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Junior Varsity
Behringer iNUKE NU6000 amplifier
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<blockquote data-quote="John Roberts" data-source="post: 101052" data-attributes="member: 126"><p>Re: Behringer iNUKE NU6000 amplifier</p><p></p><p></p><p></p><p>Don't confuse personal anecdote for best or even good practice. Amp designers try to design amps that will satisfy the majority of customers and sell well. Larger rated nominal power figures for a given price will always appeal to value customers, and any customer spending their own money and on a budget. </p><p></p><p>Distortion while arbitrarily small in good designs will generally double between 8 ohms and 4 ohms, and double again at 2. This may not be apparent from reading data sheets since distortion is generally specified +N (plus noise) and noise can conceal distortion in better designs. </p><p></p><p>Thermal headroom or duty cycle capacity will drop linearly with impedance. Even if the amps do not thermal out in normal use, MTBF (mean time between failure) generally drops in half for every 10'C increase in operating temperature. </p><p></p><p>Sometimes loading an amp down to marginal worst case loading, can allow subtle artifact to occur transiently. These are generally not correlated with the marginal loading, but they are caused by it. </p><p></p><p>The customer is always right.... even when... </p><p></p><p>JR</p><p></p><p>PS: Serious amp designers design their amps to not blow up and work well, despite how customers apply them. It would be bad marketing to argue too publicly against operating them at 2 ohms. BUT I CAN..... because I have nothing to lose.</p></blockquote><p></p>
[QUOTE="John Roberts, post: 101052, member: 126"] Re: Behringer iNUKE NU6000 amplifier Don't confuse personal anecdote for best or even good practice. Amp designers try to design amps that will satisfy the majority of customers and sell well. Larger rated nominal power figures for a given price will always appeal to value customers, and any customer spending their own money and on a budget. Distortion while arbitrarily small in good designs will generally double between 8 ohms and 4 ohms, and double again at 2. This may not be apparent from reading data sheets since distortion is generally specified +N (plus noise) and noise can conceal distortion in better designs. Thermal headroom or duty cycle capacity will drop linearly with impedance. Even if the amps do not thermal out in normal use, MTBF (mean time between failure) generally drops in half for every 10'C increase in operating temperature. Sometimes loading an amp down to marginal worst case loading, can allow subtle artifact to occur transiently. These are generally not correlated with the marginal loading, but they are caused by it. The customer is always right.... even when... JR PS: Serious amp designers design their amps to not blow up and work well, despite how customers apply them. It would be bad marketing to argue too publicly against operating them at 2 ohms. BUT I CAN..... because I have nothing to lose. [/QUOTE]
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Behringer iNUKE NU6000 amplifier
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