Tannoy - Mercury V1 Custom Heavily Modified Variant Speaker set

Tannoy MERCURI V1 from 2013 manually modified to improve harmonics and sensitivity with wooden laminated multistrip birch horns and the lower section internally redone to increase the response at low frequencies.

All components are the original Tannoy Mercury V1 parts except the RCA pins swapped for a higher-end model (gold version) and the feet not present in the original version.

The horns have an outer diameter of 14 cm x 17 cm in depth, turned on a lathe. The total cabinet height with the feet is 63 cm.

The original pre-modification specifications were as follows:

Power amplifier recommended from 10 to 70 Watts RMS
Peak 100 Watts and 50 Watts continuous RMS
Sensitivity 2.83 volts @ 1 m 86 dB
Impedance 8 ohms
Frequency response (-6 dB) 45 Hz - 25LHz

Tweeter 25 mm polyester dome with neodymium magnet
Woofer 130 mm cone coated with multilayer fiber shielded
Linkwitz-Riley 4th order crossover

The cabinets were clad after modifications with matte red adhesive film and the front panel in suede leather in Sonos Faber style. The front panel is MDF as are the rest of the external panels of the cabinets.

The sound is decidedly better than the original specifications.