I currently have a Clarion APX640.4 and looking at the stats I cant seem to figure out at which impedance it gives out the 80W x 4 RMS
I'd getting 4 JBL C608GTi - II Speakers and was thinking of upgrading to the JBL PX300.4 amplifier.
I dont really understand the whole 2 / 4 ohm options on the amplifiers...I assume that if you have 4 ohm speakers the amp will produce the 4 ohm stats?
Following are the stats of the speakers and the two amps. Could someone please post the wattage that I would be getting out of each amp playing these speakers? And maybe then recommend whether or not its worth the amp upgrade or not?
Speakers:
Component Systems
GTi Series
C608GTI MKII
SPECIFICATIONS
General
Power Handling, RMS 150 Watts
Power Handling, Peak 600 Watts
Frequency Response (±3dB) 50Hz - 21kHz
Sensitivity (2.83V @ 1m) 89dB
Impedance 4 Ohms
Crossover Frequency(ies) 3.5kHz, 24dB/oct
Mounting Depth 2-11/16" Woofer, 1-1/8" Tweeter
https://www.jbl.com/car/products/product_detail.aspx?prod=C608GTI%20MKII&Language=ENG&Country=US&Region=USA&cat=COS&ser=GTI
Clarion APX640.4
Maximum Power Output - 640
Continuous Power Output - 80x4
THD @Rated Output (%) - <.05%
Sound to Noise Ration (A wtg) - >110dB
Frequency Response (+/-1dB) - 10Hz-50kHz
Line Level Input Sensitivity - 200mV-8V
Speaker Level Input Sensitivity - 400mV to 16V
Input Impedance - Low Level - 12k Ohms
High Level - 395 Ohms
Output Impedance - 2 Ohms Stereo / 4 Ohms Bridged
Power Series
PX300.4
SPECIFICATIONS
General
Power Output 123,5W x 4 into 4 ohms
169W x 4 into 2 ohms
358W x 2 into 4 ohms, bridged
Max Power 600W Peak x 2
Signal-to-Noise Ratio >95dB
Total Harmonic Distortion 0.04%
Frequency Response 10Hz - 45kHz ±1dB
Built-in variable electronic crossover with selectable slope
Dynamic Bass Optimization™ (DBO) circuit
Preamp outputs
Differential inputs
Internal-lighting-ready
Direct-Connect
Dimensions (H x W x D) 312mm x 432mm x 66mm
https://www.jbl.com/car/products/product_detail.aspx?prod=PX300.4/230&Language=ENG&Country=GB&Region=EUROPE&cat=AMP&ser=POS
Your final impedance load will depend on how many speakers, the impedance of each speaker and how you wire them. You should take a look at the new Arc Audio KS Minis. There amazingly small and provide ample power.
Well if you ran each speaker to a seperate channel then the final impedance load would be 4 ohms for each speaker. So that means you would get what ever the rated output is x4 at 4 ohms.
Ok but how about the Clarion amp when it says continuous power output of 80 x 4.
Im running one speaker per channel...4 ohm speakers...however it ways 2 Ohm stereo and 4 ohm bridged...so...my question is...with the clarion amp and those speakers how much wattage can I expect from each speaker?
Continuous Power Output - 80x4
Output Impedance - 2 Ohms Stereo / 4 Ohms Bridged
Each channel of the amp will have a 4 ohm load on it. The 4 X 80 you are talking about, is that into 2 ohms or into 4. Whatever it is rated at into 4 ohm stereo, that is what you will have.
See thats the problem that I am currently having...I cant find any other specs on the amp than what I have posted...I have a PDF file for the amp and it doesnt say anything other than what I posted...This is why I am confused...
it says
Output Impedance - 2 Ohms Stereo / 4 Ohms Bridged
does that mean that it only runs at 2 Ohms Stereo and to get 4 Ohms that the amp must be bridged...I have no idea...I dont even really know what Bridged means...
I am trying to figure out how much wattage I will get out of this amp with 4 - 4 ohm speakers...but my experience with amps is limited so im hoping someone here can help me out.
That spec should say Minimum output impedance 2 ohm stereo or 4 ohm mono. You can realistically expect 80 watts per channel with all 4 channels driven into a 4 ohm load.
Bridging