Overview
The RU-EQ3 features a balanced bridging input, which may be connected unbalanced if desired. The output driver is 150 Ω balanced, and is intended to drive unbalanced or balanced lines of 150 Ω or higher impedance. Front-panel knobs provide active equalization, each controlling a separate audio band. These bands were carefully selected to yield a module that works effectively in a wide variety of systems. Each band's center frequency can be either boosted or attenuated by at least 12 dB. The Q of the low and high band equalizers was selected so that those controls can be functionally considered as a total bass band or treble band control. The RU-EQ3 adds a third control. This midrange control is optimized to voice band adjustment, with the overlap tailored to provide smooth operation for wideband music applications. The RU-EQ3's OVERLOAD indicator flashes if either the input or output stage clips.
Features:
- 3-Band Audio Equalizer
- Custom Tailored Audio Bandwidth
- User-Accessible Adjustments
- High-Density Rack-Mount Convenience
- Low-Noise, Low-Distortion Equalizer
Specifications
- Input:100 kΩ balanced or unbalanced bridging; line-level
- THD+N:< 0.030%; 0.010% typ. (1 kHz, +4 dBu reference; flat response)
- CMRR:> 60 dB (100 Hz)
- Frequency Response:20 Hz to 22 kHz (EQ set flat; ± 0.5 dB into 600 Ω)10 Hz to 22 kHz (EQ set flat; ± 0.5 dB into 10 kΩ)
- Noise:< -80 dB (below +4 dBu)
- Center Frequencies:Low Band: 80 Hz
- Mid Band: 1 kHz
- High Band: 30 kHz
- Bandwidth: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
- Package Type:Cardboard Box
- Package Dimensions:4.375 x 7 x 2.25 in.
- Shipping Weight:0.8 lbs.
RDL Three-Year Limited Warranty
Installation of these products by the Purchaser shall constitute Purchaser’s acknowledgement and acceptance of the terms and
conditions for sale and of this warranty, and shall constitute the Purchaser’s determination of the suitability of this product for the
Purchaser’s intended application. Radio Design Labs, Inc., also referred to as RDL®, warrants to the Purchaser that products
manufactured by RDL are free from defects in material and workmanship. This warranty applies to the period of three years from the date
of shipment, except for component parts or products purchased from other sources and supplied by RDL. Such component parts or
products bear only the warranty of the manufacturer thereof in effect at the time of shipment to the Purchaser. RDL will, without charge,
and after written notice has been received and acknowledged by RDL, repair an RDL product if proved to be defective according to the
usage of the trade, when such equipment is received by RDL at the location it designates with shipment costs prepaid by the Purchaser.
RDL shall not be liable for any expense whether for repairs, replacements, material, service, or otherwise, incurred by the Purchaser or
modifications made by the Purchaser to the product. No equipment shall be deemed defective if it shall fail to operate in a normal or
proper manner due to exposure to excessive moisture in the atmosphere, excessive temperature extremes, improper environmental
cleanliness, or any other environment not consistent with the principles of good engineering practice. In no event shall RDL have any
liability for consequential damage or expense directly or indirectly arising from the use of the products, or any inability to use it either
separately or in combination with other equipment or materials, or from any other cause, whether used in accordance with instructions or
not. This warranty is void if equipment is altered in any way by other than RDL. RDL products are NOT intended for use in life support
appliances, devices, or systems. Use of RDL products in such applications is done solely at the liability of the reseller/installer and/or end
user. RDL reserves the right to change design parameters and specifications at any time without notice. The performance measurements
reflect the products at the time of printing. This warranty is in lieu of all others, either expressed or implied. No representative is authorized
to assume for RDL any other liability in connection with RDL products.
