Impedence?

Why is it so hard for some people to believe that a heatsink can have one dedicated channel of amplifier in it? A mono amp is just that mono - meaning ONE! It has nothing to do with bridging or not bridging. If you have a 2 ohm net load, HOWEVER you achieve it (1 @ 2 ohms, 2 @ 4 ohms, 4 @ 8 ohms... whatever) THAT is the load a mono amplifier will see. This guy really was stoned, (or just a MORON - this is the likely scenario) and he can suck a fart out of my ass if he thinks he knows more than the people here. He is simply and completely WRONG. I know people are always bragging about "how long I've been doing this"... I see it in Bakersfield all the time, but 90% of those people never stayed awake in class (let alone absorbed anything), and can't find their own asses with both hands when it comes to understanding electricity. --Sorry for the language, but people like that piss me off. It makes it harder for people (like kfr01, DYohn, Steven, Stevdart (anybody else I may have forgotten - sorry) and myself) who really *DO* understand to help people who *DO NOT* understand.It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

kfr01: This wasn't freakin funny at all! Man it felt like the I was in the twilight zone or something! I'm standing in the the highest volume shop in town (i'd post a link but I still want a deal on a set of Boston Pros ) and the guy is *insisting* that two 8-ohm woofers are needed for a 2-ohm load on my monoblock and then snickering to himself and saying "Well if its always worked for you before..." This wasn't amp specific either, he was gesturing to all the amps saying that no one really understands how they work and they are all really 1-ohm stable, and, because of the way the industry has taken shape, when monoblocks say "2-ohms" its really because companies assume ppl will just hookup 1-ohm loads thinking they are hooking up 2-ohm loads (because even tho the circuit is at 2-ohms, the amp 'sees' 1) and no one really knows any better. Thats when he got off on Circuit City and Best Buy controlling the industry. What Placid Warrior said was the crux of his argument; that monoblocks have the 2 - and 2 + outputs so when you only use two of them, you are bridging them for a net load that halves what the speakers come to... I think, I mean he kept using the phrase "bridged internally." Steven Kephart: This actually all started because I was asking him about wiring up 3 JL 10w3's... like, I said I wanted to wire three 10's.. 4-ohm DVC's, for a net of 2.6 ohms .. he responded "why would you do that? you'd waste alot of power" to which I said "well, its only about 200-watts and I was looking at real high efficency drivers anyway, I think I can get the volume I want from 600 watts." So then he moves on to trying to sell me two Boston 12's.. DVCs with those new goofy jumpers that let you set the woofer to 2 or 8 ohms.. I say "do these come in SVC version, if I ran 2x12's I'd want all 800-watts from my amp" To which he looks at me funny and starts explaining that 2 8-ohms woofers in parallel *would* be a 2-ohm load.... nevermind that a minute ago *three* 8-ohm woofers in parallel would be "wasting power"... What is DCR anyway? So yea I have to go back up there tommorow and talk to some other guy about my broken-speaker.. I'm really tempted to show him this thread.."I'm finished!" - Daniel Plainview

sedate wrote: he was gesturing to all the amps saying that no one really understands how they work and they are all really 1-ohm stable....

Actually he is correct in this statement. All amplifiers are 1 Ohm stable as long as the maximum power and thermal capacity are not exceeded.

I understand your point Poormanq45 but that's not strictly correct.  Many amps can sustain a 1-ohm load that are not rated for it, but many others are not 1-ohm stable at all and will go into a shorted condition at less than rated load levels.  Some amps have short-circuit protection set at 1-ohm.  Others will simply fry the output transisters with 1-ohm load as soon as power is applied.Support the12volt.com

Poormanq45: "all amps are 1-ohm stable" As has been my expierence as well... I've hooked up a 2-ohm mono load to a 6-channel I have on numerous occasions with no problems.. As my friend did with his amps all the time.. The "meat" here is that he was telling me that that to get the maximum *rated* power from my amp(480wattsx1@4-ohms,800wattsx1@2ohms), two 8-ohm woofers in parallel would do that. If I'd been doing it differently, he was "glad its worked for me." DYOhn: I really don't want to smear the store, they've always given me real good deals and I think (would like to believe) the guy was earnestly trying to help.. even if he was dead wrong, or confused, or not explaining himself well enough... and a wee bit smarmy about it."I'm finished!" - Daniel Plainview

sedate wrote: DYOhn: I really don't want to smear the store, they've always given me real good deals and I think (would like to believe) the guy was earnestly trying to help.. even if he was dead wrong, or confused, or not explaining himself well enough... and a wee bit smarmy about it.

I was being a bit facetious and agree it is never good to publicly impugn a business... but it might be good for you to express your experience to the store manager and let them know some of their employees seem to be spreading bad information.

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Sedate: I'm moderately confident he is confused because of the reasons I listed earlier. I seriously think you should print the bcae1 page out for him and watch his eyes widen. :-) Highlight with yellow highlighter the lines I quoted. New Project: 2003 Pathfinder

DYOhn, kfr01: Naww, like.. the guys that work this store are *real* jerks. I know that if I went into this store trying to complain about *anything* it would work out horribly. This is the kind of place where the management would say "well screw you get out then." Like.. I'm kinda used to car buffs being sort of snotty and elitest, but the guys at this store are just totally over the top. I dunno what their deal is.   I've gotten some really bad advice at this shop as well... nevermind the whole woofer-shopping debacle that resulted in this whole thread. I'm thinking I will probably wash my hands of the shop after my speaker gets fixed...    As much as I love car audio, I really dread going to this place."I'm finished!" - Daniel Plainview