Wattson Audio's $5,495 Madison Phono Takes RIAA Out of the Analog Path

Swiss manufacturer Wattson Audio has announced the Madison Phono, a compact phono stage built around an unusual proposition: that record equalisation does not belong in the analog signal path at all. Instead of shaping the cartridge signal with analog filter networks, the Madison Phono amplifies it linearly, converts it to digital at 32-bit/384kHz DXD resolution, and then applies the correction curves as maths.

The company, based in Preverenges, Switzerland, lists an MSRP of $5,495 USD (€5,240 including VAT), with availability now through authorised Wattson Audio retailers.

Equalisation as a calculation, not a filter

Every vinyl record is cut with a deliberate frequency imbalance — bass reduced, treble boosted — that the playback chain has to undo. In a conventional phono stage that inverse curve is realised with resistors and capacitors sitting directly in the audio path, which means the accuracy of the curve and the quality of the amplification are bound together in the same circuit.

The Madison Phono separates the two jobs. Wattson's description of the architecture has the cartridge feeding a fully linear analog amplification stage — no equalisation applied — after which the signal is digitised at 32-bit/384kHz DXD. Curve correction and filtering then happen in the digital domain, where a target response is a set of coefficients rather than a collection of component tolerances. The manufacturer quotes an accuracy of ±0.1 dB for the resulting curves.

That approach also makes multiple curves cheap to implement, which is the second half of the story. Rather than RIAA alone, the Madison Phono offers RIAA, Columbia, Teldec, EMI and Decca equalisation. The point, as the press release frames it, is that records mastered to different historical standards — the pre- and early-RIAA era in particular, when individual labels used their own curves — can be replayed with the tonal balance their cutting engineers intended, rather than forced through a single modern curve.

Both digital and analog outputs are fitted, so the unit can hand off to a DAC-equipped system digitally or feed a conventional line input. Wattson has not published a figure for the digital output's sample rate in the material available, and the 32-bit/384kHz specification refers to the internal conversion stage.

One chassis, three cartridge front ends

The other notable piece of the design is modularity at the input. The Madison Phono uses swappable input boards, and three exist. Crucially, each unit ships with one board, specified at the time of order, and only one can be installed at a time. The board can be replaced later, and additional boards are priced at $500 / €500 including VAT each.

• Voltage board — intended for moving magnet and high-impedance moving coil cartridges. It uses a linear-stage amplification circuit with four defined gain and load settings.
• Current board — intended for low-impedance moving coil cartridges. Wattson describes this as a true active transimpedance amplifier, derived from CH Precision technology and unique to Wattson Audio. Rather than reading the cartridge's voltage output, it takes the current signal directly at the input, which the manufacturer says reduces sensitivity to cable and loading interactions.
• Optical board — intended for DS Audio photo-electric cartridges, operating in photoconductive mode around a true active transimpedance amplifier.

It is worth being precise about the CH Precision reference, because the two companies are described separately in the release's boilerplate: the claim is that the transimpedance circuit in the current board is derived from CH Precision technology, not that CH Precision builds, owns or endorses the Madison Phono.

Taken together, the three boards mean the same chassis can be configured for a high-output moving magnet, a low-impedance moving coil run in current mode, or an optical cartridge — three quite different electrical relationships with the pickup, handled by changing one card rather than changing the product. The flip side, plainly, is that a system running two turntables or two very different cartridges simultaneously is not what this design accommodates; one board is installed at a time, and swapping is a deliberate act rather than a front-panel selection.

Power supply option

Wattson also offers an external power supply upgrade called PowerS, which is shared across other Madison products. No price for it was given in the announcement material, and it is presented as optional rather than as part of the standard configuration.

What has and hasn't been established

Everything above comes from Wattson Audio's own announcement, reproduced in full by Tracking Angle, with Hifi Pig reporting the same architecture and availability independently. No published review of the Madison Phono exists in that material, so the ±0.1 dB curve accuracy, the benefits attributed to current-mode input and the general merits of digitising after a linear analog gain stage remain manufacturer claims rather than measured or listened-to findings.

What is reportable is the shape of the decision Wattson has made. Digitising a phono signal at the front of the chain is a choice that some listeners will regard as the cleanest way to get an accurate curve and five of them at once, and others will regard as an unwelcome analog-to-digital conversion inserted into the one source that had avoided it. The Madison Phono does not hedge on that question; it picks a side, prices it at $5,495, and leaves the argument to the people buying.

Key specifications

• Type: compact phono stage with internal digitisation; digital and analog outputs
• Conversion: 32-bit/384kHz DXD
• EQ curves: RIAA, Columbia, Teldec, EMI, Decca — applied digitally, quoted at ±0.1 dB
• Input boards: voltage (MM / high-impedance MC, four gain and load settings), current (low-impedance MC, active transimpedance), optical (DS Audio photo-electric); one installed at a time, specified at order, replaceable later
• Optional: external PowerS power supply, shared with other Madison products
• Price: $5,495 USD / €5,240 inc VAT; additional input boards $500 / €500 inc VAT each
• Availability: now, through authorised Wattson Audio retailers

Frequently asked questions

What is the Wattson Audio Madison Phono and how much does it cost?

The Madison Phono is a compact phono stage from Swiss manufacturer Wattson Audio that amplifies the cartridge with a linear analog stage, then digitises the signal and applies record equalisation in the digital domain. It carries an MSRP of $5,495 USD or €5,240 including VAT, and is available now through authorised Wattson Audio retailers.

Which equalisation curves does the Madison Phono support?

The Wattson Audio Madison Phono supports five equalisation curves — RIAA, Columbia, Teldec, EMI and Decca — all applied in the digital domain to a manufacturer-stated accuracy of plus or minus 0.1 dB. Wattson presents this as allowing records mastered to different historical standards to be replayed with their intended tonal balance.

What are the three Madison Phono input boards?

The Madison Phono uses three interchangeable input boards: a voltage board for moving magnet and high-impedance moving coil cartridges with four gain and load settings; a current board for low-impedance moving coil cartridges using an active transimpedance amplifier; and an optical board for DS Audio photo-electric cartridges.

At what resolution does the Madison Phono digitise the cartridge signal?

The Wattson Audio Madison Phono digitises the cartridge signal at 32-bit/384kHz DXD resolution after a fully linear analog amplification stage. Equalisation curves and filtering are then applied digitally. Wattson has not published a sample rate for the unit's digital output; the 32-bit/384kHz figure refers to internal conversion. Both digital and analog outputs are fitted.

Can the Madison Phono's input board be changed after purchase?

Yes. Each Madison Phono ships with one input board, specified at the time of order, and only one board can be installed at a time. Wattson Audio states the board can be replaced later, with additional input boards priced at $500 or €500 including VAT each.

This article was written by an AI system from Into The HiFi AI Desk, generated from the following sources, with no human editing pass before publication: Tracking Angle — Wattson Audio Unveils Madison Phono Preamp—Analog Soul Combined With Digital Precision, Hifi Pig — Wattson Audio Madison Phono.