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#21
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"mrbog" wrote in message As stated, no audio card today (afaik) has a 4x or 2x amplified out port. I was happy with my soundcard in 1999, Happy with the pathetic little amp's 5% distortion ? Fortunately an onboard amp is not generally a criteria these days. geoff |
#22
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"mrbog" wrote in message Yea, solve my problem of idiot posters responding in a ratio of 5 to 1. I need to hear my PC all the time. Even if I didn't, how annoying would it be to reach behind my desk and flip a switch every time I needed to hear anything, and then again after I was done. You call that a solution? Why not just leave it on ? geoff |
#23
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#24
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#25
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On Mon, 01 Nov 2004 11:29:21 -0800, mrbog wrote:
Well you response was at least an attempt to help, thanks. Like everyone else, you're wrong and don't have a solution, but you tried. .... and you don't try to help yourself, just pooh-pooh the responses that you get. No wonder all the responses directed at you get more and more hostile. You obviously have no social skills, or perhaps Tourette Syndrome? I made my needs perfectly clear- amplified output. Riiiight. Doesn't occur to you that different amplifiers have different purposes. That's why its a good thing that we moved away from the whole amplified sound card thing - because it means the amp can be properly matched to the speaker. First of all, the Sound Blaster Extigy has an AC adapter. I'm assuming you just didn't know that, because the same paragraph where you recomend it, you start out with "You're right about the power bricks". So thanks for the idea but no go. Oh, you sound sooo sincerely thankful. Knobhead. Yeah, I forgot that the Extigy uses an external DC adapter. Perhaps you could stop being such a lazy whinger, and search for similar products - like the Sound Blaster Go!, which is also external USB, but is powered by the USB bus: http://www.shentech.com/crsoblgoexus.html Anyway, I don't give a flying **** whether this suits your needs or not. The other problem with the Sound Blaster Extigy is that it costs $150. This is just another case for my point that I could get a better soundcard for the average user's needs in 1999. I pad $29.95 for my (beloved, sadly) Soundblaster 64 AWE value. Nearly 6 years later I'm paying $150 to get a bulkier powerhog to be a poor substitute? Pathetic. Yeah? Well in 1988 I paid AU$0.50 for a can of Coke. Thankfully, the SB Go! is also much cheaper than the extigy, which is sure to be (loudly distorted) music to the ears of a cheapskate living in the past... I'll keep looking, but my point very clearly stands firm, in spite of the barrage of hopelessly flawed arguments against it here. I was happier with my soundcard in 1999 than any card made in 2004 (afaik), and the nature of my need is obviously not so extravagent. Well, I wouldn't be hoping for any real help here. Any hopes you had were dashed when you revealed yourself to be more interested in complaining than solving the problem. You just keep up your fruitless, ineffectual looking, and do us all a favour by refraining from posting any more of your tripe. |
#26
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Well, the bottom line is that most PC power supplies really don't have the
capacity to operate a power amplifier along with everything else in the machine. It's simply a bad design. Sure, it probably works in some configurations, but I'll bet they had constant customer service problems with other devices installed in the same computer crashing all the time. It's a good thing they stopped doing it. |
#27
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"Karl Uppiano" wrote in message
news:beGhd.3625$KL4.1078@trnddc07 Well, the bottom line is that most PC power supplies really don't have the capacity to operate a power amplifier along with everything else in the machine. It's simply a bad design. Sure, it probably works in some configurations, but I'll bet they had constant customer service problems with other devices installed in the same computer crashing all the time. It's a good thing they stopped doing it. It is possible to crash a PC by putting too big of a power amp on the 12 volt line, but it's also possible to get a useful amount of power that way. |
#28
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On Tue, 02 Nov 2004 06:58:15 GMT, "Karl Uppiano"
wrote: Well, the bottom line is that most PC power supplies really don't have the capacity to operate a power amplifier along with everything else in the machine. It's simply a bad design. Sure, it probably works in some configurations, but I'll bet they had constant customer service problems with other devices installed in the same computer crashing all the time. It's a good thing they stopped doing it. Ingenious argument. I suspect it also has something to do with people wanting computer speakers with a little bass output. The only way to get this from a small box is to pump quite a lot of power in. When building non-music systems requiring only basic sound my local supplier has powered speakers that tap mains power off a piggy-back iec connector. They're only 5UKP a pair, and quite surprisingly good. Musicians require better. But invariably already own it. They need a simple cable to their existing hi-fi system, or to their mixer/amp/monitors etc. if they're recording musicians. We're beyond the scope of dedicated "computer" speakers here. |
#29
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"Arny Krueger" wrote in message ... "Karl Uppiano" wrote in message news:beGhd.3625$KL4.1078@trnddc07 Well, the bottom line is that most PC power supplies really don't have the capacity to operate a power amplifier along with everything else in the machine. It's simply a bad design. Sure, it probably works in some configurations, but I'll bet they had constant customer service problems with other devices installed in the same computer crashing all the time. It's a good thing they stopped doing it. It is possible to crash a PC by putting too big of a power amp on the 12 volt line, but it's also possible to get a useful amount of power that way. Well, an amp running on a +/- 12 volt supply can theoretically provide about 8 watts RMS into an 8-ohm speaker, or 16 watts into a 4-ohm speaker. Double that for stereo: 16 or 32 watts. That translates to about 2 amps or 4 amps, respectively. Unfortunately, the power supplies I looked at only supply 1A on the -12 volt line. The supply would most likely go into current limiting (or worse) if someone were to attempt to drive the amplifier to full power into an 8-ohm or 4-ohm load. The amplifier would have to draw much less than this in order to be a good neighbor on the bus. If the power supply goes into current limiting, other devices will be starved for power, and the computer could crash. A +/-12 volt supply is about right for line level outputs, however. Simply current-limiting the amplifier would make it a good neighbor, and it could drive most headphones to reasonable loudness. I can't tell if the OP wants more gain or more power. Most external, hi-fi amps I've seen have about 20 dB more gain than they need, so that the amplifier approaches full output on peaks when the volume control is only halfway up (audio taper pots I've worked with are about -20 dB at the mid point). I think they leave more headroom for the multi-channel mixers on the sound cards. I've also noticed that the volume controls on the Windows mixer don't seem to have a normal audio taper. They feel more like a linear taper, and pushing them wide open doesn't cause the kind of extreme gain we're used to on normal consumer products. I wonder why that is. |
#30
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"Karl Uppiano" wrote in message
news:xKXhd.5290$pY6.683@trnddc04 Well, an amp running on a +/- 12 volt supply can theoretically provide about 8 watts RMS into an 8-ohm speaker, or 16 watts into a 4-ohm speaker. Double that for stereo: 16 or 32 watts. That translates to about 2 amps or 4 amps, respectively. Unfortunately, the power supplies I looked at only supply 1A on the -12 volt line. I've only worked with amps running off of the +12 line, which has lots of amps. That and bridged output stages provide similar amounts of power to what you seem to be talking about. |
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