Sparkler Audio S508 "esprit" MC Phono Preamp

It is probably the world’s first MC phono stage, RIAA equalizing amplifier compatible with current input and current output. It captures minute electric power generated by the MC cartridge as current (= output voltage / internal resistance), amplifies and equalizes it, and sends it to the power amplifier as a current-mode signal. For that reason, S508u presents very fresh, high-quality sound and dynamism. By adopting the principle superior current-mode signaling in music signals chain, S508u is progressing dramatically from the conventional audio systems. By simplifying the conventional voltage-mode complex equipment, the purity of the music signal is dramatically improved. With unified electronics topology, S508u can be connected seamlessly to both the current-mode amplifiers as well as to the conventional voltage-mode amplifiers.

• Input Terminals: Unbalanced RCA pin jack, chassis ground terminal
• Input Impedance: 0Ω - total gain depends on cartridge internal impedance
• Gain: selectable 60dB or 75dB @1kHz) - adjustable by gain switch
• Type: MC cartridge, CR network RIAA equalizing, NF de-emphasis, dual stage current amplifier
• Line Output: Unbalanced RCA
• Operations: Power switch, Gain switch (high/low)
• Size: W260×D160×H46mm
• Weight 1.46 kg (without power cable)
• Materials: Stainless steel, hairline finished. Stainless top panel with clear acrylic