posted
ok im gunna steal audiokids idea cuz i been curious about this myself. i have a RCA home reciever with 2 set of front speaker outputs. it i have some basic floor model speakers hooked up to one set of front speaker outputs. my question is can i use the other set of outputs to power my subs (pioneer 12"s) if i can get a crossover? or do i need to hook them up to the sub output on the back? and then i would need an amp so could i use one of those DJ amp things from rat shack or order one off partexpress? could i find one on ebay cheaper? i would like for this to be a cheap, but effective. i would build a box for the 12"s (3 cubes tuned to 28hz). they will be strictly for bass and bass only.
posted
your receiver has two front outs... they are probably switchable, not both powered.
i'd go with the PE amps, they don't get much cheaper than that ($130). they put out 250w@4ohms... so you may want to take that into consideration (wiring, ohms).
also i'd tune lower for in house use... there isn't cabin gain to make up for missing low end.
Posts: 218 | From: midwest | Registered: Jul 2002
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posted
i run 2 round solobarics off of a NAD 2150 amp (you can find one on eaby for $100-200) with no crossover and they get loud and low... the amp that is rated at only 50 watts per channel is more than enough. if i turn the volume up i get people complaining that their windows are rattling.
if i ever change anything, i will get an nad 2200 and some HL Fmods for the subs, and continue to use my 2150 for my bookshelf speakers.
back to you... you should be able to run those pioneers off of "channel b" or whatever it is called and it will work fine. remember that you will be running your rca at 4 ohms, so it may start to clip or overheat at more than 50% volume. you could get some inline low pass filters at partsexpress, or just leave your subs playing the full range. my box is tuned to about 25 hz, and sometimes i wish it was tuned even lower. maybe 20. 33hz will rattle windows all over my dorm and is painful.
so basically i am saying to just simply build the box and run the subs off of "speaker b". if you like that then leave it.. if you decide you crave more power, then look into getting a plate amp, or a used NAD, Carver, or Phase Linear off of ebay.
blaupunkt cassette cdt classic 6.5 comps us acoustics smallest cheapest amp kicker s 12 c (round) solobarics in a box way too big and tuned way too low for a car.. Posts: 512 | From: Springfield, OH - Mishawaka, IN - DC - Orlando, FL | Registered: Jan 2002
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posted
thanx for the replies. i can use both of the front outputs at once which is good for a cheaper line receiver. also i tried hooking one sub to an output and i had to turn the volume up pretty high till i heard anything. i think i will go with a plate amp, unless someone can direct me to as what i did wrong. all i did was run the wire from the output to my sub box.
-------------------- 1993 F-150 XLT 4x4 300 I6/E4OD Alpine CDA-7894 Pioneer 3 ways all around Alpine MRV-F400 for mids/highs Infinity Perfect 12.1 1.0V3 custom sealed box Rockford Fosgate Power 450S for sub Posts: 464 | From: Coal Region | Registered: Sep 2002
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blaupunkt cassette cdt classic 6.5 comps us acoustics smallest cheapest amp kicker s 12 c (round) solobarics in a box way too big and tuned way too low for a car.. Posts: 512 | From: Springfield, OH - Mishawaka, IN - DC - Orlando, FL | Registered: Jan 2002
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I have one of those Parts Express 250watt amps and I highly dislike it. It's good for movie use, but when playing music at loud volumes, it overheats after an hour or so. So I scrapped it and bought a pro audio 2 channel 700watt amp. Fan cooled internally so no problems now.
-------------------- Fi Cactus Sounds Orion Eclipse Image Dynamics Iraggi XS Power Posts: 1459 | From: Grand Forks, North Dakota | Registered: Apr 2001
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ok since you took my post idea i want to know one thing. since i have my KLH sub and it is a powered sub could i possibly take the sub out of the box and test the ohm load of the coils then replace it with another 10 either a scv 4 ohm or a dvc 4 ohm so that i can wire it to the same ohm load as the KLH sub is??? would this gain me anything??? i was thinking along a cheap pioneer or kenwood tornado sub
-------------------- 93 ford ranger STD CAB JBL 600.1 running an Elemental designs 10" A series in a .65 cu ft sealed box invert mounted between bucket seats pioneer 6300 HU alpine type R 6.5 components in modified doors. pioneer 2 channel amp for the components 50 sq ft of Second Skin : ) Posts: 373 | From: greenville NH | Registered: Oct 2002
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audiokid, i didnt mean to "steal" ur post idea, but since u asked that question it reminded me so i thought id ask as well. u are lucky since u have a powered sub, i would just replace it and see how it sounds.
-------------------- 1993 F-150 XLT 4x4 300 I6/E4OD Alpine CDA-7894 Pioneer 3 ways all around Alpine MRV-F400 for mids/highs Infinity Perfect 12.1 1.0V3 custom sealed box Rockford Fosgate Power 450S for sub Posts: 464 | From: Coal Region | Registered: Sep 2002
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Ive been doing this for a long time now, except i use car amps instead of home amps. I got 2 12's in 4 cubes with a mtx 500d in my room now, needless to say i knocked the soap holder off the wall in the bathroom when i put it at full gain. I just took an old set of rca's and cut them, plugged the wires into a speaker output on the home cd player, got a car battery in a special built mdf box in case anything leaks and a battery charger that will hold a steady 15 volts. Its LOUD i wish i had a meter. Posts: 438 | From: Louisville,Ky USA | Registered: May 2001
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is that a normal battery charger that they use at garages and u can buy from like sears? cuz that would be awsome to do. get a JBL BP1200.1 amp and 2 12"s.....wow....the possibilties
-------------------- 1993 F-150 XLT 4x4 300 I6/E4OD Alpine CDA-7894 Pioneer 3 ways all around Alpine MRV-F400 for mids/highs Infinity Perfect 12.1 1.0V3 custom sealed box Rockford Fosgate Power 450S for sub Posts: 464 | From: Coal Region | Registered: Sep 2002
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Yeah its just a regular battery charger. I put it on 40 amp charge to get the 15 volts, i could also put it on 200 amp start but im scared i will blow my amp even though i have an inline fuse and all that, no telling how much voltage that would be. Of course the voltage still drops but it only drops to about 13 volts or so, so pretty much about the same as your car would.
[ 12-10-2002, 02:21 AM: Message edited by: So Loud It Hertz ]
Posts: 438 | From: Louisville,Ky USA | Registered: May 2001
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posted
How bout running a home audio amp(that's rated for 4ohms) at 2ohms????
And if I did try it, do you think it would go into protect or just fry
-------------------- 91' Continental Alpine 7969 & 1214..handmade RCA's (parts from Parts Express)..HCCA 6s & 5s Comps. up front..DD 9917 .. 2 RF 1500BD's..2 Eclipse 3242 4ch's..2 SP1700's & a Yellow Top..3 Tsunami Distro. Systems..250a Mr. Alt...Avantguard 4...
Getting ready to stuff it in a Grand Cherokee DON'T EVER SET SOMETHING LIKE THIS NEXT TO YOUR TV!! Posts: 1457 | From: MI | Registered: Jul 2001
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posted
so if i would go that route (car battery n charger) would i wire the power to the positive side (and yes with an inline fuse) and the ground to the negative? where does the remote lead hook up to? and what about the RCAs? also what type of battery should i use? would a normal battery be fine? and doesnt the battery charger draw a lotta power (which means higher elc. bills)....this sounds like one hell of a good idea when i go to college
-------------------- 1993 F-150 XLT 4x4 300 I6/E4OD Alpine CDA-7894 Pioneer 3 ways all around Alpine MRV-F400 for mids/highs Infinity Perfect 12.1 1.0V3 custom sealed box Rockford Fosgate Power 450S for sub Posts: 464 | From: Coal Region | Registered: Sep 2002
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posted
Calvin: I guess it depends on how strongly the amp is built. I run mine low all the time, its 6 ohm but i run it at 4 with no problems. There should be some kind of protection on it, just be careful.
skorch: Yeah just wire up the positive to positive and ground to ground and just have a jumper wire going from the positve side of the amp into the remote terminal. As far as RCA's i take an old set and cut one end off and plug the wires into a channel on the radio. Any car battery is fine im using a 650 cca batter right now which isnt that big at all. You dont have to always have it on the 40 amp charge, most of the time mine is on 40 amp 2 amp trickle charge which draws probably hardly any power. I just put it on a higher charge when it starts cutting out on high volume or if i want to break something in the house.
I dont really know if a computers ps would power a cd player, that sounds like some fun in the near future though.
Posts: 438 | From: Louisville,Ky USA | Registered: May 2001
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posted
i actually have run an HU off of a pc power supply..
the one i have right now says it does 7 amps at 200 watts. 14 amps at 300 watts. so a good 200-400 watt power suppbly could run an hu, but i wouldn't trust it to run an amp. also.. you have to run it all the time, otherwise you lose all of your settings.. that is why i quit using it.. i am sure you could wire a remote control car 12 volt battery pack in there or soemthing but i haven't tried that yet.
blaupunkt cassette cdt classic 6.5 comps us acoustics smallest cheapest amp kicker s 12 c (round) solobarics in a box way too big and tuned way too low for a car.. Posts: 512 | From: Springfield, OH - Mishawaka, IN - DC - Orlando, FL | Registered: Jan 2002
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posted
"and just have a jumper wire going from the positve side of the amp into the remote terminal."
so i just run a wire from the + on the amp to the remote lead? if i use the HU do i need to do this?
"it.. i am sure you could wire a remote control car 12 volt battery pack in there or soemthing but i haven't tried that yet."
does it hurt to leave it on all the time? and does it matter how many watts it puts out...i most likely wont be using the speaker outputs (but it does give me an idea)
Materials (most likely gunna get most of this used espically the battery charger) Car battery (any ol size) Battery charger (ran at 40amps to keep the battery charged) amp HU PC power supply (200-400w) RCA cables
does it matter how big of a battery charger? and is there small ones out there?
Procedure then hook up the battery charger to the battery (of course in a box to protect from acid) then hook it up to my amp (with inline fuse). then get my HU powered by a PC power supply and connect the RCAs to the input then run them from the pass-thru to my home reciever. then hook up my remote wire from the HU to the amp. then hook up my subs n let it rip...kinda sounds like my truck set up in my room, hehe
quote:Originally posted by calvin: How bout running a home audio amp(that's rated for 4ohms) at 2ohms????
And if I did try it, do you think it would go into protect or just fry
Depends on the amp. I'm sure Crown amps would handle it no problem. Take a look at any of the following brands: Crown, Krell, QSC, Rotel, Parasound, B@K, Marantz, Crest, Anthem, Samson, Sunfire, NAD, Carver, Adcom...
-------------------- Fi Cactus Sounds Orion Eclipse Image Dynamics Iraggi XS Power Posts: 1459 | From: Grand Forks, North Dakota | Registered: Apr 2001
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posted
If youre going to run a deck also you dont have to do the jumper or cut the rca's, just use them as if you were using it in a car.
They do sell smaller sized battery chargers just try to get one with a 40 amp setting.
Posts: 438 | From: Louisville,Ky USA | Registered: May 2001
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