Which 4 Channel Amplifier???

[antis0cial]

Hi just need some help choosing an AMP, not sure what all the ratings mean to be honest not sure if I need to be looking at the 4 Ohms or 2 Ohms rating in order for the amp to be running my 4 speakers.

They amps I have narrowed it down to are the following;

MB Quart Premium PAB 4100
MB Quart Premium PAB 4100 - 4-Channel Amplifier • MOSFET power supply • S/N Ratio: >95 dB • 24 dB subsonic filter - , Car Amplifiers, Multi-channel Amps - Sonic Electronix

Product Description:

* 4-Channel Amplifier
* Focused mass aluminium heat sink
* RMS Power Rating:
o 4 ohms: 100 watts x 4 chan.
o 2 ohms: 150 watts x 4 chan.
o Bridged, 4 ohms: 300 watts x 2 chan.
* MOSFET power supply
* Ultra-flexible and variable adjustable active crossover network
* Vario bass equalizer circuit up to +18 dB
* 24 dB subsonic filter
* Full range preamp outputs for easy daisy chaining of additional amplifiers
* MB QUART-Logo with illuminated red rectangle
* Wire concealing detachable end panels
* Frequency Response (-3 dB) : 10 Hz - 30 kHz
* Damping Factor: 200
* Signal To Noise Ratio: >95 dB
* THD: 0.05%
* Channel Separation: >70 dB
* Input Signal: 0.2 - 6.0 V
* Crossover S/W: LP.BP/Full/HP
* Variable Hi-pass / Subsonic Filter: 10 ~ 150 Hz
* Variable Low-Pass (mono 24 dB): 30 ~ 150 Hz Full range
* Bass Boost at 45 Hz: 1 ~ 9 dB
* Dimensions: 18" L x 10.4" W x 2.25" H
* 1-year Sonic Electronix warranty

Amplifier Specifications:

* Amplifier Class AB
* Number of Channels 4
* RMS Power (4 ohms) 100 watts x 4 channels
* RMS Power (2 ohms) 150 watts x 4 channels
* RMS Power (1 ohm) Not Stable
* Bridged RMS Power 300 watts x 2 channels
* Peak Power Output N/A
* Minimum Impedance Unbridged 2 ohms
* Minimum Impedance Bridged 4 ohms
* THD at Rated RMS Power 0.05%
* Speaker Level Inputs No
* Preamp Outputs Yes - 1 pair
* Built-in Crossover High-pass (HP), Low-pass (LP), Full (AP)
* High-Pass Crossover Frequency 10 - 150 Hz
* Low-Pass Crossover Frequency 30 - 150 Hz
* Subsonic Filter N/A
* Signal-to-Noise Ratio 95 dB
* Channel Separation 70 dB
* Bass Boost 0 - 9 dB
* Bass/Gain Remote Yes
* Fan Cooled No
* Fuse Rating 50A x 2



Now my other amp choice;

Response Car Amp 4x100WRMS
Jaycar Electronics

Specifications:
Power / channel @ 4ohm 14.4V: 130WRMS x 4
Power / channel @ 2ohm 14.4V: 190WRMS x 4
Power / bridged @ 4ohm 14.4V: 380WRMS x 2
Signal/Noise ratio: >90dB
Input sensitivity: 200mV to 5V
Low pass filter: 50 - 500Hz @ 12dB/octave
High pass filter: 50 - 500Hz @ 12dB/octave
Pass thru RCA: Yes
Dimensions: 400(L) x 258(W) x 50mm(D)


Price doesnt matter, They Jaycar is $299 and the MB Quart AMP Retails for $999 but I can get it from that site for $380 AUD delivered

I need them to power the following speakers;

HERTZ HSK165
HSK 165 - High-Energy - Hertz - audison

Rockford Fosgate T1693C 6x9" 3-Way Coaxial Speakers
Rockford Fosgate® - T1693C

Configuration 3-Way Full-Range
Midrange Diameter 6"x9"
Midrange Depth 3"
Tweeter Diameter .5"
Tweeter Depth n/a
Frequency Response 40Hz - 22kHz
Power Handling 110 Watts RMS
220 Watts Max
Crossover High-Pass (HP): 12dB
Sensitivity 90dB @ 1 watt/1 meter
Grilles Included Yes
Mounting Hardware Yes
Shipping Weight 9.9 Lbs.
(4.5 Kg.)


I am going to be using a JVC KD-AVX11 Head unit with a CAT10 for the VX
steering wheel controls.

Well would appreciate everyones help and suggestion as I am looking at spending from 250-400 on a 4 channel AMP to power these speakers. And really like the MB Quart but not sure on how good there AMPS are.

Thanks guys.

anti:thumbsup:

 

[azzfox]

not sure what all the ratings mean to be honest not sure if I need to be looking at the 4 Ohms or 2 Ohms rating in order for the amp to be running my 4 speakers.

the majority of car speakers are 4ohm. it usually will tell you on the back of the speaker. if not then you can use a multimeter (or a plain ohmmeter) to find out.

im too lazy to look through it all so il give a basic run-down.

*compare RMS or rated power (same thing) at same ohms as your speakers. disregard maximum power figures.
*the amp should put out equal or more power per channel compared to your speakers.
*its always best to overpower than underpower, you can adjust the 'gain' to avoid overpowering.

 

[antis0cial]

Hmmm alright? I think the Jaycar one is more powerful than the MB amp. So which would it be then? Out of the two amps I mean.

 

[azzfox]

ok I had a quick read anyway..

Jaycar amp will put out 130wrms @ 4ohm per channel

MB Quart will put out 100wrms @ 4ohm per channel

the speakers are rated at 110wrms

so yes the Jaycar amp is more powerful and wont underpower the speakers. but at 100wrms it would probably be too loud to listen to anyway so i wouldnt worry about underpowering with the MB Quart amp.

 

[antis0cial]

Alright then cool. And i guess the JayCar I can get local aswell. So I am safe that way. Probably just stick with the JayCar like you said.

Anyone else FOR or AGAINST?

 

[garfa]

azzfox, shame on you mate, you know there is FAR more than just power figures.
ok antisocial, the mb will be a far superior amp. it has less noise and probably better damping.
really power means stuff all if we are looking at quality and the effect of power on a driver.
i have not heard the mb amp, but i can say that i will sell you my jaycar 4 channel 4x130Wrms amp for $180 and i will pay the extra for the mb quart.
sort of like chaulk and cheese really. or diamonds and dog ****.........

 

[azzfox]

azzfox, shame on you mate, you know there is FAR more than just power figures.

ah come on, of course there is. but I just got the impression that the he/she was looking for something to power his/her speakers without going into much detail. if not well then sorry. thats when other people come in and have their say. plus.. I never recommended anything! I just stated the facts!

alright, bed time.. im getting grumpy

 

[antis0cial]

Thanks Garfa, So it wouldnt matter if the MB Quart is only 100w RMS and my speakers I think are 110w rms and 130w rms. I mean it wont stuff em up or anything if the MB is running em at 100w only. I just thought the Jaycar because its local the MB is 380 AUD delivered from the states rather than the 999 price tag these prix sell it in perth for. Or is there any other amp in the 250-400 price bracket someone would recommend? or is the MB basically best buy for me at the moment? Id rather have quality than just plain loud noise to be honest coz I probably wouldnt crank it past 10-15 anyways. I was just told if I get an up that is less RMS than my speakers I would stuff em up.
Sh&t this is confusing, shoulda just stuck with factory.. lol

 

[garfa]

ah come on, of course there is. but I just got the impression that the he/she was looking for something to power his/her speakers without going into much detail. if not well then sorry. thats when other people come in and have their say. plus.. I never recommended anything! I just stated the facts!

alright, bed time.. im getting grumpy

i just thought i would give you a stir because you are good for it!
ANTI: mate there is no real world difference for us between 100 and 130 Watts, only whats on paper.
the MB will be a go'er. just make sure its from a good source, dont want a fake now.

 

[azzfox]

i just thought i would give you a stir because you are good for it!

hmmm ok... lol

ANTI: mate there is no real world difference for us between 100 and 130 Watts, only whats on paper.

yeah your probably right. I think I have a problem of always looking at the technical side of things those power figures might not even be 100% accurate anyway give or take.