API 550A 500 Series 3-Band Equalizer Module 2007 - Present - Black
API 550A 500 Series 3-Band Equalizer Module 2007 - Present - Black
API 550A 500 Series 3-Band Equalizer Module 2007 - Present - Black — sourced facts: Specifications Input Impedance: 66 kΩ high level 17 kΩ low level; Output Impedance: Less than 85Ω (transformer isolated); Nominal Operating Level: –15 dBm to +12 dBm; Insertion Loss: None (bridging).
Specifications
| Specifications Input Impedance | 66 kΩ high level 17 kΩ low level |
|---|---|
| Output Impedance | Less than 85Ω (transformer isolated) |
| Nominal Operating Level | –15 dBm to +12 dBm |
| Insertion Loss | None (bridging) |
| Frequency Response, Unequalized | ±0.5 dB 30 Hz to 20 kHz |
| Noise | Unequalized, output noise of –90 dBm, high level strapping and –98 dBm, low level strapping, 20 Hz to 20 kHz unweighted |
| Distortion | .05% THD max, 30 Hz to 20 kHz @ +4 dBm .07% THD max, 30 Hz to 20 kHz @ +18 dBm |
| Clipping Level (3% THD) | +30 dBm |
| Toggle Switch | 50 Hz to 15 kHz band-pass filter In or out Push Button: LF range Peak or Shelf Push Button: HF range Peak or Shelf Push Button: Equalization In or Out Tally light when In |
| Connector | 30 pin PC connector supplied |
| 550A Discrete 3 Band EQ - API | Automated Processes, Inc. |
| Dual Concentric Rotary | LF select: 30, 40, 50, 100, 200, 300, |
| Size | 1.5″ X 5.25″ X 7.75″ Deep |
|---|---|
| Size (Boxed for Shipping) | 4.5″ X 6.25″ X 10.25″ |
| Actual Weight | 2 lbs. |
| Shipping Weight | 2.53 lbs. |
| Power Requirement | ±15 volts to ±18 volts @ 70 ma |
|---|---|
| Power | 3122V 2-Channel Mic Preamp 3124V M |
| Current draw | 70 ma Controls: Dual Concentr |
Fit and constraints
Intended use
Constraints
To use it
Comparison
Questions
Can you confirm exactly what is included in the sale and show it in current photos?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Are there any functional issues, repairs, or missing parts not shown in the listing?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Can you provide close-up photos of wear points, serial numbers, and any modifications?
Ask before you buy via contact. Confirm power, condition grade, and included items against the listing photos.
Description
The API 550A is a 3-band equalizer module in 500 Series format, manufactured from 2007 to present. This unit shows light wear on the left side and is otherwise in very good condition.
Seller notes: Showing a little bit of wear on the left side but not much, overall great condition!
