Marcokeun a écrit :
moué des techos come moi on en fait plus... Quand tu penses que t'as attendu 2 mois pour le meme résultat, et encore moi je garantis 2 mois de fonctionnement
krrr en tout cas, il fonctionne toujours!
Je viens de recevoir la réponse au mail que j'avais envoyé à Tech 21 :
Citation:
The first problem you described sounds like it was caused by "dirty" Effect Send and Return jacks... even if you don't use them, the signal always passes through. So if the contacts oxidize (possibly from a humid environment), there will be an interruption of the signal.
You can check whether this is the cause of your volume loss by running a short guitar cable from the Effect Send right back into the Effect Return (a sort of "jumper") to open the jacks. If the amp sounds fine that way you'll know you only need to spray a little bit of DeOxit or similar electronic component contact cleaner in the jacks and then jam a 1/4" cable plug in and out a few times. That usually does the trick.
The amp is designed to run with a minimum load of 8 ohms (which is the rating of our internal speaker), so you were correct not to go lower (4 ohms), and there's never a problem going higher (16 ohms), but that would knock your power down by approximately 1/3, and the amp will deliver 40 watts instead of 60. There shouldn't be a very noticeable difference in volume, but there will be less headroom (the ability to stay "clean" as you turn up the Level), and the amp may begin to clip (distort). I'm thinking, if you really heard a significant difference in volume, and the contacts in the effect loop jacks required cleaning, perhaps it would a good idea to clean the Ext. Speaker and Headphone Out jacks as well, since they probably all developed the same oxidation on their contacts.
Apparemment j'avais compris à l'envers pour l'histoire d'impédance. Je ne peux pas mettre en dessous de 8 ohms mais pas de problème, à part une perte de puissance, si je connecte un baffle d'une impédance plus élevée.