Why Ansar Polypropylene Audio Capacitors?

Many capacitors claim to be audio-grade components, but these are very often standard or sub standard products, re-labelled for the audio industry. Ansar is an old established British manufacturer specialising in High End Audio polypropylene capacitors. Ansar work closely with many of UK's top quality audio/speaker manufacturers. Materials and production techniques have been selected for their superb acoustic and electrical characteristics, without compromise. All our Ansar range is specified at ±5% tolerance. Ansar capacitors can be used anywhere in the signal patch from pre-amps, power amplifiers and loudspeaker crossovers.

Polypropylene

Polypropylene has remarkable audio properties. It is important to get the audio signal across the plates of the capacitor with the minimum degradation (ie loss angle). Polypropylene has a dissipation loss angle factor of 0.001δ which compares extremely favourably with other dielectrics. By careful manufacturing and choice of materials Ansar achieve dissipation factors to 0.0001δ. 

Audio Signals

Audio signals pass across capacitor vacuum deposited aluminium plates which are extremely thin (fractions of a micron). This thinness causes unwanted resistance to the signal. Ansar capacitors use material that has undergone double vacuum deposition, thereby halving the resistance, resulting in a transparent audio signal path. 

Element Winding

The main part of the capacitor is a tight coil of dielectric and metallised plates. This process is automated, but the machines are attended at all times to ensure consistency. Every batch of product is manufactured to exacting standards. Ansar uses high tension winding processes to ensure that the windings are extremely tight. A pressure roller is used to press up against the element to remove air from the winding. Air pockets can degrade the signal.

Voltage Proofing

All Ansar capacitors undergo a 15-minute proof test to voltages 50% higher than their normal working voltage. The test is carried out to ensure that the capacitors are capable of comfortably withstanding spikes.

High Temperature Treatment

Just after the capacitor elements are wound, they are subjected to several hours of high temperature treatment, just below the melting point of the dielectric, making the dielectric slightly pliable. This allows the capacitor to contract, and the layers to actually bond with each other. The finished product is an extraordinarily highly stable capacitor, eminently suitable for exceptionally high fidelity audio.

They are available in the following values

0.1uF (100nF) 630V ±5% 11x30mm

0.15uF (150nF) 450V ±5% 8x32mm

0.22uF (220nF) 450V ±5% 10x30mm

0.33uF (330nF) 450V ±5% 18x30mm

0.47uF (470nF) 450V ±5% 9x32mm

0.68uF (680nF) 450V ±5% 11x32mm

1uF 450V ±5% 13x32mm

1.5uF 450V ±5% 15x40mm

2.2uF 450V ±5% 15x43mm

3.3uF 450V ±5% 16x43mm

4uF 450V ±5% 25x42mm

4.7uF 450V ±5% 25x44mm

5uF 450V ±5% 25x44mm

6.8uF 450V ±5% 25x44mm

8uF 450V ±5% 27x44mm

10uF 450V ±5% 30x43mm

12uF 450V ±5% 32x42mm

15uF 450V ±5% 34x55mm

16uF 450V ±5% 35x55mm

18uF 450V ±5% 35x55mm

22uF 450V ±5% 38x56mm

25uF 450V ±5% 42x55mm

30uF 450V ±5% 45x55mm

40uF 450V ±5% 52x55mm

50uF 450V ±5% 46x83mm

60uF 450V ±5% 48x83mm

75uF 450V ±5% 55x83mm

80uF 450V ±5% 57x83mm

100uF 450V ±5% 58x110mm

125uF 450V ±5% 65x83mm