Power for 15" Type R

[Accordallusion]

I have a single 15" type r sub with 4+4 ohm dual voice coil which i will wire parallel for 2 ohms. I want an amp that will power the sub well and can take 2 ohms. The rms on it is 500 and max is 1500. I am on a budget and have been looking at jbl, lanzar, power acoustik, and alpine. Which would you reccomend? Would a jbl 600.1 under power it? Are lanzar or power acoustiks any good?

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[Mr. Loki 5,000+ posts]

the jbl is alwayz nice it is underated most would say, but I dont know much on that, as for the lanzar amps they are pretty good for the price. I have had troubles with the power acoustic sapphire amps also the fire and ice series. If you want a good amp for the price check out the boss ripper series and crunch maybe even cyclone audio

 

[Wonderbread 5,000+ posts]

go with teh JBL..

will do great for it...

Lanzar amps are also pretty decent for teh cash..

the Vide series in particualr..

although you will not find much for better prices than the JBl's

 

[Mr. Loki 5,000+ posts]

yea the vibe is pretty good. Jbl though for sure

 

[indosia 10+ year member]

I was powering a 15 type r with 500 watts rms @ 1 ohm. I traded it because 500 watts was'nt enough to make it hit hard. If you're goin with the jbl, I would consider the 1200 watt amp.

 

[Wonderbread 5,000+ posts]

what are you smoking?

are you an alpine dealer? do you jsut want him to have to buy another sub?

true, they ahve great power handling, one ahs taken 2100 watts peak in a ealed room as the box, but 1200 RMS watts will fry that Type R like nobodies business...

try the 600.1

 

[rco8786 10+ year member]

Originally posted by Accordallusion I have a single 15" type r sub with 4+4 ohm dual voice coil which i will wire parallel for 2 ohms. I want an amp that will power the sub well and can take 2 ohms. The rms on it is 500 and max is 1500. I am on a budget and have been looking at jbl, lanzar, power acoustik, and alpine. Which would you reccomend? Would a jbl 600.1 under power it? Are lanzar or power acoustiks any good?

if it's 500 rms then even if the jbl wasnt underrated it still wouldn't underpower. just don't be a volume master w/ the gain and you'll be good

 

[Wonderbread 5,000+ posts]

cmon now guys, the 600.1 is his best choice...

he has a dual 4 ohm sub, gving him 2 and 8 ohm mono wiring options...

JBL 1200.1 - 1200 watts @ 2 ohms, assumed 300 watts at 8 ohms

JBL 600.1 - 600 watts at 2 ohms, assumed 150 @8 ohms..

the JBL 600.1 wired in parallel with his DVC 4 ohm sub to a 2 ohm laod would be the ideal choice.

 

[indosia 10+ year member]

Originally posted by Wonderbread what are you smoking?

are you an alpine dealer? do you jsut want him to have to buy another sub?

true, they ahve great power handling, one ahs taken 2100 watts peak in a ealed room as the box, but 1200 RMS watts will fry that Type R like nobodies business...

try the 600.1

No, I was powering a dual 2 ohm 15 type r with 500 watts @1 ohm. It sounded good, but i could tell it needed more power. Maybe it's because the 2+2 ohm version has more x-max. You may not need 1200 watts, but it won't fry your sub.

It's only 1200 watts rms if you drive the amp to full power. By setting the gain low he could power the sub without distortion or amp clipping. I don't recommend buying a JBL amp, considering you're going to be listening to it every time you drive.

 

[Wonderbread 5,000+ posts]

GAIN DOENST LIMIT TO POWER OUTPUT OF THE AMP

stop thinking that!

dammit some peoples children...

 

[indosia 10+ year member]

Originally posted by Wonderbread GAIN DOENST LIMIT TO POWER OUTPUT OF THE AMP

stop thinking that!

dammit some peoples children...

Most head units cannot drive an amp to full power with the gain set low. Some amps will put out no power at all with the gain turned all the way down.

 

[Wonderbread 5,000+ posts]

http://www.eatel.net/~amptech/elecdisc/caraudio.htm

Amplifier Gain Controls:

Contrary to popular belief, an amplifiers gain control does not determine the maximum power that an amplifier can produce. As long as the preamp/drive signal has sufficient level, the amplifier will produce its maximum power output level. The gain controls are used to match the amplifer's gain to the gain of the other amplifiers in the system (in the case of a multi-amp system). The gain controls also allow you to match the amplifier(s) to the head unit. Not all head units have the same maximum preamp output voltage. Some head units are capable of producing 9 vrms out while others are only capable of 1.5 vrms out.

Please note that a head unit will reach its maximum output level (clipping) well before the volume control reaches the upper end of its range (usually at a point of 85-90% of its maximum range). This is especially true of tape decks, not because the audio section is of lesser quality but because some tapes are recorded at lower levels than others and the manufacturer must design the deck to be able to produce a sufficient output level with virtually any tape.

Basically, a gain jsut matches the sensitivity of the SIGNAL, so basically, the better the HU, (the higehr the HU voltage) the lower your ghain ahs to be set.

the amp always puts out full power... its just not getting enough signal to make SOUND

 

[indosia 10+ year member]

Originally posted by Wonderbread http://www.eatel.net/~amptech/elecdisc/caraudio.htm

Amplifier Gain Controls:

Contrary to popular belief, an amplifiers gain control does not determine the maximum power that an amplifier can produce. As long as the preamp/drive signal has sufficient level, the amplifier will produce its maximum power output level. The gain controls are used to match the amplifer's gain to the gain of the other amplifiers in the system (in the case of a multi-amp system). The gain controls also allow you to match the amplifier(s) to the head unit. Not all head units have the same maximum preamp output voltage. Some head units are capable of producing 9 vrms out while others are only capable of 1.5 vrms out.

 

Please note that a head unit will reach its maximum output level (clipping) well before the volume control reaches the upper end of its range (usually at a point of 85-90% of its maximum range). This is especially true of tape decks, not because the audio section is of lesser quality but because some tapes are recorded at lower levels than others and the manufacturer must design the deck to be able to produce a sufficient output level with virtually any tape.

 

Basically, a gain jsut matches the sensitivity of the SIGNAL, so basically, the better the HU, (the higehr the HU voltage) the lower your ghain ahs to be set.

 

the amp always puts out full power... its just not getting enough signal to make SOUND

Many head units have 2 volt preouts. Most amps do not reach full power with 2 volts unless the gain is turned up about 1/2 way. So unless your head unit has 9 volt preouts, you will need to turn up the gain to get max power from the amp. Maybe you should read something before copying it and pasting it in your post.

 

[Wonderbread 5,000+ posts]

why dont YOU read it...

amps ALWAYS PUT OUT FULL POWER

its the signal that changes..

witha lwoer voltage preout, the INPUT SENSITIVTY AKA GAIN must be turned up to math that of the HU's output..

it DOES NOT CHANGE THE POWER OF THE AMP!!! all it does is increase the sensitivity of the amplifiers input channels...

basically, you turn up the gain, it gets more signal from the deck, not puts out more power...

 

[lil roberto 10+ year member]

All that sh*t is pretty confusing, i do most of the wirings and installs for all my buddies and people around where i live who dont wanna spend 200 dollars for supposed professionals to do the same work, BUT i dotn have a clue what all that crap was about, but since you guys all brought this up what would be a good gain to set an amp at to get the best sound out of it whatever the gain may do????

Roberto...