quality amp for $300 or less?

[adulbrich 5,000+ posts]

to be honest, get the D2 version and get the JBL amp thats on sale, that JBL amp does power at 2 ohms and its very underrated along with having good sound quality. Power at 2 ohms is a lot less taxing on your vehicle's electrical system than 1 ohm.

Not true. If it is an amp made to run at 2 ohms, it's no different than running a 1 ohm amp at 1 ohm.

i went d2's.... it was a tough one haha

Why??

 

[brafferty]

Not true. If it is an amp made to run at 2 ohms, it's no different than running a 1 ohm amp at 1 ohm.


Why??

right before i clicked the confirm you say hes wrong //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif d4's? if his points not true than id prefer d4s

 

[adulbrich 5,000+ posts]

right before i clicked the confirm you say hes wrong //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif d4's? if his points not true than id prefer d4s

D4's. So many more amp options, and drain on electrical system is the same for both.

I have to go right now, but can explain why later

 

[C1500martin 10+ year member]

right before i clicked the confirm you say hes wrong //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif d4's? if his points not true than id prefer d4s

im yet to see that proven, in my head though it makes NO sense. an amplifier is made to support a certain impedance load. YES if you havea soundqubed 2200 for example at 1 ohm it does 2200, at 2 ohms like 1600 (i dont remember) well no duhh the electrical load will be less! BUT if you have amp (A) that does 1800 at 2 ohms, and amp (B) that does 1800 at 1 ohm, shouldnt the current pull be the same? that whole 2 ohms is less stressfull than 1 ohm is a myth and a bad one. if that was the case does that mean the taramps 2 ohm version of their amps are better than the 1 ohm version? becasue theres a company that figured it out for the consumer, they made 1 and 2 ohm versions of the same amp. i might be wrong but this is one of those situations where i very highly doubt it.

 

[C1500martin 10+ year member]

THIS IS AN EXAMPLE TO SUPPORT MY IDEA

taramps hd800-2ohms

Number of Channels: 01

Max. Output Power @ 13,8 VDC - 2 OHM: 959W RMS

Max. Output Power @ 13,8 VDC - 4 OHMS: 547W RMS

Max. Output Power @ 13,8 VDC - 8 OHMS: 297W RMS

Max. Output Power @ 12,6 VDC - 2 OHM: 800W RMS

Max. Output Power @ 12,6 VDC - 4 OHMS: 456W RMS

Max. Output Power @ 12,6 VDC - 8 OHMS: 248W RMS

Input Sensitivity: 250mV @ (-9,78 dBm)

Total Harmonic Distortion (THD): 0,3%

Signal Noise / Ratio: >95dB

Damping Factor: 250

Frequency Response: 10Hz to 22kHz

Crossover:

H.P.F (High Pass Filter): 10Hz to 50Hz(-12dB/Octave) Variable

L.P.F (Low Pass Filter): 50Hz to 22kHz(-12dB/Octave) Variable

Bass Boost:0 to 10dB (50Hz)

Input Impedance: 18K OHMS

Protection System: Short into Output / Power Supply High/Low

Minimum Supply Voltage: 10,5VDC

Maximum Supply Voltage: 16VDC

Idle Consumption: 1,10 Amp.

Musical Maximum Consumption @ 12,6VDC: 38,5 Amp.

Sinusoidal Signal Maximum Consumption (1KHz) @ 12,6VDC: 77 Amp.

Dimension (LxAxP): 226 x 55 x 187mm

Weight: 1,46kg

taramps hd 800-1 ohm

Number of Channels: 01

Max. Output Power @ 13,8 VDC - 1 OHM: 959W RMS

Max. Output Power @ 13,8 VDC - 2 OHMS: 547W RMS

Max. Output Power @ 13,8 VDC - 4 OHMS: 297W RMS

Max. Output Power @ 12,6 VDC - 1 OHM: 800W RMS

Max. Output Power @ 12,6 VDC - 2 OHMS: 456W RMS

Max. Output Power @ 12,6 VDC - 4 OHMS: 248W RMS

Input Sensitivity: 250mV @ (-9,78 dBm)

Total Harmonic Distortion (THD): 0,3%

Signal Noise / Ratio: >95dB

Damping Factor: 250

Frequency Response: 10Hz to 22kHz

Crossover:

H.P.F (High Pass Filter): 10Hz to 50Hz(-12dB/Octave) Variable

L.P.F (Low Pass Filter): 50Hz to 22kHz(-12dB/Octave) Variable

Bass Boost: 0 to 10dB (50Hz)

Input Impedance: 18K OHMS

Protection System: Short into Output / Power Supply High/Low

Minimum Supply Voltage: 10,5VDC

Maximum Supply Voltage: 16VDC

Idle Consumption: 1,10 Amp.

Musical Maximum Consumption @ 12,6VDC: 38,5 Amp.

Sinusoidal Signal Maximum Consumption (1kHz) @ 12,6VDC: 77 Amp.

Dimensions (LxAxP): 226 x 55 x 187mm

Weight: 1,46kg

SAME ******* SPECS

 

[los33 10+ year member]

THIS IS AN EXAMPLE TO SUPPORT MY IDEA
taramps hd800-2ohms

Number of Channels: 01

Max. Output Power @ 13,8 VDC - 2 OHM: 959W RMS

Max. Output Power @ 13,8 VDC - 4 OHMS: 547W RMS

Max. Output Power @ 13,8 VDC - 8 OHMS: 297W RMS

Max. Output Power @ 12,6 VDC - 2 OHM: 800W RMS

Max. Output Power @ 12,6 VDC - 4 OHMS: 456W RMS

Max. Output Power @ 12,6 VDC - 8 OHMS: 248W RMS

Input Sensitivity: 250mV @ (-9,78 dBm)

Total Harmonic Distortion (THD): 0,3%

Signal Noise / Ratio: >95dB

Damping Factor: 250

Frequency Response: 10Hz to 22kHz

Crossover:

H.P.F (High Pass Filter): 10Hz to 50Hz(-12dB/Octave) Variable

L.P.F (Low Pass Filter): 50Hz to 22kHz(-12dB/Octave) Variable

Bass Boost:0 to 10dB (50Hz)

Input Impedance: 18K OHMS

Protection System: Short into Output / Power Supply High/Low

Minimum Supply Voltage: 10,5VDC

Maximum Supply Voltage: 16VDC

Idle Consumption: 1,10 Amp.

Musical Maximum Consumption @ 12,6VDC: 38,5 Amp.

Sinusoidal Signal Maximum Consumption (1KHz) @ 12,6VDC: 77 Amp.

Dimension (LxAxP): 226 x 55 x 187mm

Weight: 1,46kg

taramps hd 800-1 ohm

Number of Channels: 01

Max. Output Power @ 13,8 VDC - 1 OHM: 959W RMS

Max. Output Power @ 13,8 VDC - 2 OHMS: 547W RMS

Max. Output Power @ 13,8 VDC - 4 OHMS: 297W RMS

Max. Output Power @ 12,6 VDC - 1 OHM: 800W RMS

Max. Output Power @ 12,6 VDC - 2 OHMS: 456W RMS

Max. Output Power @ 12,6 VDC - 4 OHMS: 248W RMS

Input Sensitivity: 250mV @ (-9,78 dBm)

Total Harmonic Distortion (THD): 0,3%

Signal Noise / Ratio: >95dB

Damping Factor: 250

Frequency Response: 10Hz to 22kHz

Crossover:

H.P.F (High Pass Filter): 10Hz to 50Hz(-12dB/Octave) Variable

L.P.F (Low Pass Filter): 50Hz to 22kHz(-12dB/Octave) Variable

Bass Boost: 0 to 10dB (50Hz)

Input Impedance: 18K OHMS

Protection System: Short into Output / Power Supply High/Low

Minimum Supply Voltage: 10,5VDC

Maximum Supply Voltage: 16VDC

Idle Consumption: 1,10 Amp.

Musical Maximum Consumption @ 12,6VDC: 38,5 Amp.

Sinusoidal Signal Maximum Consumption (1kHz) @ 12,6VDC: 77 Amp.

Dimensions (LxAxP): 226 x 55 x 187mm

Weight: 1,46kg

SAME ******* SPECS

The electrical resistance is what causes higher ohm loads to have less power.

In the case of brazillian amps, they made amps capable of producing the same power at a higher ohm load because of the rail design.

2 ohm and 1 ohm make no difference on the electrical system, but it does on the amp.

The koreans/chinese/others/usa amps can be made the same, but the amp designs would make costs higher to make a 1 ohm amp do the same as a 2 ohm amp.

Try doing 1 ohm for even a second on the taramp 2 ohm version and you will smoke it.

Sent from my Z970 using Tapatalk

 

[C1500martin 10+ year member]

The electrical resistance is what causes higher ohm loads to have less power.
In the case of brazillian amps, they made amps capable of producing the same power at a higher ohm load because of the rail design.

2 ohm and 1 ohm make no difference on the electrical system, but it does on the amp.

The koreans/chinese/others/usa amps can be made the same, but the amp designs would make costs higher to make a 1 ohm amp do the same as a 2 ohm amp.

Try doing 1 ohm for even a second on the taramp 2 ohm version and you will smoke it.

Sent from my Z970 using Tapatalk

oh yea i know ill smoke it becasue its not designed to work at a lower ohm load.

but as you said the ohm load makes no dfifference on the electrical system. i keep seeing that being said on here and its BS

 

[los33 10+ year member]

oh yea i know ill smoke it becasue its not designed to work at a lower ohm load.
but as you said the ohm load makes no dfifference on the electrical system. i keep seeing that being said on here and its BS

It may seem like it to others only because if an amp is rated X amount at 1 ohm and pulls 145 amps at 1 ohm, then in most non brazillian style amps it will still pull 145 amps, but on 2 ohms at full gain on a sine wave.

In reality it pulls the same amperage, but with less power output.

Sent from my Z970 using Tapatalk

 

[adulbrich 5,000+ posts]

The electrical resistance is what causes higher ohm loads to have less power.
In the case of brazillian amps, they made amps capable of producing the same power at a higher ohm load because of the rail design.

2 ohm and 1 ohm make no difference on the electrical system, but it does on the amp.

The koreans/chinese/others/usa amps can be made the same, but the amp designs would make costs higher to make a 1 ohm amp do the same as a 2 ohm amp.

Try doing 1 ohm for even a second on the taramp 2 ohm version and you will smoke it.

Sent from my Z970 using Tapatalk

The bolded part is false. There is a guy on CACO who ran HD 8000 2 ohm versions at 1 ohm for comps.

As far as the ohm load myth, I came across this while I was researching for my English paper on Full and Half bridge amplifier topology.

Amplifier power supplies pull high amperage from your car's low voltage system. They then convert it to a higher voltage on the inside of the amplifier (voltage rails).

To get the same wattage at a higher impedance, voltage needs to be greater. 2 ohm amplifiers put out a higher output voltage than one ohm amplifiers. However, internal components are not as beefy, so they can't put out as much current (amperage).

Amperage times voltage equals watts. A x V = W. They can be in different ratios. A higher impedance restricts current flow. Lower impedances allow more current to flow.

One ohm amplifier power supplies just step up the voltage less. Both have to pull the same amount of current from your vehicle's electrical system. There is no free power.

Amplifier efficiencies vary, but it is less based on the amplifier's lowest rated impedance.

 

[los33 10+ year member]

The bolded part is false. There is a guy on CACO who ran HD 8000 2 ohm versions at 1 ohm for comps.

As far as the ohm load myth, I came across this while I was researching for my English paper on Full and Half bridge amplifier topology.

Amplifier power supplies pull high amperage from your car's low voltage system. They then convert it to a higher voltage on the inside of the amplifier (voltage rails).

To get the same wattage at a higher impedance, voltage needs to be greater. 2 ohm amplifiers put out a higher output voltage than one ohm amplifiers. However, internal components are not as beefy, so they can't put out as much current (amperage).

Amperage times voltage equals watts. A x V = W. They can be in different ratios. A higher impedance restricts current flow. Lower impedances allow more current to flow.

One ohm amplifier power supplies just step up the voltage less. Both have to pull the same amount of current from your vehicle's electrical system. There is no free power.

Amplifier efficiencies vary, but it is less based on the amplifier's lowest rated impedance.

Very good explanation, only part that is half right is the part of voltage step up on bridge rails. Not all are designed to step up or do direct current, it is all specifically on manufacture.

Also the part you bolded can be done in burps and short uses, but in long term daily use and electrical system that tends to fluctuate below 12.5 will kill the amp in seconds.

Sent from my Z970 using Tapatalk

 

[adulbrich 5,000+ posts]

Very good explanation, only part that is half right is the part of voltage step up on bridge rails. Not all are designed to step up or do direct current, it is all specifically on manufacture.
Also the part you bolded can be done in burps and short uses, but in long term daily use and electrical system that tends to fluctuate below 12.5 will kill the amp in seconds.

Sent from my Z970 using Tapatalk

What amps don't boost the voltage for their internal rails? I know there's some weird Rockford stuff and the Kicker Warhorse is also different in many ways. Not sure how those amps work.

His electrical was good, so I don't think he hit 12's. It wasn't burps. I think it may have been bass race, but I'm not 100% sure on that. I just know it wasn't burp-only

 

[C1500martin 10+ year member]

The bolded part is false. There is a guy on CACO who ran HD 8000 2 ohm versions at 1 ohm for comps.

As far as the ohm load myth, I came across this while I was researching for my English paper on Full and Half bridge amplifier topology.

Amplifier power supplies pull high amperage from your car's low voltage system. They then convert it to a higher voltage on the inside of the amplifier (voltage rails).

To get the same wattage at a higher impedance, voltage needs to be greater. 2 ohm amplifiers put out a higher output voltage than one ohm amplifiers. However, internal components are not as beefy, so they can't put out as much current (amperage).

Amperage times voltage equals watts. A x V = W. They can be in different ratios. A higher impedance restricts current flow. Lower impedances allow more current to flow.

One ohm amplifier power supplies just step up the voltage less. Both have to pull the same amount of current from your vehicle's electrical system. There is no free power.

Amplifier efficiencies vary, but it is less based on the amplifier's lowest rated impedance.

THANK YOU!

I knew that was wrong but i just didnt know why and now i do lol.

 

[adulbrich 5,000+ posts]

THANK YOU!I knew that was wrong but i just didnt know why and now i do lol.

No problem. The English paper allowed me to do a lot of car audio searching for fun during "research" time, lol. Actually learned something during school.. J/K

 

[Jeffdachef 5,000+ posts]

The bolded part is false. There is a guy on CACO who ran HD 8000 2 ohm versions at 1 ohm for comps.

As far as the ohm load myth, I came across this while I was researching for my English paper on Full and Half bridge amplifier topology.

Amplifier power supplies pull high amperage from your car's low voltage system. They then convert it to a higher voltage on the inside of the amplifier (voltage rails).

To get the same wattage at a higher impedance, voltage needs to be greater. 2 ohm amplifiers put out a higher output voltage than one ohm amplifiers. However, internal components are not as beefy, so they can't put out as much current (amperage).

Amperage times voltage equals watts. A x V = W. They can be in different ratios. A higher impedance restricts current flow. Lower impedances allow more current to flow.

One ohm amplifier power supplies just step up the voltage less. Both have to pull the same amount of current from your vehicle's electrical system. There is no free power.

Amplifier efficiencies vary, but it is less based on the amplifier's lowest rated impedance.

Thats correct however you did not factor in efficiency. The lower you wire, efficiency goes out the window, they may be pulling the same current but the lower ohm load will be a lot less efficient.

 

[The Camry]

what about the regulated power supplies(or whatever it is)on the alpine amps that give you the same output regardless of ohm load?

Personally im fine with a D2 woofer because unless you really are going for pure spl. One really good Sub on 2k or less is just fine. So getting a 2k amp on 1ohm is just dandy.

I feel like Keep_hope_alive mentioned something about 2 subs having wave interference or something along those lines. SQ wise.