07.01.2026 06:36 | ~1 minute read
British audio company Rega Research introduced the Mercury preamplifier and Solis power amplifier at Munich's High End show - back in 2024. Now, at last, these newcomers are available.

The Mercury Preamp features both analog and digital inputs served by a high-quality DAC. The Solis stereo power amplifier delivers 168 W per channel into 8 Ohms load. Hand-built to unlock the true potential of Hi-Fi systems, the Mercury achieves exceptionally low noise levels enabling outstanding dynamic range. The power supply features a large toroidal transformer - at 14 kg, the Mercury is no lightweight. Specified frequency response extends from 8 Hz to 28,000 Hz with THD+N of 0.001%.
The Solis Power Amplifier is designed to confidently drive the most demanding loudspeakers, positioned as the ideal partner for the Mercury. The fully balanced "dual-mono" architecture extends to the power supply: each power amplifier channel is fed by a separate toroidal transformer. The UK price is £6,950 each.
This product is in the Hi-Fi and High End Electronics and Acoustics database
Model name
Mercury
Analog inputs (balanced)
1
Analog inputs (single-ended)
4
Analog outputs (balanced)
1
Analog outputs (single-ended)
1
Gain (dBu)
N/A
Input sensitivity (mV)
N/A
Output voltage (V)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Maximum output level (balanced) (dBu)
N/A
Maximum output level (single-ended) (dBu)
N/A
Volume control range (dBu)
N/A
Frequency response low +/- 3dB (Hz)
8
Frequency response high +/- 3dB (Hz)
28 000
Signal to Noise Ratio (SNR, unweighted) (dB)
N/A
Total Harmonic Distortion + Noise (THD+N) (%)
0.001
Dimensions (mm)
435 x 97 x 380
Weight (kg)
14
Official link
This product is in the Hi-Fi and High End Electronics and Acoustics database
Model name
Solis
Input sensitivity (mV)
820mV at 35kΩ (RCA), 1.64V at 26kΩ (XLR)
Input impedance (balanced) (Ω)
26 000
Input impedance (single-ended) (Ω)
35 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
168
Output power (4Ω) (W)
305
Gain (dBu)
33.3
Frequency response low +/- 3dB (Hz)
15
Frequency response high +/- 3dB (Hz)
30 000
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
0.015
Max power consumption (W)
500
Damping factor
N/A
Dimensions (mm)
435 x 140 x 385
Weight (kg)
24.8
Official link