Technology : SPEC CORPORATION

A phono equalizer with extremely simple circuit configuration making full use of the latent ability of latest operational amps close to the ideal amplifier.
Most important portion of the high gain amplifier circuitry like as phono EQ , the initial stage receiving the output from a cartridge incorporates separate operational amps, most suitable for MC and MM cartridges for seeking highest sound quality of each types.
An ultra low-noise, high-gain “bipolar-input operational amp” is used for MC cartridges with low-voltage, low-impedance outputs, while a high input impedance and high-performance audio circuitry “FET-input operational amp” is used for MM cartridges with high-voltage, high impedance outputs.

Thanks to the latest ultra low-noise, high-gain　operational amps, we could adopt “CR equalizer”,
it has basically a minimum number of exclusively passive devices and excellent phase characteristics.
Because of its simple circuit configuration, the sound
character of each passive devices used in the CR equalizer determines the final sound quality of the phono equalizer.
REQ-S1EX employs two types of highest quality
“oil filled capacitor” custom-made by Arizona Capacitors, Inc. featuring different tonal character and “mica capacitors” with ultimate sound quality.
They contribute to the straight, highly transparent, information-rich sound quality of the “Real-Sound phono equalizer”.

TECHNOLOGY