What would be a good amp to run 2 12" Alpine type Rs. they are rated at 300 watts each 700 max. i dont have them yet so i dont know if i should get dual 2 or 4 ohm ones, it kinda depends on what amp i get. any help would be great. thanks

 

How much are you wanting to spend on the amp? If your looking for a top-of-the-line amp, get Memphis. If not, then get a Boss Mono-Block. Get dual 4-ohms for the subs.


Colby

 

Does anyone know if Crunch Amps are any good? I can get a 150x4 Crunch amp for $200?

 

Hey 89 speed demon are you refferring to a PUNCH amp?

Im not a fan of them but they are usualy faily cheap. Fosgate makes them. You can probably find something a little better.

 

No crunch. here goto this website http://audio-n-more.com/Crunch/crunch.htm is the Vdrive one.

 

why do that? when for $184 you can get a JBL powervalve 600.1 off ebay, it puts ouut 600 watts RMS, and thats clean undistordted power, buy that to power your two 12's and you'll be plenty happy specs for it are;
300x1 @ 4 ohms
600x1 @ 2 ohms
600x1 @ 1 ohm

the amp is 1 ohm stable, however it is said to become a little "muddy" at 1 ohm after continuos playing

P.S. STAY AWAY FROM BOSS talk to redbird400 if you want to know why

 

Ive personally never heard of crunch. Look at as i normally say diamond audio, ppi or JL audio there some of the top 3 producers out there.

 

i think that the JBL would be perfect for your application. it really puts out about 700 watts, so 350 to each subs would be great. they never seem to get hot and are very clean for what you pay. stay away from the lower line things such at Pyramid and Boss. Those are not they type of amp you want on those subs. why get nice subs only to power them with sub-par amps?

 

I have never had any problems whatsoever with Boss Amps. Crunch amps are AWESOME for the price. Won't find a better deal. BUt none of these brands compare to the price or quality of a Memphis or Autotek.

Colby

 

first off, why buy a great pair of subs and push them with junk? Crunch=poor signal quality which leads to blown subs. Boss is another terrible amp. Stick with brands such as Alpine, Rockford Fosgate, Kicker, and you should get great sound and very few worries.

I personally recommend getting a Rockford Fosgate Punch 500. I ran 4 Type R's with 2 of them and they hit really hard. Great competition quality sound.

 

ya but the JBL is cheaper than the RF punch 500, and it should put out about the same power!

 

Is this the RF one your talkin about?


Rockford Fosgate 500X
4 CHANNEL AMPLIFIER
4X62.5 WATTS @ 4 0HM
4X155 WATTS @ 2 OHM
2X250 WATTS @ 4 OHM BRIDGED
BASS PUNCH @ 45HZ: 0-18dB
CROSSOVER FREQUENCY: 80HZ-120HZ LP/HP
VARIABLE PUNCH BASS
INPUTS: HIGH/LOW LEVEL
LOW LEVEL INPUT: 4 CHANNELS

 

Personally im not a RF fan theres many more things of better quality out there. Thats a typical best buys system with overatted power.

 

overrated power? i dont think you know what you are talking about. 99% of the amps that leave their factories have power levels higher than advertised. fosgates sound really good and will last longer than alot of other brands. even their lower wattage amps sound good when higher wattage is recommended for certain speakers.

jacob

p.s. where did you get your information anyways?

 

first off dont ever be ignorant and say that againg cause i do know what im talking about. ive had experience with them. I had a fosgate on my 2 12's and had nothing but problems with it. very poor sound quality. thats why i switched to ppi's. my friend was also runnin fosgate amps in his neon and the sound quality was very poor.

for the money theres better sutff out there. To each there own...but i know what im talking about tamu.

 

im not going to go around flaming RF because I know they do more than they say :hail: :hail: but i was merely suggesting the JBL BP600.1 it is ALOT cheaper than the RF Punch500 and it will put out more power, that was why i recomended it, it is what i am going to be using in my system.:lala:

 

dont call people you dont know ignorant. thats rude and unjust. saying you had problems with one amp does not make all of a company's amps bad. you gave no info on the amp (i.e. type or if it was used when you got it, etc) and who installed it. if you had one bad experience with it then im sorry but i work as installer for over 3 months and had just one problem with a fosgate amp that whole time. i was amazed by their quality on a regular basis.

you are right, to each his own, and i respect your opinion but remember, it is an opinion.

 

jbl is probably more power for a lower price but they are lower quality than the fosgate. however, in a good percentage of applications, the jbl is good enough. i definately agree with saving money (to a certain extent-boss or legacy). hope your amp set up turns out to be what you expect.

 

And its not rude and unjust to tell someone they dont know what there talking about?

im not going to argue this point any further, i just dont like being told i dont know anything when i really do. so dont flame me

 

maybe you read stuff a little closer and stop getting pissed at people for stupid reasons. i said and you quoted it:

thank you very much and your welcome.

 

RF started rating thier amps at 14.4v which you will almost never see. you'll see at good times 13.8v on average you'll be getting 13v or so ifyour bumping hard. and a whole 1.4v difference can be as much as 1/3 to 1/2 of the rated power taken away.

 

Thank you for enlightening us :lala: , i totally forgot about that, i wonder what JBL rates theirs @?

 

I belive 12.8 or 13.8 I know thats a big difference but I'm sure its not 14.4

 

Eh, fosgate has gone downhill, i've had quite a few of their products, I gave up on them,.....

we'll see how my bostons and Memphis Belle sound.

 

Well at least im not the only one who sees this.

 

Could it be, perhaps, that some of you are focusing too much on advertised #s?

I have a Punch 100DSM that's rated at 14.4V for Dynamic Power Rating @ 110 watts per channel. However, the Continuous RMS on a 4 ohm load from 20-20K Hz @ .05%THD is taken at 11.6 Volts and rates the wattage at 50 watts per channel.

That's what used to seperate RF from the others. They rated their amps at what the actual battery output would be when subjected to a load. Then the IHF-202 standard came along and changed all that.

The IHF-202 is an industry standard that measures power with a 1000 Hz burst, and repeated until the the THD is above 1% @ 14.4 Volts.

They may have given up on the "Real World" ratings they used to use because it made their amps look very weak in the typical consumer's eyes. For example, my amp cost me $389 back in 1990 for a 50x2 amp. The average guy thought I was nuts!!! Until they heard my system.

Now...... 12 yrs later, I've got it running one 12" Pioneer sub and it easily pounds harder AND SOUNDS BETTER than my friend's Sony Xplod 75 x 2 running his two Xplod 10s.

As I said, they may have changed their rating system since then. I don't really follow them anymore since the amp I own has lasted as long as it has. And as far as their quality goes, it may suffer more now than it used to, I don't know.

From what I understand, the "Punch" series are now the cheap amps, and if you want the kind of power that I have from my "Punch" then you have to go to the "Power" series (?Is that right?) which are a lot more money than the "Punch" series.

AJ

 

its good to see someone else that lives in the real world. some people dont even try things out before they bash it to other people. that is a bad way to get advise. seems to be alot of experts out there doesnt there?

 

yes, the punch series is the low line, and much cheaper than the power series, as far as RF goes, i love the old POWER series, they are awsome friend of mine has an old power 500 putting out almost 900RMS @ 2ohms!:hail:

 

again i speak from experience with there newer products in the real world. i never used one of there older style amps so i wondt know what there like. but there new porduct line that i have used leaves much to be desired.

 

...or leaves someone who knowns what they are doing when it comes to installing. :hail:

 

Quote:

Pyramid and Boss

Pyramid and Boss rhymes with flaming **** cavity.


I've heard a lot of good things about the JBL here as well. My next amp will probably be that one. Right now I'm using a lil' Jensen 300W amp (which quite honestly doesn't do too bad) to power my 2 JL 12w0's. Only problem is I know that I could get more out of it because I can crank it up and get no distortion but the amp'll cut off on heavy bass notes. Doh.

 

Jensen lol. We used to sell them at pep boys. I actually sold quite a few n customers didnt complain too much aobut them. They just dont like being cranked up. we used to try n blow out the display model amp and jensen sub in the store. they really odnt distort that bad just dont like over straingthemselves too much.

 

I've actually been fairly impressed with Jensen amps. I think I just need a higher powered amp for my application. But Jensen's products have greatly improved in the past couple of years.

I had a 600W Jensen amp, 4ch. bridgeable with crossover, that I used to power (at different times) 2 Blaupunkt 15's, 2 JL 10w0's, and I even put it behind a square Solobaric once, it held its own. I was impressed. It was actually pretty good quality and they're inexpensive as heck. I'm sure my current setup would be a lot happier with a little more wattage. Running 2 8ohm 12w0s bridged with the gains and levels up pretty high.

 

Listen to this guy. He knows what hes talkn about.

 

Fyrelance

Yeah when i sold them in the store they seemed better than previosly. i never got alot of feedback on them, glad to hear they sound good. The 400 watt one was the biggerst model we sold.

does anybody know if orion is still aorund cause they used to be pretty good too.

 

figured i throw in my two cents. RF is a little on the expensive side for what it does. they do put out more than they are rated at. but i wouldnt just buy because of that, many companies do. mtx, kicker, etc. RF used to have a very good build quality, but i have also heard they have gone down a bit in the last few years. the JBLs are a rarity. good clean power cheap. one of the best deals you'll find. do i have one? no, i'm one of those jerks who likes to be different. i own an Ample Audio a240x. am i happy with it? yes. for a simple yet power amp, get the jbl. i'm not an RF hater, i just dont like em . but do what you want. but stay away from crunch (old school stuff was good but not in the last 10-15 yrs), pyramid, and boss. bottom of the barrel stuff.

 

CAMp3RO,

So what's your take on Jensen? Just curious.

AJ

 

So if i got the JBL 600.1 how would i hook it up? Should i do it like this?

 

First, thanx Crazy!

Second, AJ knows his stuff with his post on power ratings with how RF used to do it...and still do. The numbers are what the industry standard seems to be, the comp level of 14.4V. RF has lost little in the way of quality. It is that the other guys have greatly improved. For the average stereo guy, RF is the best they can buy for a decent amount of money. If you are doing comp, probably consider a brand such as Memphis, or the Power series from RF.
DO NOT confuse more power with better quality as a lot of people do. Look at your continuous power output and signal to noise ratio as well as total harmonic distortion.

As for Jensen. They are great low quality amps. Do not expect tooth rattling bass with these amps. They perform the basics when it comes to bass. They give you ok sound with ok power levels. Good amp for someone looking for a cheap setup with sound that isn't terrible.

 

No, the 2 channel is the better amp for your 2 12's.

 

The image you posted with the 2 2ohm subs would be the way to connect the 4ohm models to the punch. I would not get the 2ohm models for use with an amp that is not rated for 1ohm stable mono.

 

jensen, the stuff they sell at car part stores and walmart, still junk. better than pyramid and boss, but still on the low end. however, i saw a pretty decent review of jensen's upper model amps. i still would personally stay away, but thats just my opinion.

 

The reason rf is no good anymore is because the guy that built them now works for MTX. The type R's are very good speakers, but if you go with the dual voice coil sub your going to need a very big two channel amp. Or the best is going to be to run two mono block amps, more efficent power, a little more money but way better sound. Run 2 mtx thunder 4250d's and you will pound the lights out of your car. Just My 2 cents

 

that is like saying that mustang went to crap because whats-his-face went to chrysler.

also, you dont need to the most powerful amps you can afford (unless you have almost no money anyways) to make you system loud. a drawback to getting something powerful is a good percentage of the time, you will loss the sound quality. another thing, if your subs are too loud, you cant hear the highs. it is fun to shake the car next to you but every once in a while you may want to listen to your music without ear protection.

just a thought.

 

that will work to get a 2 ohm load since those are 2 ohm dvcs. that is probably the simplest way to do it.

 

excelent point cuno.

and put a BIG asteric next to the power state there at the end. you can not stress that enough. some people just dont listen to reason, though.

 

The best amp I have ever come across would have to be my Autotek. As Colby mentioned in an earlier post, Autotek is a little on the expensive side, but well worth it. The quality surpasses everything I have seen from an amp. Although, if your on a budget, buy a Crunch, or perhaps a Boss Overdrive.

 

Actually the guy that designed the real good RF amps of the early 90's now has his own company called Lunar. Awesome amps.

 

Look at Jl audio's new amps. there some of the best ones out there right now.

Jl audio's website
"Supply voltage can range from 11 to 14.5 volts, the range not significantly affecting power output."

Acorrding to what im reading a fosgate loses power when it loses volts unlike thease.

fosgate dampnig factor 200
JL dampning factor 500

noise ratio and distortion have much better numbers on the jl as well.

dampning factor also makes a difference. and thease are compareing 2 very similar amps from each company....those numbers look reasonable to me, right off each companies website.

 

i think i have decided to go with the JBL 600.1 and the 12" Type Rs Dual 2 ohm ones. Thanks for all the help.
Brad