Musical Fidelity is probably best known for its
A1 integrated amplifier, a Class AB amplifier, rated at 25W per channel. These utilised a bias level and casework configuration that led to excessive heat generation, leading to habitual failures, of both mains transformers and (85 DegC rated) electrolytic capacitors. The manufacturer's marketing material claimed that the unit produced "...
a very sweet, authentic sound, reminiscent of tube amplifiers." This was launched in 1985 and sold over 100,000 units over its lifetime. In 1986, the A370 power amplifier was launched – at that time unusual (in the UK) for being a rack-mountable domestic amplifier. It produced 185 Watts per channel. These were the first of their type to be made by a UK hi-fi company. Then followed a range of well received loudspeakers, the MC series (designed by Martin Colloms) and the Reference series, featuring 'TPX'
polypropylene drivers. A year later, the
Digilog was launched, one of the first stand-alone production DACs. In the late 1980s Musical Fidelity introduced further amplifiers, including the
P170 and high-powered rack mount style amplifiers, including the
P270,
A370 (all featuring Hitachi lateral MOSFETs) and the SA470
, SA570. In the early nineties, Musical Fidelity released the P180, with
CRPS (Choke Regulated Power Supply). This was possibly the first time bifilar wound coils had been combined with transistor electronics. This design innovation helped suppress electro-magnetic radiation frequencies (EMF), reducing the amount of potential noise interference into the audio circuits . In 1992, the
A1000 was launched – one of the first 'super integrated' amplifiers, with a full range of line level inputs coupled to a Class AB power amplifier section producing 50W / channel into 8 ohms. Initially it was only made for Japan but later was well received around the world. The
X series was launched in 1997 consisting of a range of cute extruded cylindrical add-on components, which later spawned the
XA series. The units consisted of various amplifiers, Digital-to-analogue converters, Phono stages, tuners and CD players and ancillary power supplies. The
NuVista preamp was introduced in 1997, the first modern, mass-produced audio product using
Nuvistor tubes, which were miniature metal-ceramic enclosed vacuum tubes manufactured by RCA . These were followed by power and integrated amplifiers, with ancillary power supplies. Numerous products have descended from it, such as the
Tri-Vista 21 ‘Super DAC’, introduced in 2002, culminating in the latest being the
NuVista 800. The
kW Pre- and Power Amp was introduced in 2003. The power amplifier was then the highest power audiophile-grade power amp ever made commercially by a UK audiophile company, producing 1 kW of power per channel into 8 ohms. Notably, two mono-blocs and their power supply weighed in at 129 kG. It was followed by the
Titan, an upgrade from the kW. In 2015, the
Merlin was released, a multi-format music system that came with a turntable, wireless streaming and a pair of unique speakers, allowing users to play vinyl records and stream digital music over high quality apt-X Bluetooth, in a very compact form factor. As of 2018 , the products consist of the
Nu-Vista,
M8,
M6,
M5si,
M3,
MX,
LX2, and
V90 Series as well as the
Encore Streaming Music servers. Most of the series provide a mix of Phono stages, integrated amplifiers, DACs, CD players and Headphone amplifiers. The
Nu-Vista series continues in the tradition of using a mix of Nuvistor tubes, transistors and Digital technology. == Musical fidelity CDs ==