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#1
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Basic deck / integrated amplifier topology questions
Hiya,
Do any reasonably affordable head units having integrated amps provide for the possibility of using the internal amp as part of a multi-band setup? E.g. providing both preamp out and power amp input jacks (a.k.a. send/return) suitable for patching in an external crossover? I'm going along as technical consultant in a couple of days when a young friend goes shopping for a system for his truck. My fundamentals are good, but I'm a little out of date on current product offerings. For example, I just discovered that 12AX7's and spring reverbs are hardly never used no more. ;-) We're an hour away from a town that's even big enough to have multiple vendors, and I'm not counting on finding expert sales assistance. Trying to keep costs reasonable (total, CDN$500 tops). Topology will be a basic biamped arrangement with a pair of speakers in the doors for mid/highs and a sub behind the seat. I have a decent little 2-way crossover and a Sony power amp I'm not using anymore, to get him started on driving the sub. I just thought it would be nice if we didn't have to go the route of ampless head unit + seperate amp for mid/highs. One less piece of gear to mount and maybe a bit cheaper that way. Plus we don't exactly need something to drown out passing jetliners, just overcome (gravel) road noise out here in the boonies. But maybe the idea of mainstream consumer deck having an external loop is a pipe dream? TIA, -=s |
#2
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Basic deck / integrated amplifier topology questions
you sound like a guitar player.... 12AX7/AU7/AT7 s are still being used
in many circuits. Digital modeling hasn't completely revolutionized things. There are still (a lot of) traditionalists who wouldn't trade their tubes/analog circiuts nad accusonics reverbs for the world. Ive never seen an effects loop on a head unit. Usually (but not always) if anything theres line level inputs for a second source. But I am not up on the latest either... Garrett Scott Willing wrote: Hiya, Do any reasonably affordable head units having integrated amps provide for the possibility of using the internal amp as part of a multi-band setup? E.g. providing both preamp out and power amp input jacks (a.k.a. send/return) suitable for patching in an external crossover? I'm going along as technical consultant in a couple of days when a young friend goes shopping for a system for his truck. My fundamentals are good, but I'm a little out of date on current product offerings. For example, I just discovered that 12AX7's and spring reverbs are hardly never used no more. ;-) We're an hour away from a town that's even big enough to have multiple vendors, and I'm not counting on finding expert sales assistance. Trying to keep costs reasonable (total, CDN$500 tops). Topology will be a basic biamped arrangement with a pair of speakers in the doors for mid/highs and a sub behind the seat. I have a decent little 2-way crossover and a Sony power amp I'm not using anymore, to get him started on driving the sub. I just thought it would be nice if we didn't have to go the route of ampless head unit + seperate amp for mid/highs. One less piece of gear to mount and maybe a bit cheaper that way. Plus we don't exactly need something to drown out passing jetliners, just overcome (gravel) road noise out here in the boonies. But maybe the idea of mainstream consumer deck having an external loop is a pipe dream? TIA, -=s |
#3
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Basic deck / integrated amplifier topology questions
Scott Willing wrote
Trying to keep costs reasonable (total, CDN$500 tops). Topology will be a basic biamped arrangement with a pair of speakers in the doors for mid/highs and a sub behind the seat. I have a decent little 2-way crossover and a Sony power amp I'm not using anymore, to get him started on driving the sub. Where are you at? You will probably be looking at ~$200 for a deck, $50 - 75 for the coax speakers, $100 for the sub and ~$60 for the wiring. Are you building the sub enclosure yourselves? I just thought it would be nice if we didn't have to go the route of ampless head unit + seperate amp for mid/highs. One less piece of gear to mount and maybe a bit cheaper that way. Plus we don't exactly need something to drown out passing jetliners, just overcome (gravel) road noise out here in the boonies. I don't know if any of the low-end head units (the ones in your price range) have this option, but lately the better head units have highpass filters built in for the front and rear channels. Chances are it would be cheaper to get a second amp and run it off the less expensive head unit. If you pick up a small used 2 channel amp to run the front speakers you don't have to get a ampless head unit (they are normally top-of-the-line and quite expensive). But maybe the idea of mainstream consumer deck having an external loop is a pipe dream? Now that filters are available built-in, I would say it is a pipe dream. -- Regards, Dan Snooks |
#4
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Basic deck / integrated amplifier topology questions
Daniel Snooks wrote:
*Scott Willing wrote Trying to keep costs reasonable (total, CDN$500 tops). Topology will be a basic biamped arrangement with a pair of speakers in the doors for mid/highs and a sub behind the seat. I have a decent little 2-way crossover and a Sony power amp I'm not using anymore, to get him started on driving the sub. Where are you at? You will probably be looking at ~$200 for a deck, $50 - 75 for the coax speakers, $100 for the sub and ~$60 for the wiring. Are you building the sub enclosure yourselves? I just thought it would be nice if we didn't have to go the route of ampless head unit + seperate amp for mid/highs. One less piece of gear to mount and maybe a bit cheaper that way. Plus we don't exactly need something to drown out passing jetliners, just overcome (gravel) road noise out here in the boonies. I don't know if any of the low-end head units (the ones in your price range) have this option, but lately the better head units have highpass filters built in for the front and rear channels. Chances are it would be cheaper to get a second amp and run it off the less expensive head unit. If you pick up a small used 2 channel amp to run the front speakers you don't have to get a ampless head unit (they are normally top-of-the-line and quite expensive). But maybe the idea of mainstream consumer deck having an external loop is a pipe dream? Now that filters are available built-in, I would say it is a pipe dream. -- Regards, Dan Snooks * the Pioneer DEH-5500 is about the cheapest direction to go in. It has only 2 pre-outs. Front and rear/sub (I think you can switch between it being rear output or sub output). You can highpass the speakeroutputs, and run the sub-out to the amp (it can even parallel its internal rear amps for running a 2 ohm sub with 40Wrms!!!!!) Now comes the wine part: I wanted this deck with my 'new' car, but the person who sold it to me (who sells JVC caraudio and has 'friends'who could get Pioneer) claims he buys deck JVC XXX-3101 for 350 euro's from JVC Netherlands (COST-PRICE, EXCL. TAX !!!!!!) when it retails on-line in Germany for 280 euro's (incl. tax!). So I wound up with a cheap a$$ cd-receiver with one pre-out. (That's what he promissed to give for free, but I wanted to have a better deck and pay the difference. But when I heard his prices, I obviously stopped this plan...) Sorry, had to get this off my chest. -- R-P ------------------------------------------------------------------------ CarAudioForum.com - Usenet Gateway w/over one million posts online! View this thread: http://www.caraudioforum.com/vbb2/sh...hreadid=157837 |
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