Remton Audio · 481
481 MK2 tube phono stage
Precision vacuum tube amplification designed for the purist analog enthusiast.
The 481 tube phono stage represents a refined evolution in the Remton Audio lineup, designed to extract the finest details from your record collection. By adhering to a minimalist circuit topology, it ensures that the character of the performance remains authentic and uncoloured.
Positioned as a high-performance solution for dedicated enthusiasts, the 481 excels in its ability to manage a wide variety of cartridges. Its passive RIAA equalisation and hand-selected components create a stable, low-noise platform that avoids the artefacts often associated with complex active stages.
The sound signature is defined by its organic presence and rhythmic accuracy. Listeners will note a soundstage that is both wide and deep, underpinned by a controlled low-end response that brings life to both modern and vintage pressings. It is an instrument for those who prioritise the emotional weight of music over analytical coldness.
Key Features
01
Zero negative feedback
The circuit design eliminates global feedback to preserve the natural harmonic structure and timing of the signal.
02
Passive RIAA equalisation
This implementation ensures superior phase response and avoids the sonic degradation inherent in active filtering.
03
Precision loading
Adjustable settings for input impedance and capacitance allow for perfect matching with a wide range of moving magnet and moving coil cartridges.
04
Soft-start power supply
The high-voltage supply is engineered to protect the vacuum tubes, ensuring longevity and consistent performance.
Chapter 01
Engineering Philosophy
Remton Audio operates on the principle that the simplest signal path is the most effective. The 481 uses a matched complement of vacuum tubes to manage gain and equalisation, avoiding unnecessary stages that might introduce noise. By focusing on high-grade passive components, the design remains neutral while retaining the desirable musicality of tubes.
Chapter 02
Build and Materials
Every unit is hand-assembled with a focus on structural integrity and component quality. The steel enclosure is finished to provide excellent shielding against electromagnetic interference, while the robust chassis helps to decouple the delicate circuitry from external mechanical vibrations. This is equipment built for daily use and long-term reliability.
Chapter 03
Sonic Signature
The 481 does not rely on artificial brightness to capture attention. Instead, it invites the listener into the recording with a sense of flow and palpable instrument density. It renders complex, multi-layered music with ease, ensuring that the listener remains connected to the performance.
Specifications
TypeTube phono stage
Frequency response20 Hz to 20 kHz ±0.3 dB
Impedance36 kOhm to 100 kOhm
Dimensions (H × W × D)85 × 386 × 295 mm
Weight8 kg
Input capacitance0, 47 pF, 100 pF, 147 pF, 220 pF, 267 pF, 367 pF
Output impedance250 Ohms
GainMM: 42dB, MC high: 62dB, MC low: 68dB