Pyramid amp

[Charlescrs6]

yeah, thinking about buying a 1000W x2 channel amp for a 12" alpine type R. First question is, is it a good amp? And second is can you hook up both channels to the sub or would you only hook up 1 channel to it and only be running 500 watts?? TIA

[actlsub9]

Depends on which pyramid amp your talking about and which 12" type R sub you have.

[Five1ohA4]

I wouldn't purchase that amp. Pyramid I beleive is on the lower end of amplifiers and they don't offer true wattage or really clean power. How much are you wanting to spend on a amp and also what is your speaker rated at RMS wattage? Is your speaker a dual 4ohm vc or a dual 2ohm vc?

[HamidsVikes]

Stay away from that amp... Pyramid sucks...
Alpine Typr R sub is nioce, I use to have it.
I recommend Power Acoustik (MOFO 12 sub) and any of thier D -line amps...
the set up is sick, and for the price you cant get any better.
Best sounding bass that I have ever had, and I had way more expensive setups in the past.

check out their site.
http://www.poweracoustik.com/pa2006/product.htm

[Charlescrs6]

ok its 1500 watts RMS 12" Alpine Type R 4 OHMS.... think that's right. I need a CHEAP amp because i'm REALLY short on cash, or if someone can throw me a good sub/amp combo that would be cool too (friend is selling the alpine, dont HAVE to buy it)... thanks

[actlsub9]

ok its 1500 watts RMS 12" Alpine Type R 4 OHMS.... think that's right. I need a CHEAP amp because i'm REALLY short on cash, or if someone can throw me a good sub/amp combo that would be cool too (friend is selling the alpine, dont HAVE to buy it)... thanks

Alpine Type R's are a good value for their price.

You need to decide what enclosure it will be going in. From there you can determine what the power handling will be, and can choose an amplifier that is a good match.

[Charlescrs6]

Alpine Type R's are a good value for their price.

You need to decide what enclosure it will be going in. From there you can determine what the power handling will be, and can choose an amplifier that is a good match.

hmm its a square enclosure that my friend bought off of crutchfield.com or something like that... its just a box no other weird shapes?? Thats not what you're asking is it...

[actlsub9]

hmm its a square enclosure that my friend bought off of crutchfield.com or something like that... its just a box no other weird shapes?? Thats not what you're asking is it...

Yes, it is.

Recommended enclosure specs for your sub are listed in here... http://support.alpine-usa.com/produc..._SWR-1222D.PDF

[Charlescrs6]

Yes, it is.

Recommended enclosure specs for your sub are listed in here... http://support.alpine-usa.com/produc..._SWR-1222D.PDF

thanks, so still wondering on a good amp.. for cheap like hopefully less than 150? MAYBE less than 200?

[actlsub9]

thanks, so still wondering on a good amp.. for cheap like hopefully less than 150? MAYBE less than 200?

If you like brand matching I am sure Alpine makes a mono class D 500W RMS amplifier for around $150.

[Charlescrs6]

ok so here's the deal, a guy w/ a B5 is selling a 12" ALpine type R with the pyramid amp and capacitor for 150 bucks. I see that I can't go wrong with that.. right? No enclosure but I think i can pick one of those up at circuit city or w.e right?

[Five1ohA4]

Ok so you have the alpine type R 12" in 4ohm. Your speaker is a dual 4ohm voice coil that is rated at 1500 watts max and 500 watts rms ( 250watts per voice coil ). You do not want to run the speaker at max wattage, you need to find a single channel mono amplifer rated at around 500 to maybe 600 watts rms. Alpine has a amp that is rated at 500watts at a 2ohm load into a single channel ( mono amp ) for about 200 or a little less on line. Since you have a dual 4 ohm speaker you can bridge the dual 4ohms on the speaker to 2ohms, this will make the amp work at 2ohms thus giving you more power. The model number of the amp is MRP-500 and can be seen here. http://www.sonicelectronix.com/viewc...=14&new_page=1

[Charlescrs6]

Ok so you have the alpine type R 12" in 4ohm. Your speaker is a dual 4ohm voice coil that is rated at 1500 watts max and 500 watts rms ( 250watts per voice coil ). You do not want to run the speaker at max wattage, you need to find a single channel mono amplifer rated at around 500 to maybe 600 watts rms. Alpine has a amp that is rated at 500watts at a 2ohm load into a single channel ( mono amp ) for about 200 or a little less on line. Since you have a dual 4 ohm speaker you can bridge the dual 4ohms on the speaker to 2ohms, this will make the amp work at 2ohms thus giving you more power. The model number of the amp is MRP-500 and can be seen here. http://www.sonicelectronix.com/viewc...=14&new_page=1

sweet thanks, what do i need to "bridge" it to 2 ohms on the amp?

[actlsub9]

sweet thanks, what do i need to "bridge" it to 2 ohms on the amp?

Speaker wire. You run it in parallel instead of in series. It's not really bridging, that term usually refers to something else.

[actlsub9]

If you look on the link I gave you before, they have wiring diagrams.

[Charlescrs6]

Speaker wire. You run it in parallel instead of in series. It's not really bridging, that term usually refers to something else.

word, I found that the previous owner of my b6 had a sub/amp installed So i already have all of the wiring to the trunk. what do you guys think about this one: http://www.circuitcity.com/ccd/produ...ized+HP+Module

[actlsub9]

word, I found that the previous owner of my b6 had a sub/amp installed So i already have all of the wiring to the trunk. what do you guys think about this one: http://www.circuitcity.com/ccd/produ...ized+HP+Module

Not what you are looking for. That is 170W x2 at 2ohms.

[Five1ohA4]

To bridge it from dual 4ohms to 2 ohms is pretty straight foward. You should have 2 positive and 2 negative terminals on your speaker for connecting the wires to. You wire them in parallel like mentioned above. You take the one + terminal on the speaker and connect it to the other + terminal and then connect it to the + input on the amp. Do the exact same for the negative side, - terminal post to - terminal post then connect it to the - input on the amp.

[Charlescrs6]

Not what you are looking for. That is 170W x2 at 2ohms.

rats, do they cell that Alpine one at best buy? And do you think i should just buy that guys package and then upgrade the amp later or jsut not even waste my time? I suck at this

[actlsub9]

rats, do they cell that Alpine one at best buy? And do you think i should just buy that guys package and then upgrade the amp later or jsut not even waste my time? I suck at this

I think BB sells it.

[Charlescrs6]

I think BB sells it.

ok sweet so word is the guy thats selling the package has the dual 2 OHMS type R. Not sure if that's better than the 4 OHMS but hmm. If i was to just get his sub what amp should I get for that. once again, really sorry for all the ?'s.

[Five1ohA4]

rats, do they cell that Alpine one at best buy? And do you think i should just buy that guys package and then upgrade the amp later or jsut not even waste my time? I suck at this

No worries man, I don't know if best buy would sell it or not but usuallty best buy is pricey on alot of their things. Check out that link I gave you or check around online as you will probably get a much better deal. Thats your call if you want to buy that package but you need to find out what the rms wattage on that pyramid amp and if it can handle a 2ohm load ( most amps now days do this ). If you can buy the speaker seperate from him at a good price and then purchase another amp might be ideal but its you call.

[actlsub9]

ok sweet so word is the guy thats selling the package has the dual 2 OHMS type R. Not sure if that's better than the 4 OHMS but hmm. If i was to just get his sub what amp should I get for that. once again, really sorry for all the ?'s.

Well if its dual 2 ohms that changes everything. That amp is not stable at 1 ohm so you have to wire it to 4 ohms. At 4 ohms that amp is rated at 300W. I would recommend something with 500W.

[Charlescrs6]

Well if its dual 2 ohms that changes everything. That amp is not stable at 1 ohm so you have to wire it to 4 ohms. At 4 ohms that amp is rated at 300W. I would recommend something with 500W.

so still a 1 channel right? So I should be looking for something 1 channel at 500w RMS or more correct?

[actlsub9]

so still a 1 channel right? So I should be looking for something 1 channel at 500w RMS or more correct?

Yes, you need 500W 1 channel stable at 1 ohm.

[Charlescrs6]

Yes, you need 500W 1 channel stable at 1 ohm.

then I would bridge it to 4 ohms right? gosh this stuff is confusing for a noob like me

[Five1ohA4]

so still a 1 channel right? So I should be looking for something 1 channel at 500w RMS or more correct?

Greg is right, it changes everything and you are correct. You need to either find a mono amp rated around 500w rms @ 4ohms or a amp thats is stable down to 1ohm (you would still wire it in parallel to achieve a 1ohm 1ohm load) and for a goof amp stable down to 1ohm it can get a little expensive.

[Charlescrs6]

"Pyramid PB736GX 2 Channel MOSFET Amplifier * 500 Watts x 2 Output * 1000 Watts x 1 Bridged Output * Variable Hi/Low Electronic Crossover Network * Variable Bass Boost 0- +18 dB @ 60Hz * Variable Input Level Gain Control * Remote Turn On/Off * Gold Plated RCA Inputs * Power ON LED Indicator * LED Protection Indicator * Remote Bass Boost * S/N Ratio: 95dB * THD:< 0.04% * Thermal, Overload, Short Circuit Protection * Anti-Thump Turn-On * Dimensions:10.9""W x3.2""H x 12""L"

Thats the AMp i'm looking at for the 12" type R 2 Ohms.. whatcha guys think? Will I need a capacitor with this?

[actlsub9]

then I would bridge it to 4 ohms right? gosh this stuff is confusing for a noob like me

You are not bridging anything.

You have a dual 2 ohm sub.

You can wire it to 1 ohm or 4 ohm.

Therefore you need an amp that is 500W at 1 ohm, or an amp that is 500W at 4ohm.

[Charlescrs6]

You are not bridging anything.

You have a dual 2 ohm sub.

You can wire it to 1 ohm or 4 ohm.

Therefore you need an amp that is 500W at 1 ohm, or an amp that is 500W at 4ohm.

i see i see.. once again.. excuse my ignorance

[Five1ohA4]

i see i see.. once again.. excuse my ignorance

Actually thats probably my fault as Ive used the term bridging in my posts but yeah, Greg is right your not technically bridging.

[Charlescrs6]

"Pyramid PB736GX 2 Channel MOSFET Amplifier * 500 Watts x 2 Output * 1000 Watts x 1 Bridged Output * Variable Hi/Low Electronic Crossover Network * Variable Bass Boost 0- +18 dB @ 60Hz * Variable Input Level Gain Control * Remote Turn On/Off * Gold Plated RCA Inputs * Power ON LED Indicator * LED Protection Indicator * Remote Bass Boost * S/N Ratio: 95dB * THD:< 0.04% * Thermal, Overload, Short Circuit Protection * Anti-Thump Turn-On * Dimensions:10.9""W x3.2""H x 12""L"

Thats the AMp i'm looking at for the 12" type R 2 Ohms.. whatcha guys think? Will I need a capacitor with this?

Reposting this.. seemed to have gotten lost

[Five1ohA4]

Thats a 2 channel amp and its over rated for the speaker you want to get. Is this the same set up your friend has or is still running? You would be better off going with a mono amp correctly rated at the subs specs.

[Five1ohA4]

Is the amp rated at 1000watts @ 4, 2, or 1ohm?

[Charlescrs6]

Thats a 2 channel amp and its over rated for the speaker you want to get. Is this the same set up your friend has or is still running? You would be better off going with a mono amp correctly rated at the subs specs.

that's the one the guy is selling with the Alpine Type R with 2 ohms, so I'm assuming he used them together previously