Remton audio 481 MK2 – a Tube Phonostage Based on NOS Tesla Resistors
05.03.2025 05:33 | ~1 minute read
The Czech audio equipment manufacturer Remton Audio has introduced a tube (4 x JJ ECC81) phono preamplifier with Remton audio 481 MK2 Limited edition – this approach is explained by the use of NOS Tesla resistors with a deviation of only 0.25 dB in the range from 20 Hz to 50 kHz. These resistors are quite rare, so the circulation of both the first and second versions of the phono preamplifier is limited.
Remton audio 481 MK2 operates in the frequency response from 20 Hz to 20 kHz ±0.3 dB and has an adjustable input impedance (from 36 Ohm to 100 kOhm). Input capacitance can be in the values of 0, 47 pF, 100 pF, 147 pF, 220 pF, 267 pF, 367 pF, and the output impedance of the model is declared at 250 Ohms. Gain is also quite flexible - MM: 42dB, MC high: 62dB, MC low: 68dB.
The price of the Remton audio 481 MK2 phono preamplifier is just under 3,200 euros for the version for moving magnet (MM) cartridges and just under 4,200 euros for the version with step-up transformers for moving coil (MC) cartridges.
Specifications
This product is in the Hi-Fi and High End Electronics and Acoustics database
Phonostages — Remton audio 481 MK2
Model name
481 MK2
Inputs (balanced)
N/A
Inputs (single-ended)
2
MC current-sensing input impedance (Ω)
N/A
MM/MC voltage input impedance (Ω)
36 - 100000
Output impedance (Ω)
250
Gain (dB)
MM: 42dB, MC high: 62dB, MC low: 68dB
Playback EQ curves accuracy (dB)
0.3
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
20000
Total Harmonic Distortion + Noise (%)
N/A
Dimensions (mm)
386 x 295 x 85
Weight (kg)
8
Official link
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