Overview
The ST-EQ3 features a balanced bridging input, which may be connected unbalanced if desired. The output driver is 150 ? balanced, and is intended to drive unbalanced or balanced lines of 150 ? or higher impedance. Equalization is accomplished by three active circuits, each controlling a separate audio band. These bands were carefully selected to yield a module that works effectively in a wide variety of systems. Setup of the ST-EQ3 is assisted by a peak overload LED which indicates excessive pre or post EQ levels.
Features
- 3-Band Audio Equalization
- Custom Tailored Audio Bandwidth
- Adjust To Pass Voice-Band Audio
- Adjust To Produce Smile-Curve for Music
- Low Noise and Low Distortion Equalization
Specifications
| Input | 100 k? balanced or unbalanced bridging; line-level |
| Gain | OFF to unity (adjustable, ± EQ adjustment) |
| Audio Output | +4 dBu nominal, 150 ? balanced |
| THD+N | < 0.030%; 0.010% typical (1 kHz flat response) |
| CMRR | > 60 dB (50 to 120 Hz) |
| Frequency Response | 20 Hz to 22 kHz (EQ set flat; ± 0.5 dB), into 600 ?; 10 Hz to 22 kHz (EQ set flat; ± 0.5 dB), into bridging load |
| Noise | < -80 dB (below +4 dBu) |
| Center Frequencies | LOW Band: 80 Hz MID Band: 1 kHz HIGH Band: 30 kHz |
| Bandwidth at 3dB EQ | LOW Band: 20 Hz to 300 Hz MID Band: 200 Hz to 7 kHz HIGH Band: 3 kHz to 30 kHz |
| Ambient Operating Environment | 0° C to 55° C |
| Power Requirement | GROUND-REFERENCED, 24 Vdc @ 25 mA |
| Dimensions | Height: 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm) |
| Package Type | Cardboard Box |
| Package Dimensions | 2 x 2 x 4 in. |
| Shipping Weight | 0.17 lbs. |
| WEEE weight | 0.12 lbs. |
| Tariff code | 8518.40.2000 |