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Korora
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Korora MM/MC Phono Stage Amplifier, with passive RIAA Filter
Standalone solid-state battery powered phono stage preamplifier, equipped with a built in recharge circuit and high performance Ni-MH batteries. It can be used on battery power alone (recommended), or while charging. The Korora has an extreme high S/N (close to -100db) performance when powered with the battery.
Firestone Audio Engineering centre has made big efforts to get he Korora at the stage where it is now. At lonely hight, and can be compared to units that are much higer in price !
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Take a closer look ! (click to view)
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Features
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The Korora can be used with either moving magnet or low-output moving coil cartridges. It utilizes a whole new creative and innovative passive RIAA filter. Switches allow selection of capacitive load, gain (51, 54, 58, and 69db), and resistive load (10 ohm, 43 ohm, 100ohm, 47Kohm and one free spot).
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Specifications
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Amplifier Structure : MM / MC RIAA amplifier
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Power Structure : Built in Battery and Virtual-Ground power supply
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Gain Control :51dB / 54dB / 58dB / 69dB selectable
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Input Impedence : 220pF / 10ohm / 43ohm / 100ohm / 47Kohm / Opiton
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Circuit Protect : Output short / over current protect
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Circuit Protect : Over current protect
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Main OPAmp : TI = OP27G, TI - OPA277
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Connectivity
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Line Input : 1 of RCA jack
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Line Output : 1 of RCA jack
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System Requirements
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Can be used with any LP with Moving Magnet (MM) or Moving Cartridge (MC)
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Scope of supply
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Korora
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DC24V 0.5A power adapter
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User manual
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Warranty card
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Wrench
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Input resistance & Capacitance matching table:
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1
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2
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3
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220pF
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10 Ohm
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43 Ohms
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4
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5
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6
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100 Ohms
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47 kOhms
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option
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Gain switch table
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1
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2
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Gain
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Off
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Off
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51 dB (default)
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On
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Off
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54dB
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On
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On
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69dB
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