We are always making efforts to discover necessities for ga new Electro Sound Fieldh (the aim: to arouse deep impression in onefs inside). Up to now, they are gHigh Qh and gfaithful reproduction of precise wave formh. In order to implement by hardware, we are always finding components of good identity in used apparatus and we are making a new apparatus utilizing them on the base of gthe best tone-qualityh.
We have confidence to be sure of the sound quality because the apparatus is a remake of severely selected used ones. Changes of ICs, components, remaking of chassis and remaking of power supply part are important; precise adjustment of position of power transformer, precise balance of rectifying diode bridge and rectifying electrolytic capacitors.
These effort concludes reproduction of n*, n** and functional beauty with careful setting of apparatuses.
(as to n*, n**; see the foot note of Top)

Details of manufacturing are: point supports of chassis about 0.1mm precision, changing to good components, cutting of circuit board and adjusting supports. Control of unexpected vibration will never be compromised by a method of ggum suppressionh. The sound of warm and strong, low gravity is obtained by careful selection of electrolytic capacitors and film capacitors.
Digital distortions are suppressed by the revolutionary idea of Patent p096010 which decreases both time jitters and amplitude errors.

Concerning the speaker box, gHigh Qh requirements are realized by adamant brazen ports, point support, and varnished inside with carefully adjusted small quantities of acoustic absorbent materials. Wave front is carefully adjusted, and these idea and efforts bring about the sound of n*, n** (as to n*, n**, see the foot note of TOP).
Almost of all apparatus are evaluated as ggood functional beautyh.


  • Extra HI System M Ver.1

  • Stable good reputation have been decided since n*, n** are reproduced as an extreme system of gA new Electro Sound Fieldh. If you assemble it by yourself, the price becomes half. Please contact us.

    Frequency CharacteristicsF(0.01Hz) 70-18000Hz
    Output Power:20W, Semi A class Transistor amp.
    Distortions: 0.02%, Power efficiency: 89dB
    unitF10cmƒÓ cone paper is just like traditionally famous Hawleyfs wood pulp, Super Alnico Magnet. Qo=0.35. NEGLEX 2804 cord.
    BoxF Apitong inside, brass port with adapters of vibration control. Structure of Standing wave free. Acoustic absorbent: carefully adjusted.
    W:20cm, D:20cm, H:30cm
    3Kg (speaker/1)
    Historical excellent performance of cellos at the White House: gSong of birdh by Pablo Casals swell us (n**):(see foot note of TOP).


  • Extra HI System M@Ver.2

  • The practicable main system to realize gA new Electro Sound Fieldh(Plane wave, High Q). The sound of Extra HI System M Ver.2 realizes n*, n** and just like a ‚ˆ‚‚Œ‚‚‡‚’‚‚‚ˆ‚‰‚ƒ sound field, warm, low gravity and never muffled sound.
    The sound is differently superior to conventional gHigh End Audioh.

    Frequency CharacteristicsF(0.01Hz) 16-25000Hz, Power efficiency: 98 dB. Distortion 0.05%, Amp.: remake of HMA1001G 40W.
    Multi Channel Method, with passive network supper tweeter.
    Analogue type Channel Divider HMCD-1, fc820Hz
    Unit: specially developed Woofer: 25cmƒÓwith super strong Alnico- Magnet: Qo = 0.184! Squawker :JBL LE85+wood hone SS500, Tweeter FOSTEX T-500II.
    Speaker: W 60cm,D 50cm,H 85cm
    50Kg (1speaker) With caster. 3 points support by at setting.
    Price: contact us.


  • Extra HI System M Ver.1f

  • Low price but to keep the sound quality of Ver.1.
    Speaker; Carefully adjusted with remade selected 10cmƒÓspeaker unit to reproduce n*, n**, and the inside is vanished over.
    Completely remade of selected DVD player; change to selected capacitors mainly at power supply, vibrations control of chassis by
    loading adequate weight carefully at selected positions and patent circuits.
    Amplifier;
    The price is 1/8 of Ver.1, I recommend it to young persons, and grandchildren to raise aesthetic sense.

    Frequency CharacteristicsF30-18000Hz.


    @@@@
    Output power 20W, class Af distortionsF0.02%.
    Speaker, Amp, DVD player, 3 poit support.
    Formation of gplane waveh utilizing back wall.
    Reproduction of n*, n** and Low tone of Organ.
    Size is small! Total width of the system is 65cm.
    NEGLEX2804Speaker cord, Specially selected.
    add if you want.


  • Extra HI System M Ver.2@model 3

  • For any usage of studio or conference room. Plane wave reproduction system with 8 woofers, Squawker: famous JBL 375+2397 and 16 tweeters. The woofer is the same as used in Ver.2 described above. Fore and aft adjustment of the squawker and the tweeter are
    set by accuracy within 1mm. We have used for some lectures with demonstrations. Created sensation. Any transfer is possible.

    Frequency CharacteristicsF(0.01Hz) 10-30000Hz
    distortions 0.05%,, Amplifier : HMA-1001G (remade) 40W 2
    Multi Channel Method.
    Analogue Channel Divider ,HMCD-0,fc640Hz
    Woofer units of four 25cmƒÓiQo=0.184j and Squawker JBL: 2397{375 and eight super tweeter each L and R channels.
    Woofer Box:W:79cm,D64cm,H73cm
    65Kgispeakerj with 4 casters each.
    The maximum sound power of 110dB. We have never heard such completely satisfied a low tone as this system. (studentsf evaluation)
    Mid range: an excellent famous driver JBL375 is supported by mid ship. Boxes are 3 point supported by level Jack.


  • New Products: Extra HI System M Ver.4

  • Newly designed dual concentric single corn speaker with Hawley corn diaphragm and electromagnet.
    From the basic research of ga new Electro Sound Fieldh, it is clarified that the faithful reproduction of
    wave form of an input signal especially the faithful reproduction of transient parts is indispensable.
    Performance of the reproduction of transient parts by electromagnet is splendid.
    The sounds atmosphere is just like old movie theaterfs one. It will be greatly enchanted.

    Frequency characteristicsF(0.01Hz)18-30000Hz
    Our special idea of Dual concentric type, Hawley corn diaphragm and electromagnet.
    Careful adjustment of voice coil cap realize the optimum response of ƒÄ0.69 of 2 dimensional control mode.
    Brass ring around speaker unit intend to  restore lost higher harmonics (restoration). 
    Inside of box: the surface of sliced veneer is apitong. Port is made of brass, and High Q.
    Box is 3 point supported by level jacks. 
    Splendid sound! As to of Finger Picking of Bass !



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    • Big discover to improve the sound of CD.
      The weight of CD disc varies 13g - 17g. Otherwise, inborn optimal CD weight exists for each CD player.
      You can get the best sound by setting adjust rings. We will prepare adjust rings. Please contact us.