The Realios A9052 EQ is an equalizer using the classic Dick Swettenham Olympic Studios Design. Designed for the 500 series racks. Extremely musical frequency points.
Originally designed for the Olympic studios' console by Dick Swettenham with guidance from engineer Keith Grant, this equalizer is a very useful toolbox. It is the sound of records made at Olympic studios in the 60s and 70s and is now available in a 500 series format package.
The A9052 provides extremely musical high and low shelving bands, two mid / low frequency bands of equalization as well as a two position high-pass filter. The equalization points chosen provide instant control over musical timbre.
An addition to the original three transistor makeup gain stage is a class-A transistor output stage which will drive the most demanding of loads. Also included is a step-down input transformer and step-up output transformer which provides 6 dB greater headroom than the 500 series voltage rails would normally allow (see the output level spec below).
Peak / trough midrange band
Peak low frequency band
Separate variable high and low shelves
Phase reverse switch
Dual frequency high-pass filter
All discrete transistor design
Input and output transformers
Wide dnamic range
Extremely musical frequency points
Single-space 500 series rack format
Input Impedance: 20K, balanced
Output Impedance: less than 50
Max. Output Level: +32dBu, transformer balanced
Gains: Peak 15 dB, Trough -15 dB
Frequency Response: +/- 1 dB from 0.15Hz to 25kHz
Noise Level: better than 74dB below +4dBu, 0-30kHz