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New Preamplifier?
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<blockquote data-quote="thylantyr" data-source="post: 3337621" data-attributes="member: 560358"><p>Pure preamps are simple in design but the markups are huge with pretty knobs, switches</p><p></p><p>and case.</p><p></p><p>I would focus on speaker replacement and get higher powered amplification depending</p><p></p><p>on the speaker sensitivity, etc. Perhaps even biamp as a minimum. I think the</p><p></p><p>speakers are your weakest link, then amplifier, the rest is fine and does the job well.</p><p></p><p>Since you have access to proaudio amps, you might want to do a test. See if you can</p><p></p><p>score a PLX for testing and bridge the amp and drive one B&amp;W cabinet to compare how</p><p></p><p>the speaker is being driven vs. the Rotel amp. You want to rule out the amplifier as a</p><p></p><p>variable meaning you want to ensure the speakers are not be starved for power.</p><p></p><p>A bridged PLX will probably have 3x to 4x more clipping headroom than the Rotel which</p><p></p><p>should open up the sound a bit.</p><p></p><p>For now ignore amp anolomies like hiss, etc as you can deal with this later, you just</p><p></p><p>want to test on variable right now. But if you did migrate to a PLX caliber amp for</p><p></p><p>home use, a Parasound Halo is nice because it has balanced outputs with 8 volt signals</p><p></p><p>that would mate excellent to proamps vs. the 1v preouts found on Rotel gear. You can</p><p></p><p>reduce proamp gain which in turn reduces induced hiss when you have a higher output</p><p></p><p>preamp signal.</p><p></p><p>Since you are in the pro audio field, I still wonder why you are messing with ordinary</p><p></p><p>home audio gear when there is better for less money. Use PLX3402's are cheap now,</p><p></p><p>$500 - $700 each, two for mains, each in bridged mode is pretty sick and very clean sounding,</p><p></p><p>If for some reason, the speakers sound better with that test, then keep the speakers</p><p></p><p>and do the higher power amp upgrade. If you think the speakers are not offereing anything</p><p></p><p>more to the party, then the speakers need replacement.</p><p></p><p>You can always enter DIY speakers but that is a dfferent can of worms to deal with.</p><p></p><p>It will take time and money and experimentation to find your sound.</p></blockquote><p></p>
[QUOTE="thylantyr, post: 3337621, member: 560358"] Pure preamps are simple in design but the markups are huge with pretty knobs, switches and case. I would focus on speaker replacement and get higher powered amplification depending on the speaker sensitivity, etc. Perhaps even biamp as a minimum. I think the speakers are your weakest link, then amplifier, the rest is fine and does the job well. Since you have access to proaudio amps, you might want to do a test. See if you can score a PLX for testing and bridge the amp and drive one B&W cabinet to compare how the speaker is being driven vs. the Rotel amp. You want to rule out the amplifier as a variable meaning you want to ensure the speakers are not be starved for power. A bridged PLX will probably have 3x to 4x more clipping headroom than the Rotel which should open up the sound a bit. For now ignore amp anolomies like hiss, etc as you can deal with this later, you just want to test on variable right now. But if you did migrate to a PLX caliber amp for home use, a Parasound Halo is nice because it has balanced outputs with 8 volt signals that would mate excellent to proamps vs. the 1v preouts found on Rotel gear. You can reduce proamp gain which in turn reduces induced hiss when you have a higher output preamp signal. Since you are in the pro audio field, I still wonder why you are messing with ordinary home audio gear when there is better for less money. Use PLX3402's are cheap now, $500 - $700 each, two for mains, each in bridged mode is pretty sick and very clean sounding, If for some reason, the speakers sound better with that test, then keep the speakers and do the higher power amp upgrade. If you think the speakers are not offereing anything more to the party, then the speakers need replacement. You can always enter DIY speakers but that is a dfferent can of worms to deal with. It will take time and money and experimentation to find your sound. [/QUOTE]
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