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| 01-06-08 / 22:17 : Behringer Truth B2031 : boomer stops (cjed) |
| Yesterday one of my Behringer B-Truth 2031 monitors woofer stopped sundendly, leaving only the tweeter on, and worked again for a while (a few seconds) when powering off/in again the whole unit. I finally found a way to solve the problem : by setting the low mute and high mute switchs to on before powering on the unit (and switching these off after having pushed the main monitor power button), the boomer worked and didn't stop again. Before that I used the power mode to switch the whole speakers off (power mode set to off) before pushing the main power button : without that the boomer produces a very loud peak sound at start - in fact at max power ! - and so triggers the overload protection -, even worse than with a guitar amp. Below the mute switch is printed for service use, so I thought it was intended to. But there isn't any mention of that in the user manual. I also set the speakers off before powering off the unit (in case of I forgot the next time I power them). I don't know if using too much frequently the power mode switch caused this problem in the integrated filter, but the fix seems to work, now I use the two separate mute switchs (and the power mode has to bet to on when powering the unit through the main button). As before finding the fix I thought the unit won't work again (thought about a wire problem in the boomer or in the filter) I made a look again at the Yamaha NS-80M, and found they look very attractive : 75W/25W (so less than the Berhinger but still very comfortable), better details in bass register (even lower frequency range, down to 41Hz), cool design and lightning logo (and probably no loud/overload sound at start), and finally only 60W power consumption vs 200W per unit for the B2031 ! The NS80M can now be found as low as 229 euros each (189 euros for one B2031A). And with Yamaha the quality isn't a problem (see the famous NS10M). |
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Apparently, as I thought it was a failure in the power supply, and I could have asked a replacement (5 years ago however now), despite the dealer having said it was normal loud sound. |
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