JP2018014195A - Speaker cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a speaker cable in which a production frequency band from a low range to a high range is wide and whole band is clear as the goodness of the cleanliness of the sound of a single line cable being as it is, the articulation of reproduction sound is facilitated upon production, and, even in a speaker with any size, capable of drawing out its reproduction ability to the maximum.SOLUTION: Provided is a conductor of a speaker cable obtained by mixing many single line conductors 1 to 5 with different line diameters from 0.2 to 0.7 at multistage line diameters.SELECTED DRAWING: Figure 3

Description

The present invention relates to an improvement in sound quality of a cable connecting an amplifier and a speaker of an audio device.

It is well known in recent years that sound changes with cables in audio. The sound changes in all cables including speaker cables, headphone cables, RCA cables, USB cables, and power cables. The sound changes depending on the insulator, shield, sheath, conductor material and purity, and whether it is a stranded wire or a single wire, and the wire diameter of the conductor.

  Regarding the conductor wire diameter, the recognition that a conductor with a thin wire diameter is suitable for high sound reproduction and a conductor with a large wire diameter is suitable for low sound reproduction has already been established. This is conspicuous in single-wire cables, but the same applies to stranded cables. A stranded cable made of a thin conductor with a wire diameter of 0.15 mm, etc., has a good high-frequency range and has a broad sound, and as the number increases, the sound image becomes thicker, but a large number is required to reproduce rich bass. It becomes. A stranded cable made of a thick conductor having a wire diameter of 0.5 mm or the like has a thicker sound image and a richer bass range than a stranded wire cable made of a conductor having a thin wire diameter. This is the relationship between conductor wire diameter and sound quality common to analog cables and power cables such as speaker cables and RCA cables.

High-resolution sound sources with high resolution and a large amount of information can be downloaded and purchased over the Internet several years ago, and you can listen to the sound of recording studios at home and in a portable environment. The better the sound source, the wider the reproduction frequency band of the speaker cable, the clearer the entire band, and the better the sharpness. This is because the recorded sound is reproduced as it is without the specific band being emphasized or reverberation added by the cable.

In the past, stranded cable has been often used because of its good handling. However, the greater the number of twisted cables, the more the reproduced sound becomes sharper and blurring is added. Many people prefer it because of its softness and reverberation, but with the widespread use of high-resolution sound sources, the sharpness of the playback sound and clear single-wire cables are also gaining popularity.

However, a single wire cable has the disadvantage that a thin wire diameter has a high treble range and a high resolution, but a low bass range is small, and a thick wire diameter has a thick sound image and a rich low tone but a low treble range. It was. In order to reproduce in a wide band, a cable in which a thin signal wire is wound around a thick core wire has been invented as a line cable, but the thick wire is a core wire, and the signal wire has one type of wire diameter. (See Patent Document 1)

Audio cables composed of graded wire diameters have been devised that correspond to high to low frequencies due to differences in wire diameter, but the wire diameter is also significantly different from the present invention, and there are problems to be solved This is different from the present invention. (See Patent Document 2)

Composite multi-core cables that have different wire diameters and are compatible with low, mid, and high frequencies have been devised, but the low and medium sound conductors are single wires or stranded wires, and the high sound conductors are stranded wires. . Further, at the time of bi-wiring connection, a bass conductor is connected to the bass speaker, and one type of wire diameter is connected to one speaker terminal. The present invention is a speaker cable composed of a large number of single wire conductors having different wire diameters in stages, and is limited to connection to one speaker terminal, and the used wire diameter and frequency band are also clarified. ing. (See Patent Document 3)

ZONOTONE, a cable manufacturer, has also released expensive cables that combine highly pure conductors with very different wire diameters. Although several types are sold, the top series of speaker cables is composed of two sets of plus wire (wire diameter 0.5mm x 7) x 3+ (wire diameter 1.4mm x 1), minus wire (Wire diameter 0.08 × 120) + (wire diameter 0.12 mm × 70) + (wire diameter 0.18 × 4 + 26) + (wire diameter 0.32 × 19) and two sets of configurations It is a very thick cable.

As a single-wire speaker cable, Audio Technica has a wire diameter of 1.2 mm, Acoustic Revive has a wire diameter of 1.8 mm, AudioQuest has a wire diameter of 1.450 mm (15 AWG) × 2 and a wire diameter of 2.081 mm (14 AWG) × 2, Irungo Audio Co., Ltd. is a pure silver single wire with a wire diameter of 4.0 mm and a wire diameter of 2.5 mm, and 47 laboratories seem to be the thinnest single wire cable, but with a wire diameter of 0.4 mm and a wire diameter of 0.65 mm, etc. Sold.

The stranded wire speaker cables, from BELDEN, ⁱⁿ terms of real conductor cross-sectional ^{area, 0.5174mm 2, 0.8226mm 2, 1.309mm} 2, 2.081mm 2, 3.309mm 2 is substantially from Kanare electrical the conductor cross-sectional ^area, 1.0mm ^2, 2.5mm ^2, are sold several such 4.3 mm ^2.

    It is generally recognized that conductors with thin wire diameter are suitable for high-pitched sound reproduction and conductors with large wire diameter are suitable for low-pitched sound reproduction, but cable diameters range from thin to extremely thick, as in competition Conductor purity is increased, and high-end speaker cables exist up to 3 million yen in pairs. Looking at the current status of audio cables, it can be said that it is a period of chaos. In the cable, there is certainly an influence on the sound quality by insulators and sheaths other than the conductor, but it is the conductor itself and the wire diameter of the conductor that most affects the sound quality. The reason for the confusion is that the relationship between the wire diameter of the conductor and the reproduction frequency band has not been clarified.

JP 2004-273240 A Actual application 10-10786 Actual Application No. 8-2254

In the speaker cable, the sharpness of the sound of the single wire cable remains the same, the playback frequency band is wide and clear from the low range to the high range, and it is easy to adjust the playback sound at the time of production. Provide a speaker cable that can maximize its playback capability.

    Since the cable of the present invention consists of a mixture of conductors having different wire diameters, it is expressed as a single conductor regardless of the presence or absence of insulation in the sense of one conductor.

The wire diameter of 0.1 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm of enameled wire that is an insulated single wire conductor of 1.0 mm or less, As a result of trial listening test using 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm as one single speaker cable, It was found that the frequency characteristics can be handled with a margin from a high sound range to a low sound range in a wire diameter range of 0.2 mm to 0.7 mm.

Even if the wire diameter is 0.2 mm or 0.6 mm, both the high and low sound ranges are reproduced, but if you listen to a comparative audition, from 0.2 mm to 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, As the wire diameter increases to 0.7 mm, the center of the reproduction frequency band clearly shifts to the low frequency range. That is, the reproduced sound is specialized in a specific frequency band due to the difference in wire diameter.

When trying to obtain a well-balanced reproduction sound with a single wire conductor, the width varies from 0.4 mm to 0.5 mm, although the width varies depending on the reproduction equipment and preference. This indicates that the center of the reproduction frequency band in the single wire conductor having a wire diameter in this range corresponds to the midrange. The reason why even one is balanced is because it has a bandwidth.

However, the high sound region can be reproduced more vividly with a wire diameter of 0.3 mm, and the low sound region can be reproduced more richly with a wire diameter of 0.6 mm.

When the number of single wire conductors with a wire diameter of 0.3 mm is increased to 5 and 7 to make a twisted wire conductor, the sound image becomes thicker and the low frequency range appears, but it is 0.5 mm than when the wire diameter of 0.3 mm is increased by 3 wires. The bass range becomes richer if one is added. However, adding two additional 0.2 mm to the 0.3 mm7 wire diameter enhances the treble region, which is the center of the reproduction frequency band with a wire diameter of 0.2 mm, even though the overall wire diameter increases. That is, the reproduction frequency band of the single wire conductor is different depending on the wire diameter, and even when the mixed conductor is used, the reproduction frequency band is added without mixing the reproduction sound.

    When mixed single-wire conductors with different wire diameters are used as conductors, the reproduction frequency band is added without mixing the reproduced sound, which is noticeable in insulated single-wire conductors. The same tendency is shown when mixed.

In order to clearly reproduce the entire band from high to low frequencies, the reproduction frequency band is specialized for each band depending on the wire diameter regardless of the insulation of each single wire conductor constituting the conductor. The single wire conductors are mixed with graded wire diameters from 0.2 to 0.3mm, 0.4mm, 0.5mm, 0.6mm and 0.7mm from high to low frequencies. It is desirable to use a conductor. Although there seems to be a difference depending on the playback equipment and playback environment, the wire diameter and playback frequency characteristics of single wire conductors range from 0.2mm, 0.25mm, 0.3mm, and 0.35mm from ultra-high range to high range. The wire diameters of 0.4 mm, 0.45 mm, and 0.5 mm range from the mid-high range to the mid-low range, and the wire diameters of 0.55 mm, 0.6 mm, 0.65 mm, and 0.7 mm range from the low range to the very low range. The thinner the wire diameter, the closer to the high sound, and the thicker the wire diameter, the closer to the bass.

This is not limited because there are various factors such as low-frequency playback capability, current amount difference, and playback environment, but for small desktop speakers, etc., a large number of single-wire conductors with a stepped wire diameter are mixed to make a conductor. In this case, it was found that the low-pitched sound was not good when 0.55 mm or more was applied to the thick wire diameter on the low-pitched sound side. A thick wire diameter on the low sound range side is 0.5 mm, and a sufficient volume feeling in the low sound range can be obtained. In the book shelf type speaker for mini-components, the thick wire diameter on the low sound region side was 0.55 mm, and the low sound region was sufficiently reproduced. In the floor type speaker, if the thick wire diameter on the low sound region side is 0.55 mm, a sufficient low sound region is not reproduced, and a rich low sound region is reproduced by applying a wire diameter of 0.6 mm or more to the low sound region. In other words, the configuration with a wire diameter of 0.5 mm or more varies depending on the size of the speaker, the low-frequency reproduction capability, the amount of current, and the like caused by the woofer.

Regardless of the large or small size of the speaker system on the high sound range side, it is possible to express air feeling in the high sound range with a wire diameter of 0.25 mm, and wire diameters of 0.2 mm, 0.3 mm, 0.4 mm, etc. The wire diameters of 0.25 mm, 0.3 mm, 0.4 mm,... Even in a large speaker system, a small tweeter is assigned to the high sound range side, so there seems to be no difference from a small speaker in the high sound range.

Although it is a small desktop speaker, the conductor diameter is 0.25 mm, 0.3 mm, 0.4 mm, 0.5 mm, the conductor is too thin, the wire diameter 0.25 mm, 0.3 mm, 0 Although the configuration was .35 mm, 0.4 mm, 0.45 mm, and 0.5 mm, the reproduced sound was emphasized in the high frequency range. I tried to configure the wire diameter from 0.25mm to 0.65mm with a stepwise wire diameter in units of 0.05mm, so that the overall wire diameter may be large if it is a large speaker, Was emphasized, and the bass tone became worse. It was found that when the wire diameters were 0.25 mm, 0.3 mm, 0.35 mm in the high sound range and the wire diameters 0.55 mm, 0.6 mm, 0.65 mm in the low sound range, both the high sound range and the low sound range sounded too strongly.

As a result, the configuration tailored to the desktop speaker is a configuration with a wire diameter of 0.25 mm, 0.3 mm, 0.4 mm, and 0.5 mm, and a group with a wire diameter ranging from 0.2 mm to less than 0.3 mm, When classified into a group with a wire diameter of 0.3 mm to less than 0.4 mm, a group with a wire diameter of 0.4 mm to less than 0.5 mm, and a group with a wire diameter of 0.5 mm to 0.7 mm. , One from each wire diameter range group.

Further, by adding further from a group having a wire diameter of 0.2 mm or more and less than 0.3 mm, the super high-frequency to high-frequency articulation is further added from a group having a wire diameter of 0.3 mm or more and less than 0.4 mm. Thus, the articulation from the mid-high range to the mid-low range can be performed by further adding the articulation from the high range to the mid-high range from the group having a wire diameter of 0.4 mm or more and less than 0.5 mm.

The speaker cable of the present invention has a configuration in which a single wire conductor, each one specializing in a specific frequency band due to the difference in wire diameter, is mixed with a large number of stepped wire diameters from high sound range to low sound range, Although the number of components is small compared to a general stranded cable, the reproduction frequency band is wide and the number of components is small, so that a clear reproduction sound similar to that of a single wire cable can be obtained. Because single wire conductors with diameters specialized for specific frequency bands are mixed, precise reproduction sound can be adjusted by increasing or decreasing the number of specific wire diameters, maximizing the reproduction capacity of any size speaker system It can be pulled out.

The speaker cable of the present invention uses a large number of single-wire conductors having different wire diameters of 0.7 mm or less in mixed diameters as conductors, so that the reproduced sound is the same as that of a single-wire cable, and the low frequency range. The reproduction frequency band is wide from the high range to the high range, and the reproduction sound can be easily adjusted at the time of production, and the reproduction ability can be maximized with any size speaker system.

By knowing the relationship between the wire diameter of single-wire conductors and the reproduction frequency characteristics, it is possible to adjust the sound according to the stepwise wire diameter configuration and the number of wires used from each wire diameter range group, and it is possible to accurately respond to speaker systems of various sizes It is.

One example of the speaker cable of the present invention, a group having a wire diameter ranging from 0.2 mm to less than 0.3 mm, a group having a wire diameter ranging from 0.3 mm to less than 0.4 mm, and a wire diameter ranging from 0.4 mm to 0.4 mm. It is classified into a group having a range of less than 5 mm and a group having a wire diameter of 0.5 mm or more and 0.7 mm or less, and one wire diameter of each of the wire diameter range groups is 0.25 mm, 0.3 mm,. Sectional drawing of the speaker cable which mixed the insulated single wire conductor of 4 mm and 0.5 mm is shown. An example of the speaker cable of the present invention, a speaker using a single non-insulated conductor with a wire diameter of 0.25 mm, 0.3 mm, 0.4 mm, or 0.5 mm, one each from each wire diameter range group A cross-sectional view of the cable is shown. One example of the speaker cable of the present invention, one each from the range group of each wire diameter, and another one from the group of the wire diameter range of 0.5 mm to 0.7 mm, a wire diameter of 0.25 mm, Sectional drawing of the speaker cable which mixed the insulated single wire conductor of 0.3 mm, 0.4 mm, 0.5 mm, and 0.6 mm is shown. One example of the speaker cable of the present invention, one each from the range group of each wire diameter, and another one from the group of the wire diameter range of 0.5 mm to 0.7 mm, a wire diameter of 0.25 mm, Sectional drawing of the speaker cable which mixed 0.3mm, 0.4mm, 0.5mm, 0.6mm and the uninsulated single wire conductor is shown.

Insulation includes insulation with a coating such as vinyl, rubber, polyolefin, Teflon (registered trademark), silk, cotton, and paper, and insulation with an insulating coating such as an enamel coating.

The single wire conductor includes a wire made of an electrically conductive material in addition to a metal such as a copper wire, a silver wire, an aluminum wire, or an alloy wire, or a high purity wire thereof.

For production audition, enameled wire, which is an insulated single wire conductor, was stranded, and a heat-shrinkable tube was used for the sheath.

Just by examining the enameled wire which is an insulated single wire conductor, the wire diameters 0.2 mm, 0.21 mm, 0.23 mm, 0.25 mm, 0.26 mm, 0.28 mm, 0.29 mm, 0.3 mm, 0 There are many wire diameters such as .32 mm and 0.35 mm, and the wire diameter is not limited to the following examples. This is because the difference in wire diameter can be manufactured in units of 0.01 mm, and the same configuration can be achieved even if the wire diameter is slightly different.

Because there are differences in audio equipment and playback environment, the configuration of the wire diameter is one example, and this is not limited to this, but for desktop speakers, the wire diameter is 0.25 mm, 0.3 mm, 0.4 mm, 0.5 mm, bookshelf 0.25mm, 0.3mm, 0.4mm, 0.5mm, 0.55mm for speakers, 0.25mm, 0.3mm, 0.4mm, 0.5mm, 0 for tallboy and floor type speakers .6 mm, and in the case of a larger speaker, the configuration is 0.25 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, and 0.65 mm.

By changing the configuration of the conductor used from the group with a wire diameter of 0.5 mm or more to 0.7 mm or less in accordance with the size of the speaker and the bass reproduction capability, any size of the bass can be prevented without causing the low range. The speaker can also bring out its performance.

Since the playback frequency band depending on the wire diameter is known, if the high sound range is not enough, a group with a wire diameter of 0.2 mm or more and less than 0.3 mm is further added. Fine articulation is possible by adding a group in the range of less than 4 mm and adding a wire diameter corresponding to the frequency band. When the wire diameter configuration is 0.2 mm, 0.3 mm, 0.4 mm, and 0.5 mm, the wire diameter of 0.4 mm may be added or 0.45 mm may be added if there is not enough midrange. Good, but the thinner the wire diameter, the closer to the treble. In addition, when 0.4 mm which is the wire diameter in use is added, the frequency band is emphasized, but when 0.45 mm is added, the frequency band between 0.4 mm and 0.5 mm in use. The midrange is enriched by filling in. In the case of articulation, an increase in the number from each wire diameter range group is sufficient for one articulation, but it is not limited to one.

In recent years, the number of people who enjoy music with portable portable amplifiers and the like is increasing, and the disparity in the size and output of earphones, headphones, speakers, amplifiers, power consumption, etc. is widening. The speaker cable of the present invention has a wide reproduction frequency band, is clear in all bands, can easily adjust the reproduction sound at the time of production, and can be lined up according to the reproduction ability of the device. It is provided.

    By connecting the speaker cable of the present invention as an extension of about 50 cm to the speaker side of the speaker cable in use, the audio signal is separated and output in the frequency band of each wire diameter, so that the sound quality can be improved.

Unlike the wire diameter of the present invention, the headphone cable and earphone cable have a smaller speaker size, so that the high-frequency range is even thinner and the low-frequency range is likely to be 0.3 mm or less. It is expected that the sound quality will be improved in the same way by adopting the diameter configuration.

RCA cables used for amplifiers and playback equipment were also produced and viewed with mixed configurations of single-wire conductors with wire diameters of 0.25 mm, 0.3 mm, 0.4 mm, and 0.5 mm. Good playback sound was similar to the speaker cable. By changing the width of the wire diameter configuration in the same way as the size of the speaker system, it is possible to maximize the performance of the device depending on the output and power consumption of devices such as portable amplifiers to heavy-weight amplifiers.

For power cables, in audio systems with floor type speakers, wire diameters of 0.25 mm x 2, 0.3 mm x 2, 0.4 mm x 2, 0.5 mm x 2, 0.6 mm x As a result of a trial listening experiment with two wires, 0.7 mm × 2 wires and a plus wire and a minus wire, there was no emphasis on a specific band, and the reproduced sound was clear from a high sound range to a low sound range. The low-frequency range is somewhat unsatisfactory in the configuration up to a wire diameter of 0.6 mm, and the low-frequency range is too high in the configuration up to a wire diameter of 0.8 mm. It seems that the diameter range is suitable not only as a speaker cable but also as a wire diameter related to audio.

1 Conductor with a wire diameter of 0.25 mm 2 Conductor with a wire diameter of 0.3 mm 3 Conductor with a wire diameter of 0.4 mm 4 Conductor with a wire diameter of 0.5 mm 5 Conductor with a wire diameter of 0.6 mm 6 Insulation coating or insulation coating 7 Sheath

Claims (1)

A speaker cable consisting of a large number of single-wire conductors having a wire diameter of 0.7 mm or less and having stepwise different wire diameters, and a group having a wire diameter of 0.2 mm or more and less than 0.3 mm depending on the conductor wire diameter range , Groups with a wire diameter of 0.3 mm to less than 0.4 mm, groups with a wire diameter of 0.4 mm to less than 0.5 mm, and groups with a wire diameter of 0.5 mm to 0.7 mm The speaker cable is characterized in that at least one of each wire diameter range group is used as a conductor.