JJ243 vs Willsenton R800i
The R800i's signal-to-noise is 90 dB against the JJ243's 68 dB, its thd 1.000% against 0.100%, and its output impedance 4Ω against 1Ω. Both share input impedance (100000Ω).
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The JJ Electronic JJ-243 is a high-end stereo tube preamplifier designed primarily for use with turntable cartridges, supporting both Moving Magnet (MM) and Moving Coil (MC) types with output voltages from 0.6mV. It features a phono stage with selectable load resistance (10 to 2200 Ohms) for MC inputs and adjustable input capacitance (100 to 570 pF) for MM inputs, controlled via knobs on the back panel. The preamp uses a total of eight tubes: 6 x E88CC and 2 x ECC82, with four E88CC tubes dedicated internally to the phono stage. It offers three line inputs and one phono input, with two regulated and one unregulated outputs. The noise floor is rated at 68 dB down, and the gain is a minimum of 60 dB. The unit measures 13.4 inches wide, 15 inches deep, and 7 inches tall, weighing approximately 10 kg (30 lbs). The chassis is finished with maple wood available in various colors, and optional 24 karat gold plating is offered. The JJ-243 is known for its robust build quality and is designed to complement JJ Electronic's range of tube amplifiers, delivering exceptional sound quality and flexibility for audiophiles.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
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The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The R800i's signal-to-noise is 90 dB against the JJ243's 68 dB, its thd 1.000% against 0.100%, and its output impedance 4Ω against 1Ω. Both share input impedance (100000Ω).
The Phono 1's signal-to-noise is 83 dB against the JJ243's 68 dB, its output voltage 1.2V RMS against 1.0V RMS, its output impedance 175Ω against 1Ω, and its weight 9.74 kg (21 lbs) against 10 kg (22 lbs).
The SH's signal-to-noise is 110 dB against the JJ243's 68 dB, its thd 0.200% against 0.100%, its damping factor 3 against 1, and its output impedance 6.9Ω against 1Ω.
The PV10A's signal-to-noise is 92 dB against the JJ243's 68 dB and its output voltage 20.0V RMS against 1.0V RMS. Both share thd (0.100%) and input sensitivity (1.0V RMS).
Klyne Audio Arts 7PX-3.5.5
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