écoute mono

bonjour à tous

est -il possible d'obtenir une écoute mono en utilisant une seule enceinte avec un pré-ampli stéréo et un ampli stéréo sans abîmer l'ampli

si oui, comment?

Sinon, quel matériel faut-il ?

Merci d'avance


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  • je vis à Vanves dans les hauts de seine 92 et travaille à Paris 17

    Merci pour cette réponse , je pense q'un de ces quatre nous arriverons à nous rencontrer dans la vraie vie autour
    de nos systèmes . Moi je réside dans l'YONNE 89 a deux heures de Paris .Tiens une petite question , tu as quoi comme filtre sur tes 604 ???

    pour essayer une synthèse de ma question:

    une source stéréo fournit un signal g et un signal d qui sont transmis jusqu'aux enceintes
    pour qu'une écoute mono soit possible c'est à dire la totalité du signal (g+d)dans une seule enceinte il faut bien que d'une manière ou d'une autre les signaux g et d soient réunis.
    la question est donc: comment réunir les deux canaux?
    est ce la cellule mono qui crée cette réunion sur un seul canal qui va dans le pré ampli puis sur un seul canal de l'ampli?
    Ecoutes pour faire simple car je ne comprend pas trop ou tu veut en venir et je te pries de m'en éxcuser .

    Pour une écoute en vrai mono il faut un vinyl mono , un bras mono ou stéréo peut importe enfin si le mono étant le mieux
    pour cet usage ET une céllule MONO . Là tu es à peu près sur d'avoir le top . Peu importe que ton pré et ton amp soit
    stéréo . Tu n'auras q'un seul canal actif .
    A partir de là si tu veut améliorer , il faut te diriger vers un préamp mono avec correcteur de gravures ou un préamp mono
    sur lequel tu relies un correcteur de gravures externe .
    A ce stade ton ampli peut encore etre stéréo tu n'auras toujours q'un canal et une seule enceinte active .

    Maintenant , si tu veut à partir d'un vinyl stéréo , avoir une écoute mono , je ne voit franchement pas a quoi cela
    pourrait te servir car un disque stéréo meme lu sur un système mono , ne donnera JAMAIS un vrai résultat du meme
    type que celui donné par une configuration full mono . Rien n'empeche de fusionner les canaux droit et gauche ou
    inversement d'une céllule stéréo . Sur un disque stéréo cela ne t'apporteras rien j'en suis convaincu et sur un disque
    mono je ne suis pas sur d'un quelconque avantage .

    Mais comme je te l'es dit précédemment , une céllule mono comme la Denon DL 102 te donneras le maximum sur
    tes disques monos et cablée en deux canaux vu la configuration de son stylet te permettras d'écouter tes vinyls
    stéréos en pseudo mono avec pour avantage d'améliorer la restitution sonore sur des prises de sons stéréos
    brouillonnes ou agréssives cela quelque soit la configuration de tes éléctroniques et hp .

    Voilà j'éspère avoir été un peu plus clair et avoir répondu a tes attentes .

    Bon week end
    Christian

    PS pour le HR , tu vas dans ce groupe et tu deviens membre si tu le veut



    de tes nouvelles pour le HR

    à+
    gilles
  • et trouvé ça aussi:

    Description

    This article is from the Car Audio FAQ, by Ian D. Bjorhovde (ianbjor@mobileaudio.com) with numerous contributions by others.

    5.16 How do I turn a stereo signal into a mono signal [BW]


    Creating a mono signal is often necessary when you are powering a
    subwoofer by bridging the amplifier. Many people do not realize that
    bridging an amplifier does not always provide a mono signal - many
    amplifiers will simply use only one input channel, which means that the
    subwoofer won't be receiving the full signal.

    Some amplifiers have a switch that will allow you to combine the left
    and right channels into a mono signal. Some signal processors and head
    units provide a subwoofer-out channel that can be switched between
    stereo and mono.

    If you don't have this feature on any of your equipment, you will need
    to provide a mono signal to the amplifier. The common thought is to use
    a Y-adapter to "combine" the left and right channels. However, by
    using a Y-adapter, you are actually summing the line voltages and
    directly shorting the left and right channels at the head unit, which
    could cause problems.



    The correct way to create a mono signal is to cut off the ends of the
    RCA cables, combine the signal grounds (the outer shield), and then use
    a 1 kOhm (1/4 watt, 5% tolerance) resistor to each of the center
    conductors. Solder and insulate the resistors so that you don't short
    them prematurely, and then connect the two resistors together. Connect
    the summed signal ground to the shield of the new RCA plug, and the
    summed center conductor to the center pin of the RCA plug.


  • thonon a dit :
    j'ai trouvé ça qui montre une approche totalement différente:








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    #1
    01-24-2009, 10:01 PM

    derekwwww
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    Best way to turn stereo signal into mono?
    ________________________________________
    My bathroom is going to only have one speaker since it is a small room. The speaker I have isnt a dual tweeter speaker with the L and R speaker hook ups to make the single speaker a stereo and take both channels. It is just one speaker from a L and R set. What is the best way to take the stereo signal from the zone output on the receiver and turn it in to a mono signal with just a single RCA instead of a L and R?

    Thanks






    #2
    01-24-2009, 10:16 PM


    highfigh
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    My bathroom is going to only have one speaker since it is a small room. The speaker I have isnt a dual tweeter speaker with the L and R speaker hook ups to make the single speaker a stereo and take both channels. It is just one speaker from a L and R set. What is the best way to take the stereo signal from the zone output on the receiver and turn it in to a mono signal with just a single RCA instead of a L and R?

    Thanks
    It's not as simple as connecting the two + leads to the speaker, unfortunately. The easiest way is to use a separate amp with a Mono switch. You can buy a summing network, but those are usually for line level, not speaker level.



    #3
    01-25-2009, 12:21 AM


    pzaur
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    ________________________________________
    You could just buy a stereo speaker. That might be the simplest and cheapest solution.
    Of course, I'm assuming all wires haven't been run yet.

    -pat
    __________________
    ~~~~~~~~~~~~~~
    Samsung HLR-5067
    Yamaha RX-V663
    Samsung BD-P1500XAA
    Yamaha DV-S5860 Universalish Player
    Sony HTiB HT-DDW740 Subwoofer (SA-WMSP2)
    Aperion Audio 533-T x 2
    Aperion Audio 533-VAC center
    Niles Audio CM6MP surrounds
    The Speaker Company IC-8 outside patio
    Sony HTiB HT-DDW740 Receiver (STR-K740P) - garage

    NASA Pic of the Day

    "Chicago. Where you have a pound of beef with every meal."
    -my brother Chris


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    #4
    01-25-2009, 08:52 AM


    TLS Guy
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    My bathroom is going to only have one speaker since it is a small room. The speaker I have isnt a dual tweeter speaker with the L and R speaker hook ups to make the single speaker a stereo and take both channels. It is just one speaker from a L and R set. What is the best way to take the stereo signal from the zone output on the receiver and turn it in to a mono signal with just a single RCA instead of a L and R?

    Thanks
    That is not a simple problem to solve. You can not combine two speaker channels or the amps will blow right away.

    The suggestion of using an amp with a mono switch would work. You could also use you pre outs if your receiver has them. However if you use a simple Y connector you will have mono through out, since pre outs are not usually buffered. So to use them you would have to build buffer amps for each L & R preout and then sum the output of the buffer amps to mono. Then you could use a powered speaker. You would need an AC outlet to plug the speaker into. You might be able to find a headphone mixer, that would work as your buffer amp.
    __________________
    Marantz DV 9600 Oppo BD-83 Marantz AV 8003 Quad current dumping amps X 7 Direct TV HD 20 HD DVR Carter audio workstation RME Fireface 800 Fujitsu 50XHA40 Front left and right Carter dual transmission line studio monitors MK II. Center Carter coaxial transmission line center speaker Rear Carter NFM-1s Center backs Carter dual transmission line studio monitors MK I. My system: -http://mdcarter.smugmug.com/gallery/...27077317_Pufg7



    #5
    01-25-2009, 10:41 AM

    derekwwww
    Audioholic Join Date: Jan 2005
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    ________________________________________
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks



    #6
    01-25-2009, 12:07 PM


    TLS Guy
    Audioholic Spartan Join Date: Oct 2007
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks
    I will try and find you something later, that could be pressed into service as buffer amps. Behringer had a device that was just the ticket, but it is now discontinued. I have a lot to do, so I will look into it later.
    __________________
    Marantz DV 9600 Oppo BD-83 Marantz AV 8003 Quad current dumping amps X 7 Direct TV HD 20 HD DVR Carter audio workstation RME Fireface 800 Fujitsu 50XHA40 Front left and right Carter dual transmission line studio monitors MK II. Center Carter coaxial transmission line center speaker Rear Carter NFM-1s Center backs Carter dual transmission line studio monitors MK I. My system: -http://mdcarter.smugmug.com/gallery/...27077317_Pufg7



    #7
    01-25-2009, 12:19 PM


    OttoMatic
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks
    You could use any type of cheap little mixer. What's your budget? I was doing something like that with a Peavey mixer, and I think it was about $80. If you're interested, I might be interested in selling it; I was using it exactly as you would to solve your problem and it worked fine.

    Or, if you have need for parametric EQ, you could get a Behringer DCX2496, use two inputs for the issue you're trying to solve here, and the other remaining input to EQ your sub.
    __________________
    -- Otto



    #8
    01-25-2009, 02:25 PM


    Seth=L
    Audioholic Overlord Join Date: Sep 2006
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    ________________________________________
    It will be the easiest to convert to mono while it's still line level. Many old receivers and integrated amplifiers had this function built in. Hit up garage sales, flea markets, pawn shops, and thrift stores. You may find something as inexpensive as $10-20 that will serve it's purpose to power one lone speaker.
    __________________




    #9
    01-25-2009, 02:26 PM


    Seth=L
    Audioholic Overlord Join Date: Sep 2006
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks
    I guess I didn't read the whole thread. Best of luck.
    __________________




    #10
    01-25-2009, 03:38 PM


    highfigh
    Audioholic Spartan Join Date: Sep 2008
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks
    The mono switch is often for FM radio only, unless it's really old. Can't you sell the speaker and buy a 2 channel model?




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  • j'ai trouvé ça qui montre une approche totalement différente:








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    #1
    01-24-2009, 10:01 PM

    derekwwww
    Audioholic Join Date: Jan 2005
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    Best way to turn stereo signal into mono?
    ________________________________________
    My bathroom is going to only have one speaker since it is a small room. The speaker I have isnt a dual tweeter speaker with the L and R speaker hook ups to make the single speaker a stereo and take both channels. It is just one speaker from a L and R set. What is the best way to take the stereo signal from the zone output on the receiver and turn it in to a mono signal with just a single RCA instead of a L and R?

    Thanks






    #2
    01-24-2009, 10:16 PM


    highfigh
    Audioholic Spartan Join Date: Sep 2008
    Location: Milwaukee area
    Posts: 5,128
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    My bathroom is going to only have one speaker since it is a small room. The speaker I have isnt a dual tweeter speaker with the L and R speaker hook ups to make the single speaker a stereo and take both channels. It is just one speaker from a L and R set. What is the best way to take the stereo signal from the zone output on the receiver and turn it in to a mono signal with just a single RCA instead of a L and R?

    Thanks
    It's not as simple as connecting the two + leads to the speaker, unfortunately. The easiest way is to use a separate amp with a Mono switch. You can buy a summing network, but those are usually for line level, not speaker level.



    #3
    01-25-2009, 12:21 AM


    pzaur
    Audioholic Samurai Join Date: Feb 2006
    Location: Phoenix
    Posts: 2,097
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    Thanked 561 Times in 434 Posts




    ________________________________________
    You could just buy a stereo speaker. That might be the simplest and cheapest solution.
    Of course, I'm assuming all wires haven't been run yet.

    -pat
    __________________
    ~~~~~~~~~~~~~~
    Samsung HLR-5067
    Yamaha RX-V663
    Samsung BD-P1500XAA
    Yamaha DV-S5860 Universalish Player
    Sony HTiB HT-DDW740 Subwoofer (SA-WMSP2)
    Aperion Audio 533-T x 2
    Aperion Audio 533-VAC center
    Niles Audio CM6MP surrounds
    The Speaker Company IC-8 outside patio
    Sony HTiB HT-DDW740 Receiver (STR-K740P) - garage

    NASA Pic of the Day

    "Chicago. Where you have a pound of beef with every meal."
    -my brother Chris


    The Following 2 Users Say Thank You to pzaur For This Useful Post:
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    #4
    01-25-2009, 08:52 AM


    TLS Guy
    Audioholic Spartan Join Date: Oct 2007
    Location: Benedict MN
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    My bathroom is going to only have one speaker since it is a small room. The speaker I have isnt a dual tweeter speaker with the L and R speaker hook ups to make the single speaker a stereo and take both channels. It is just one speaker from a L and R set. What is the best way to take the stereo signal from the zone output on the receiver and turn it in to a mono signal with just a single RCA instead of a L and R?

    Thanks
    That is not a simple problem to solve. You can not combine two speaker channels or the amps will blow right away.

    The suggestion of using an amp with a mono switch would work. You could also use you pre outs if your receiver has them. However if you use a simple Y connector you will have mono through out, since pre outs are not usually buffered. So to use them you would have to build buffer amps for each L & R preout and then sum the output of the buffer amps to mono. Then you could use a powered speaker. You would need an AC outlet to plug the speaker into. You might be able to find a headphone mixer, that would work as your buffer amp.
    __________________
    Marantz DV 9600 Oppo BD-83 Marantz AV 8003 Quad current dumping amps X 7 Direct TV HD 20 HD DVR Carter audio workstation RME Fireface 800 Fujitsu 50XHA40 Front left and right Carter dual transmission line studio monitors MK II. Center Carter coaxial transmission line center speaker Rear Carter NFM-1s Center backs Carter dual transmission line studio monitors MK I. My system: -http://mdcarter.smugmug.com/gallery/...27077317_Pufg7



    #5
    01-25-2009, 10:41 AM

    derekwwww
    Audioholic Join Date: Jan 2005
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    ________________________________________
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks



    #6
    01-25-2009, 12:07 PM


    TLS Guy
    Audioholic Spartan Join Date: Oct 2007
    Location: Benedict MN
    Posts: 6,699
    Thanks: 597
    Thanked 2,513 Times in 1,818 Posts




    ________________________________________
    Quote:
    Originally Posted by derekwwww
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks
    I will try and find you something later, that could be pressed into service as buffer amps. Behringer had a device that was just the ticket, but it is now discontinued. I have a lot to do, so I will look into it later.
    __________________
    Marantz DV 9600 Oppo BD-83 Marantz AV 8003 Quad current dumping amps X 7 Direct TV HD 20 HD DVR Carter audio workstation RME Fireface 800 Fujitsu 50XHA40 Front left and right Carter dual transmission line studio monitors MK II. Center Carter coaxial transmission line center speaker Rear Carter NFM-1s Center backs Carter dual transmission line studio monitors MK I. My system: -http://mdcarter.smugmug.com/gallery/...27077317_Pufg7



    #7
    01-25-2009, 12:19 PM


    OttoMatic
    Senior Audioholic Join Date: Jul 2007
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    ________________________________________
    Quote:
    Originally Posted by derekwwww
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks
    You could use any type of cheap little mixer. What's your budget? I was doing something like that with a Peavey mixer, and I think it was about $80. If you're interested, I might be interested in selling it; I was using it exactly as you would to solve your problem and it worked fine.

    Or, if you have need for parametric EQ, you could get a Behringer DCX2496, use two inputs for the issue you're trying to solve here, and the other remaining input to EQ your sub.
    __________________
    -- Otto



    #8
    01-25-2009, 02:25 PM


    Seth=L
    Audioholic Overlord Join Date: Sep 2006
    Posts: 11,674
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    ________________________________________
    It will be the easiest to convert to mono while it's still line level. Many old receivers and integrated amplifiers had this function built in. Hit up garage sales, flea markets, pawn shops, and thrift stores. You may find something as inexpensive as $10-20 that will serve it's purpose to power one lone speaker.
    __________________




    #9
    01-25-2009, 02:26 PM


    Seth=L
    Audioholic Overlord Join Date: Sep 2006
    Posts: 11,674
    Thanks: 1,170
    Thanked 1,576 Times in 1,232 Posts




    ________________________________________
    Quote:
    Originally Posted by derekwwww
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks
    I guess I didn't read the whole thread. Best of luck.
    __________________




    #10
    01-25-2009, 03:38 PM


    highfigh
    Audioholic Spartan Join Date: Sep 2008
    Location: Milwaukee area
    Posts: 5,128
    Thanks: 14
    Thanked 1,333 Times in 1,070 Posts




    ________________________________________
    Quote:
    Originally Posted by derekwwww
    I would prefer to turn the RCA signal in to a mono signal as I have a mono amp to run the speaker. If I cant find some way to do that then I guess I will find a vintage receiver with the mono switch.

    Thanks
    The mono switch is often for FM radio only, unless it's really old. Can't you sell the speaker and buy a 2 channel model?




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  • Volontiers,

    je vis à Vanves dans les hauts de seine 92 et travaille à Paris 17
    pour essayer une synthèse de ma question:

    une source stéréo fournit un signal g et un signal d qui sont transmis jusqu'aux enceintes
    pour qu'une écoute mono soit possible c'est à dire la totalité du signal (g+d)dans une seule enceinte il faut bien que d'une manière ou d'une autre les signaux g et d soient réunis.
    la question est donc: comment réunir les deux canaux?
    est ce la cellule mono qui crée cette réunion sur un seul canal qui va dans le pré ampli puis sur un seul canal de l'ampli?

    j'attends de tes nouvelles pour le HR

    à+
    gilles


  • thonon a dit :
    j'ajoute ceci
    ça ne doit fonctionner que sur des des disques mono à moins que la cellule mono fusionne les deux canaux en un ?

    a +
    Gilles

    Toujours pas compris mais ce que je peut te donner en exemple c'est le cas de la céllule DenonDL102. , cette céllule cablée en deux canaux qui seront toujours monos , outre le fait qi'elle puisse te permettre
    d'écouter tes vinyls monos est capable de lire sans risque de les abimer tes disques stéréos .
    J' avais d'ailleurs mis en évidence sur mon système que des disques des années 70 mal enregistrés passaient
    finalement très très bien comme ça car il étaient libérés de toutes crispations et autre sons brouillons et criards .

    Sinon ici meme je ne sais pas si tu es au courant , il y a une section HR , ce serait bien que tu vienne nous
    rejoindre . Tu pourras y décrire ton système , parler de tes éxpériences ainsi que du style de tes écoutes .

    Dans quelle région est tu ?

    A++ Christian
  • je ne me plaint pas mais un certain fétichisme me poussait vers les VOTT.
    604 et VOTT, y a t il une grande différence selon toi?
    Pour la mono, tu as l'air sûr de toi mais cela n'est il pas applicable qu'aux disques mono?
    Je n'en ai que quelques uns
    qu'es ce que ça donne sur des disques stéréo?
    Merci de ton attention Heureusement car des 604 dans les caisses ad hoc c'est déjà quelque chose . Les Vot c'est quand meme un autre
    environnement sonore ne serait ce que de par la nature de la composition , dans le grave 416 ou 515 puis le nombre de
    voies , quelle compression dans le médium , nature du pavillon , sectoriel ou multi , tweeter ou non .

    Pour ma part je suis et au toujours été en deux voies , question de naturel pour moi avec des 416 B dans le grave et des
    228 dans le médium/aigu couplés a des pavillons 360/90 c'est la meilleure composition que je n'est jamais eut .


    qu'es ce que ça donne sur des disques stéréo?<</b>
    A+ Christian
  • j'ajoute ceci
    ça ne doit fonctionner que sur des des disques mono à moins que la cellule mono fusionne les deux canaux en un ?

    a +
    Gilles
  • je ne me plaint pas mais un certain fétichisme me poussait vers les VOTT.
    604 et VOTT, y a t il une grande différence selon toi?
    Pour la mono, tu as l'air sûr de toi mais cela n'est il pas applicable qu'aux disques mono?
    Je n'en ai que quelques uns
    qu'es ce que ça donne sur des disques stéréo?
    Merci de ton attention
  • Depuis que j'écoute des vinyls en mono , j'ai et je ne suis pas le seul pratiqué de la façon suivante .

    Mon ampli et mon préampli sont stéréo . Quand j'écoute sur cette association , ma céllule et mon bras étant monos
    je n'est q'un seul canal et donc une seule enceinte qui sont alimentés .

    Je n'est à ce jour eut aucun problème de fonctionnement pour le canal non alimenté .Par contre je ne me lancerai pas
    dans le shintage des deux canaux en un à partir d'une céllule stéréo et d'ailleurs pour moi cela n'a aucun sens .

    Tout comme contrairement a Jean HIRAGA de je le cite " relier les entrées G + D d'un amplificateur pour bénéficier d'une écoute en monaural. On peut aussi relier les entrées non pas directement
    mais à travers une résistance (valeur assez grande, par exemple 100 kOhms, elle dépend en fait de l'impédance d'entrée), ce qui^produit un mélange partiel des canaux."

    Ton idée d'utiliser une seule de tes 604 ( tu es un homme heureux quand meme , magnifiques transducteurs ) pour une
    écoute mono est idéale .à la condition éxpresse que tu dispose d'une céllule mono sinon cela ne servirait à rien .

    Si tu as beaucoup de vinyls monos , je t'engage fortement à acquérir une céllule mono si tu n'en es pas possésseur .

    Pour les cd moi je ne voit aucun intérét de pratiquer une écoute mono mais ce n'est que mon avis . Je qu'au Japon
    Mr SAKUMA grand amateur de l'écoute monophonique utilise lui pour les cd un transfo en sortie mais techniquement
    je ne saurai te dire le comment .

    A+ Christian
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