Everything posted by Impious
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Speaker selection help
If you have the Jimmy, pull the door panels off and verify how much depth you have to work with. That could make a difference in your speaker selection options. Also, I would try to find out exactly what model RF amp you have. As long as it works fine & puts out enough power for your needs there may be no reason to spend the extra money on an amp.
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HIFONICS BRZ2400.1D fusing
You always want the fuse as close to the battery as possible. There's no reason to fuse near the amp, the fuse near the battery will protect the rest of the circuit (wire and amp). The underhood fuse near the battery will double as the external fusing for the amplifier. Choose the fuse size accordingly.
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Welcome to the IHoP
The 'Hop is 1/3 of the site's total posts.
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need Bravox speaker info
http://bravoxaudio.com/download/05.pdf FWIW, I've enjoyed both the CS60CF & the 603's. No experience with the 60k's however. But linked you to a magazine review of them that you might find helpful.
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Welcome to the IHoP
http://www.myfoxtwincities.com/dpp/news/minnesota/sartell-crash-kills-fiancee-josh-laine-kolleen-kill-may-10-2010
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Eclipse CD7200MKii questions.
http://www.eclipse-web.com/us/download/manual/cd7200mkII_e/audio/contents/1636.html
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Quality or quantity
It entirely depends on what drivers you are actually considering. If you are able to find a 15" driver within your budget that meets your performance, space and build quality objectives, I would choose the higher displacement potential of the 15" driver 100% of the time. Also, there's nothing more "punchy" about a 10" driver.
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Processor question
I also wouldn't necessarily recommend an MS8 for a 1st time active user either. With everything being done behind the scenes in my opinion it takes a little bit of preexisting knowledge to understand why the MS8 does what it does, especially when results are less stellar than expected. I think for someone learning the ins and outs of tuning it's better to see the numbers on the display and be in control of what is changing, that way when the sound goes from good to bad or bad to good they hopefully gain an understanding of why a certain change had the result it did. I miss my H701 for that very fact.....when something doesn't turn out exactly right with the MS8 it takes a bit of figuring out why I didn't get the result I expected, and how to fix it.
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Processor question
How experienced in audio setup and installation are you? Reason I ask is because the MiniDSP isn't as plug-n-play as a car audio specific processor. Last I knew there are some specific considerations to installing a MiniDSP in a car environment, such as it not being properly isolated so without the correct installation there was a high risk of noise and such. If this is your first go-round with active and you are less experienced with electronics in general, it's probably not a great first processor. The initial cost of the MiniDSP appears low, but by the time you factor everything in cost wise (casing, isolation, etc) it ends up being pretty equivalent in cost to a lot of used car audio specific processors. Also, I'm not sure if there is a time delay for the audio to route through the MiniDSP's processing. If there is, then in order to run a 2-way active front stage + subwoofer you would need atleast 5 channels of processing so that all of the audio system was running through the processor, which means you would need either two 4-channels or the 8-channel. So, long story short.....depending on your experience and skill level, you very well may be better off to look at car audio specific products.
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Strapping amps question
And don't get confused on the subwoofer impedance. The impedance of the load (the impedance the subs are wired to) doesn't change. If you run the subs in series-parallel for a 6ohm load, then the load is 6ohm. What does change is the minimum impedance the amplifier(s) are able to drive when strapped. The minimum impedance doubles, since each amp effectively "sees" half of the load. If the minimum impedance each amp is individually able to be ran at is 1ohm, then when strapped the minimum impedance would be 2ohm. This is why it would be bad to strap them into a 1.5ohm load.
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Strapping amps question
If the amps are 1ohm stable, then when "strapped" the minimum impedance they would be able to accept is 2ohm. Do not strap the amps onto a 1.5ohm load. With 2 dual 6ohm drivers, you could not wire the subs together into a 3ohm load. Which means you could not strap your amps to a 3ohm load. Your options wiring the subwoofers together to strap the amps, would be 1.5ohm and 6ohm. Your best option is to run one sub per amplifier at 3ohm. This would be exactly the same as strapping the amps and wiring the subwoofers together at 6ohm, but I think strapping unnecessarily complicates things. Just run one amp per sub. The other option is to sell your amps and purchase something that may be more suitable for your goals.
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do i need to worrry about the voice coil?
I wouldn't buy it. That's a variance of more than 25%, which I would think production tolerances for a voice would be tighter than 25%. It may indicate that there is a problem or an impending problem.
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Bad battery
Are you sure it's not taking a charge, or is it discharged low enough that your charger won't "recognize" the battery to actually initiate charging it?
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Silverado by Epicenter Designs
No. Honest. I don't know why people think high output capable systems have to disregard basic audio principles. I won't deny that the craftsmanship side of the install looks excellent. System design and layout could be significantly improved. And then less knowledgeable members see these types of high quality craftsmanship installs and try to emulate them, if not in quality then in design, when the application of acoustic principles within the system is lacking.
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Silverado by Epicenter Designs
Very nice fabrication. Terrible speaker layout.
- F-1 audio wtf
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breaking in sub
Yes, you will be effectively bypassing the crossover in the amplifier. You can play around with the slope, see what setting you like best. 0db is equivalent to "off". 24db is fine, but try the different settings see what you like best.
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Next Outrageous Deal | 12-15-2011
Thank you Mark & Aaron for offering another Outrageous Deal to the members. My fingers were crossed it was going to be a Leviathan....I could use two of them (*hint hint* for next time )
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breaking in sub
That is entirely way too low. It should be in the 60-100hz range for most typical systems, depending on your system and preferences. Also, it would appear you are using both the lowpass in the amp and in the headunit....while there is not something technically "wrong" with this, in your case it's probably a little unnecessary. My advice would be to increase the lowpass filter setting on the amp as high as the knob will go or simply shut it off if at all possible, then reset the lowpass crossover on the headunit so the crossover frequency is somewhere in the range I previously listed.
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breaking in sub
So is the 31hz setting a highpass or a lowpass? It makes a big difference.
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breaking in sub
Just for reference, determining the "true rms output" of an amplifier isn't as simple as using a clamp meter and DMM. If you are doing this for the purposes of gain setting, the clamp really isn't going to be of much help at all and the entire endeavor will possibly just make things worse for you. Easiest method for setting the gain is to do it by ear. If that is something you feel uncomfortable with, you can use the DMM method (no clamp necessary) previously linked to in this thread. That amp is rated 600w @ 4ohm, and that's probably a little overrated. 1200w @ 1ohm seems realistic, although based on the "max" and 4ohm RMS power rating 1800w is probably what Pyle would tell you the amp is rated for @ 1ohm. Personally I would stick with the 1200w number to be on the safe side, the difference between 1200w & 1800w isn't really that audible anyways. If you use the DMM method of setting the gain, based on 1200w @ 1ohm the target voltage would be 34.64V (again, the test method for setting the gain w/ the DMM and achieving this voltage was previously provided). From there you can tweak by ear. Your crossover settings confuse me. Is it a highpass or lowpass crossover in the Eclipse that you have set to 31hz ??
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Enclousre Build for Technoboy (One 10 Inch Fi Q)
Like I said in my last response.....I would begin pursuing every legal remedy. If you have his contact information contact his local police department, explain the situation and find out what type of complaint you can file against him. If there is anyone else in your position, I would encourage them to do the same. The more complaints the PD receives the more likely they are to act on them, IMHO. Also find out what you would need to do to file a suit against him in small claims and/or what other options are available. It's fairly evident that waiting for him to rectify the situation himself is getting no where quickly.
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why are stetsom amps so pricy???
I fixed it for you. I'd much rather have, for example, ZED > Sony. Current product lineups, sure. But Sony has a ton of amps in their history which are very high quality pieces of engineering using very high quality parts and construction. Hell, some of them still sell for several grand a piece....someone just posted a build log on here using a pair of them. With the engineering capabilities and capital of Sony they could dominate again fairly easily if they chose....the quantity and margins just aren't there in that market anymore, likely more profitable for them to stick with the more entry level gear they presently offer.
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Time to upgrade my tweeters
Are you presently running active? If not, how you do plan on changing tweeters? Do the passives have a level setting adjustment for the tweeter?