ensuring a pure signal path when engaged.
What type of input/output transformers does it use?
The Gyrator-EQ-500 uses Cinemag (or equivalent) transformers on both input and output for balanced audio and classic color.
Is the Gyrator-EQ-500 compatible with all 500-series racks?
It follows the API 500-series standard and is compatible with most racks that provide ±16V DC power and use the D-sub edge connector. Verify your rack's power capacity.
How do I clean and maintain the module?
Use a soft, dry cloth to wipe the front panel. Avoid liquid cleaners or abrasives. Ensure the rack ventilation is unobstructed to prevent overheating.
What is the warranty on the Gyrator-EQ-500?
Phoenix Audio offers a 2-year limited warranty covering defects in materials and workmanship. Retain your receipt for service claims.
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USER MANUAL Gyrator-EQ-500 Phoenix Audio
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Product information
Brand : Phoenix Audio
Model : Gyrator-EQ-500
Category : Equalizer