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Integrated amplifiers — Wattson Audio Madison AMPLIFIER
Description, images, technical data and specifications
Wattson Audio Madison AMPLIFIER
Image source — © Wattson Audio
Wattson Audio of Switzerland built the Madison Amplifier as a small stereo power amp, released on 6 April 2025 at about USD 6,500 or EUR 6,495. The design was developed together with CH Precision, the Swiss company with which Wattson had merged the previous year. There is no level control on board, which means a preamp or a source with adjustable output must drive it. The unit is designed and built entirely in Switzerland.
Key specs that matter
In stereo or bi-amp mode the Madison delivers 50 W per channel into 8 ohm, 75 W into 4 ohm and 100 W into 2 ohm. Bridged to mono it gives 50 W into 8 ohm, 100 W into 4 ohm and 150 W into 2 ohm. Gain is switchable between 20 dB and 26 dB, input impedance is 100 kOhm and the nominal input level is 2.0 V RMS. Bandwidth runs from 1 Hz to 400 kHz at -3 dB, signal-to-noise exceeds 120 dB (A-weighted), and THD+N stays below 0.05 percent. The chassis is 216 x 300 x 87 mm and weighs 6.0 kg, finished in Light Gray or Dark Gray.
Engineering and use context
Wattson, a small independent brand focused on minimal casework, chose a low-feedback Class A/B linear circuit with a fully symmetrical discrete amplification stage and a dual-mono layout that mirrors the two channels. Each channel uses a matched pair of bipolar output transistors. Power comes from an external regulated and filtered 36 V DC supply rated at 350 W, which feeds symmetrical DC converters inside the amplifier. Consumption is below 0.5 W in standby, 20 W at idle and up to 450 W at full output. The enclosure is milled from a solid billet of aluminium and shares the footprint and styling of the Madison Streamer. Three rear toggle switches select the operating mode (stereo, mono or bi-amp), the load setting for 2, 4 or 8 ohm speakers and the gain, while front buttons handle input choice, mute and standby. Firmware is updated over an Ethernet port.
Pairing
Wattson presents the amplifier as the natural companion to its Madison Streamer and Madison network DAC, which match its size and finish. Connections on the input side are XLR for balanced sources and RCA for single-ended ones. The maker states that the stereo, mono and bi-amp modes let the amplifier adapt to different systems and stay useful as a system grows, and in mono mode it runs as a high-current single-channel unit.
Alternatives
Wattson Audio lists no other amplifier model, as the Madison Amplifier is the only power amplifier in its range.
Key specs that matter
In stereo or bi-amp mode the Madison delivers 50 W per channel into 8 ohm, 75 W into 4 ohm and 100 W into 2 ohm. Bridged to mono it gives 50 W into 8 ohm, 100 W into 4 ohm and 150 W into 2 ohm. Gain is switchable between 20 dB and 26 dB, input impedance is 100 kOhm and the nominal input level is 2.0 V RMS. Bandwidth runs from 1 Hz to 400 kHz at -3 dB, signal-to-noise exceeds 120 dB (A-weighted), and THD+N stays below 0.05 percent. The chassis is 216 x 300 x 87 mm and weighs 6.0 kg, finished in Light Gray or Dark Gray.
Engineering and use context
Wattson, a small independent brand focused on minimal casework, chose a low-feedback Class A/B linear circuit with a fully symmetrical discrete amplification stage and a dual-mono layout that mirrors the two channels. Each channel uses a matched pair of bipolar output transistors. Power comes from an external regulated and filtered 36 V DC supply rated at 350 W, which feeds symmetrical DC converters inside the amplifier. Consumption is below 0.5 W in standby, 20 W at idle and up to 450 W at full output. The enclosure is milled from a solid billet of aluminium and shares the footprint and styling of the Madison Streamer. Three rear toggle switches select the operating mode (stereo, mono or bi-amp), the load setting for 2, 4 or 8 ohm speakers and the gain, while front buttons handle input choice, mute and standby. Firmware is updated over an Ethernet port.
Pairing
Wattson presents the amplifier as the natural companion to its Madison Streamer and Madison network DAC, which match its size and finish. Connections on the input side are XLR for balanced sources and RCA for single-ended ones. The maker states that the stereo, mono and bi-amp modes let the amplifier adapt to different systems and stay useful as a system grows, and in mono mode it runs as a high-current single-channel unit.
Alternatives
Wattson Audio lists no other amplifier model, as the Madison Amplifier is the only power amplifier in its range.
Specifications
Model name
Madison AMPLIFIER
Type
integrated amplifier
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
N/A
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
100000
Output impedance (balanced) (Ω)
100000
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 x 50
Output power (4Ω) (W)
2 x 75
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
1
Frequency response high +/- 3dB (Hz)
400000
Signal to Noise Ratio (dB)
120
Total Harmonic Distortion + Noise (%)
0.05
Damping factor
N/A
Dimensions (mm)
216 x 300 x 87
Weight (kg)
6
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