07-22-2021, 05:46 PM
Tout à fait Tusoli,
Juste une petite correction, un disjoncteur ( magnéto thermique ) ne déclenchera pas en cas de fuite de courant. Un disjoncteur protège contre les surcharges et les courts-circuits. C'est l'interrupteur différentiel qui déclenche en cas de fuite de courant ou le disjoncteur différentiel mais là, ce n'est plus le même prix.
Le mieux est d'utiliser un transfo symétriseur pour être tranquille avec cette histoire de phase secteur.
Absolute Phase
Musical notes are heard through the ear’s response to waves of alternating rise and fall of air pressure. Musical transients are almost exclusively positive: that is, the initial effect is a rise in pressure. The ear is capable of distinguishing these positive transients from the musically unnatural alternative of a negative transient (an initial fall in air pressure). In terms of your stereo system, these transients are created by your loudspeakers. If the speakers respond to musical transients by first moving out, they are creating a rise in pressure, and the system is said to be "phase correct". If they respond by moving in, they create a fall in pressure and the system is said to be phase inverting. Each component in the stereo system either preserves the phase of the incoming signal, and is said to be phase correct or inverts the phase and is said to be phase inverting. It is unimportant whether an individual component is phase correct or phase inverting, as long as the system as a whole is phase correct. This will be the case if the number of phase inversions is even (or zero).
The PV14L is phase inverting. If your system has an odd number of inversions, (for example, if the PV14L is the only phase inverting unit in the chain) then you must add one phase inversion. This is conveniently done by reversing the positive and negative connections to your speakers (be sure to reverse both channels).
If you are not sure about the phase of every piece in your system, you can establish correct absolute phase by careful listening. When the system is in correct phase, transients will be noticeably cleaner and more sharply defined. The effect is especially apparent on plucked string sounds. A final warning - not all recordings are phase correct (including some "audiophile" recordings), so listen to several before concluding your investigation of absolute phase
Pensez-vous que, si j'actionne la fonction phase de mon convertisseur, je ne serais plus obligé d'inverser les câbles de mes enceintes?
![[Image: IMG-20210722-165258.jpg]](https://i.ibb.co/f8cVKC0/IMG-20210722-165258.jpg)
Juste une petite correction, un disjoncteur ( magnéto thermique ) ne déclenchera pas en cas de fuite de courant. Un disjoncteur protège contre les surcharges et les courts-circuits. C'est l'interrupteur différentiel qui déclenche en cas de fuite de courant ou le disjoncteur différentiel mais là, ce n'est plus le même prix.
Le mieux est d'utiliser un transfo symétriseur pour être tranquille avec cette histoire de phase secteur.
Absolute Phase
Musical notes are heard through the ear’s response to waves of alternating rise and fall of air pressure. Musical transients are almost exclusively positive: that is, the initial effect is a rise in pressure. The ear is capable of distinguishing these positive transients from the musically unnatural alternative of a negative transient (an initial fall in air pressure). In terms of your stereo system, these transients are created by your loudspeakers. If the speakers respond to musical transients by first moving out, they are creating a rise in pressure, and the system is said to be "phase correct". If they respond by moving in, they create a fall in pressure and the system is said to be phase inverting. Each component in the stereo system either preserves the phase of the incoming signal, and is said to be phase correct or inverts the phase and is said to be phase inverting. It is unimportant whether an individual component is phase correct or phase inverting, as long as the system as a whole is phase correct. This will be the case if the number of phase inversions is even (or zero).
The PV14L is phase inverting. If your system has an odd number of inversions, (for example, if the PV14L is the only phase inverting unit in the chain) then you must add one phase inversion. This is conveniently done by reversing the positive and negative connections to your speakers (be sure to reverse both channels).
If you are not sure about the phase of every piece in your system, you can establish correct absolute phase by careful listening. When the system is in correct phase, transients will be noticeably cleaner and more sharply defined. The effect is especially apparent on plucked string sounds. A final warning - not all recordings are phase correct (including some "audiophile" recordings), so listen to several before concluding your investigation of absolute phase
Pensez-vous que, si j'actionne la fonction phase de mon convertisseur, je ne serais plus obligé d'inverser les câbles de mes enceintes?
Système audio 1: Alim shanti, USBridge sous Volumio, interface Matrix Spdif2, cable AES "lamouette", dac SFD 2.2, préampli CJ PV-14L et ampli CJ LP70S, JMR Abscisse
Système audio 2: USBridge, AudioGd R2R2, préampli ARC SP16L, Pieraudio MS 680, Inselklang
Système audio 2: USBridge, AudioGd R2R2, préampli ARC SP16L, Pieraudio MS 680, Inselklang