Joplin MkII

Joplin MkII ADC

The perfect analog port for a digital audio system

The Joplin MkII is exactally what you need to connect your turntable to your computer or to your all-digital hi-fi system.

The versatile analog front-end, with settable gain up to 65dB and variable input impedance allow user to connect every phono cartridge without the need for a phono preamplifier. In case a phono preamplifier is to be used, the analog input may be set to 0dB gain and 47 kOhms impedance, to behave as the line input of every preamplifier or integrated amplifier

The internal processing block allows user to enable phono equalization in digital domain, choosing one out of several phono curves available.

Digitized data are sent to a wealth of digital outputs, as well as to the USB port for recording into a file on a computer. An auxiliary SPDIF digital input enables a digital communication channel to the computer, actually providing it with a digital input.

The extremely high signal-to-noise ratio, the vanishingly low distortion and the precision of the equalization curves make for a virtually transparent link between your turntable cartridge and your digital preamplifier and your computer.


Joplin MkII works great together with…

Van Der Graaf Low Noise Power Supply

…to add resolution and weight to the sound.

Young MkIII DAC

…to provide the Joplin MkII with a high quality analog output.


Specifications

Inputs:
analog single-ended (RCA)
SPDIF (RCA)
Outputs:
SPDIF (RCA)
AESEBU (XLR)
optical (Toslink)
USB 2.0 high speed
Sample frequencies:
PCM 44.1kHz to 384kHz
PCM resolution:
16 bits to 32 bits
Signal-to-Noise Ratio:
122dBA (gain: 0dB)
THD+N:
0.0003% (gain: 0dB)
Input sensitivity:
2.5Vrms (gain: 0dB)
1.4mVrms (gain: 65dB)
Analog gain:
0dB; 10dB to 65dB
Digital gain:
average 6-8dB with each phono curve
(easily interfaces with MC cartridges with output voltage down to 4-500uV with minimum loss of resolution and signal-to-noise ratio)
Analog input impedance:
47 kOhms || 100pF
47 kOhms || 200pF
47 kOhms || 320pF
15 kOhms
1 kOhms
500 Ohms
200 Ohms
50 Ohms
20 Ohms
Low-pass filter:
5kHz
10kHz
disabled
High-pass filter:
50Hz
16Hz
disabled
MPX filter:
-60dB @ 19kHz
Supply voltage:
15VDC
Power Consumption:
4W (operational)
1W (standby)
Size:
200x200x50mm (wxdxh)
Weight:
net 2kg (including ancillaries)
gross 2.5kg

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