|   LE AMP at 10amps each how can your house wiring handle 3? | Pedro
Jun 5, 2001 9:42 AM | | From what I read on the nOrh site each amp pulls about 10 amps of current. What I want to know is if normal house wiring circuits are anywhere from 15 to 30 amps each how do you keep all of your equipment running without triping the breaker? |
| re: LE AMP at 10amps each how can your house wiring handle 3? | WildWest
Jun 5, 2001 3:09 PM | | How do you keep it running? Well you pick up the phone book and call your local licensed electrical contractor and get some deticated 20 amp 120 volt circuits installed. Your typical wall outlets share many other openings and it can range anywhere from 15 amps to 20 amps at 120 volts. (30 amp branch circuits for outlets and lighting in residential use are a violation of the National Electric Code. If you have fuses on outlet circuits rated at 30 amps ummmmm you better change em back to 15 or 20 amp whichever the wire connected allows.) Now seeing how you could have other loads on the circuits with you nice equipment you could be having problems. You should never connect anything that takes more than 50% of the branch circuits capacity at one outlet. So 3 X 10amps = 30 amps = overload. Heck evern just 2 at 10 amps = overload. You need an electrician. |
| re: LE AMP at 10amps each how can your house wiring handle 3? | mbarnes
Jun 6, 2001 2:26 AM | | Le Amp uses the TDA7294 chip. This is a MOS chip that can produce up to 10 amps. The maximum rated output of the chip is 180 watts at four ohms.
The transformer is a 400 VA transformer. We have measured peaks of 250 watts into 8 ohms and 400 watts into 4 ohms. During our testing, the amp was still not clipping and not producing distortion.
Most people rarely drive their amplifiers very hard. The TDA 7294 is a very efficient amplifier so it will use less current for a given power output than most amplifiers. The 10 AMP rating is the maximum output that the chip itself can produce.
A class A amp would draw the same power at all times. This amplifier is very efficient and would draw very little power operating under normal listening conditions. |
| re: LE AMP at 10amps each how can your house wiring handle 3? | OkRon
Jun 5, 2001 4:31 PM | | The statement is misleading. I corresponded with MBarnes several times and the bottom line is the amps are very efficient and the power supply is built to take up to 10 amps but in reality you are not likely to use more than 2 amps. |
| re: LE AMP at 10amps each how can your house wiring handle 3? | WildWest
Jun 5, 2001 7:36 PM | | Yes if that is the case and you are not in reality pulling 10 amps per unit then you prolly are fine. A typical rule of thumb is everything is overrated on the nameplate. Things rarely draw what they say it does. I found the best way to really know what you have is to apply the loads as needed, turn on any other related circuit "typical use" devices and then check at the circuit breaker with an A.C. amp meter and volt meter to see what is happening to the circuit. You don't want to load it up to much believe me. It can and often does in time, really wear on your structures circuit and cause a breakdown or a lower voltage problem that you REALLY don't want. |
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