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Post by strindl on Nov 27, 2009 11:41:42 GMT -5
Honestly, the center your using is more than up to the task at hand, the 6.3 isnt going to be a huge upgrade, if it even is at all(It could even be a downgrade). Even the XPA-5 isnt going to be a huge upgrade, maybe 2 db. of dynamic headroom in reality at 4 ohms.........you have alot of mix n match components..........if your just lookin to spend some cash Id say do the XPA-5 with those maggies....... Have you ever listened to an Audio Source amp? I haven't heard the specific one he has, but I have heard others. They did not impress me. The Emotiva amps are much better.
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Post by Nemesis.ie on Nov 27, 2009 12:14:34 GMT -5
I have 3 x 6.3s, but I voted for the XPA-5 in this case.
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ntrain42
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Smoke me a kipper, I'll be home before breakfast!
Posts: 2,969
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Post by ntrain42 on Nov 27, 2009 12:34:35 GMT -5
Honestly, the center your using is more than up to the task at hand, the 6.3 isnt going to be a huge upgrade, if it even is at all(It could even be a downgrade). Even the XPA-5 isnt going to be a huge upgrade, maybe 2 db. of dynamic headroom in reality at 4 ohms.........you have alot of mix n match components..........if your just lookin to spend some cash Id say do the XPA-5 with those maggies....... Have you ever listened to an Audio Source amp? I haven't heard the specific one he has, but I have heard others. They did not impress me. The Emotiva amps are much better. Better is subjective at best. Honestly a watt is a watt plain and simple. If SN and channel speration and THD are within spec and of good standard(which means it should be inaudible), then it all comes down to reactive power under load. This is where a speakers impedance curve over the frequency range in combination with the amps own ability and power output with a changing impedance curves makes a difference in how systems are "voiced" and sound overall. For example, take a set of speakers with with nominal resting 8ohm average impedance curve being driven to about 50 watts rms on average, but around say 60-100hz that impedance drops to say around 4ohms, now using an XPA-2 which doubles its output at 4ohms on that same set of speakers will have 100 watts rms at that frequency range. Now take the same set of speakers drive them to 50 watts rms again, and say use an XPA-5 instead. At that same frequency range of 60-100hz it may only get 65-70 watts rms since the XPA-5 doesnt double its power down. So the XPA-2's bass sounds punchier. But in essense it isnt, its just driving more power to the impedance curve of the speakers. Things like this can be equalized out with a good pre processor to compensate(within the given clean RMS range of the amp of course) for the lack of ability for the amp to double its own power. Same for just the opposite if your getting say too much bass from the XPA-2 and need to reduce the bass a bit due to the same reactive ability of the amp. Thats why I am a big proponent of having a good independant xover/eq function built into any system I design and install. You gotta know your components and their abilities and how to compensate in any strength or shortcoming. In short I could without a doubt make that Audio Source amp sound identical to the point where its almost 100% impossible to tell the difference from an XPA amp with a good solid eq system or any amp for that matter as long as its of compentent design and drivin within its unclipped capabilities.
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