| Description: | The foundation research LC1 is an AC Line Filter. The LC1 may be used to power a wide range of low powered audio equipment. Included are preamplifiers, CD players, CD transports, DACs, tuners, tape decks, phono stages, turntables and passive electrostatic loudspeaker systems. |
| Rationale: | The ac power line injects noise into audio equipment. A filter
removes noise from the ac power line by presenting an impedance mismatch
to the undesirable noise signal. An impedance mismatch reflects noise
back into the power line. This fundamental behavior is that of a
band reject filter. Another source of noise is the audio equipment itself. The power supplies in audio equipment inject noise back into the power line. Large power supplies like those in power amplifiers tend to create more noise. A power amplifier delivers noise to a preamplifier plugged into the same power source. Digital components can also be significant generators of power line noise. When noise is removed from an audio system, the system sounds better. The degree of sonic improvement obtained from noise filtration depends on several factors. The level of ac power line noise varies between locations and with time of day. The noise sensitivity of audio equipment and the noise generated by the equipment varies. The degree of noise removal between different filters varies dramatically. The sensitivity of listeners to noise is by no means a constant. The LC1 and LC2 ac power line conditioners are bi-directional noise filtration systems. They stop a great deal of power line noise from entering audio equipment and also stop the audio equipment from injecting noise back into the power line and hence into other components. This is why an individual filter per audio component is so desirable. Each component receives a largely isolated source of nearly noise free ac power. |
| Technical Specifications: | Integrated AC power line conditioners/power cords, 8’ x 14 AWG LC1: 6 amps RMS / 8 amps peak The LC1 is an enhanced power cable with a dedicated line conditioner positioned in the center of the cable length. The total length of this dedicated integrated power cable/line conditioner is 8 feet. The body of the conditioner measures 8 inches long, 5 ½" wide and 2 ½" high (not including the supplied rubber feet). The cable ends are terminated with high quality connectors that include a Pass & Seymour hospital grade AC plug for the outlet and a Schurter IEC320 IEC receptacle to the component. The cable is approximately ½" thick and consists of an outer sheath, a woven shield, and three insulated high-purity copper stranded cores. |
| Price: | LC1: $795 |
| Description: | The foundation research LC2 is an AC Line Filter. The LC2 is recommended for all power amplifiers up to the approximate maximum ratings mentioned below in the "Technical Specifications" section. |
| Rationale: | The ac power line injects noise into audio equipment.
A filter removes noise from the ac power line by presenting an impedance
mismatch to the undesirable noise signal. An impedance mismatch reflects
noise back into the power line. This fundamental behavior is that of
a band reject filter. Another source of noise is the audio equipment itself. The power supplies in audio equipment inject noise back into the power line. Large power supplies like those in power amplifiers tend to create more noise. A power amplifier delivers noise to a preamplifier plugged into the same power source. Digital components can also be significant generators of power line noise. When noise is removed from an audio system, the system sounds better. The degree of sonic improvement obtained from noise filtration depends on several factors. The level of ac power line noise varies between locations and with time of day. The noise sensitivity of audio equipment and the noise generated by the equipment varies. The degree of noise removal between different filters varies dramatically. The sensitivity of listeners to noise is by no means a constant. The LC1 and LC2 ac power line conditioners are bi-directional noise filtration systems. They stop a great deal of power line noise from entering audio equipment and also stop the audio equipment from injecting noise back into the power line and hence into other components. This is why an individual filter per audio component is so desirable. Each component receives a largely isolated source of nearly noise free ac power. |
| Technical Specifications: | LC2: 20 amps RMS / 28 amps peak The larger LC2 is very similar to the LC1 in operation and only differs physically by an inch in length and is designed for all but the largest amplifiers. The LC2 and Maximum Power Amplifier Power Ratings |
| Price: | LC2: $995 |