Crown XTi Series Power Amplifiers

See the Crown XTi power amplifiers in action. This video was taken at the PSSL.com offices with an in-depth demonstration by Brian Chan from Sound Marketing West.

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Music

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• Crown
• XTi
• Xti1000
• Xti2000
• XTi4000
• power
• amplifier
• amp
• Xti-1000
• XTi-2000
• XTi-4000
• dsp
• speakers
• sound
• pro
• audio
• music
• dj

[djrolando83]

please help how good is the Crown-XLS-5000-Power-Amplifier thanks really appreciate ur help



[jamesduty92]

@RMIND14 i know u can set 2 different crossover settings, but not quite sure on the equalizer it self. i think it is possible

[jamesduty92]

@pornogalactic

thats going into a whole different section

now i don't really play with all the dampening factors and so forth,

i just know that power, ohms, and speaker wirings with amps and that is usually what works, i do know how the circuits inside work, with the power coil and capacitors, but other then that,

i have never had an issue with an amplifier unless im underpowering and i always now that will happen before i do it.

Regards for the input and information tho.

[pornogalactic]

@jamesduty92 The minimum "ohm rating" of an amp should reflect the nominal load impedance where the most power possible can be "drawn" from the amp, keeping distortion, damping factor, efficiency, power consumption and heat buildup at acceptable levels, given the device's intended application.

[pornogalactic]

@jamesduty92 Once the amp begins driving lower impedances, however, and it's output impedance becomes significant relative to that of the load, it's voltage drop will too become significant relative to the voltage across the load. So while ideally halving load impedance should double current, (and therefore power), that the load sees, at a certain point it merely increases distortion significantly, and power only slightly. At this point efficiency is greatly reduced as well.

[pornogalactic]

@jamesduty92 The trade off for this decrease in distortion is a decrease in power to your speakers. In an ideal amp/ speaker circuit where the speaker is the only part of the circuit with resistance, (no voltage sag possible; D factor=∞), the output power of the amp will halve when the load impedance is doubled (ohm's law). Amps operate much like this when powering higher impedance loads because their impedance is negligible relative to that of their load.

[pornogalactic]

@jamesduty92 (Another, related, issue with driving lower impedance loads is reduced damping factor.) The range of impedances most amps are rated for is basically the range where you will be able to send the most amount of power possible through your speakers, while maintaining an acceptable amount of distortion caused by the amp. The higher the impedance of the load, the lower the distortion (though distortion is usually (and ideally should be) negligible above the minimum rated impedance.)

[pornogalactic]

@jamesduty92 If heat builds up inside any part of the amp faster than it can be dissipated for an extended period of time, the amp will fail. But there will usually be other problems with the amp caused by driving such a low impedance load, which arise well before the amp actually fails. One is that the voltage across the speakers will sag significantly, causing high distortion. Distortion plays a key role in how reputable amplifier companies assign power and minimum nominal impedance ratings.

[pornogalactic]

@jamesduty92 Amplifiers are rated to have the ability to power down to a minimum "ohm rating" (I.E. nominal impedance) for a few different reasons, most of which are due to the fact that lower impedance external loads allow more current through the output circuit(s) of the amp; it's simply ohm's law. Because all amps (and indeed all non-superconducting circuits) have an internal resistance (though hopefully very low), power is "burned" inside the amp, which creates heat.

[ghostfacekillah911]

im thinking of getting a xti 1000 and a 2000