Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post

TOOSTUBBORN2FAIL · 09-09-2016, 07:51 PM

Ok, so I just looked at the price of the OEM+ systems. Can it be beat for less money? Yes and no.

To have better or match the sound quality of the OEM+ system, you HAVE TO HAVE DSP. Sorry for the caps, but this is not an option, its a requirement.

The most basic of DSP's start at about $300, for the C-DSP. You will also need an amplifier channel for each speaker. So, 5 channels of amplification. Oh yeah, using the $300 C-DSP requires you to ditch the rear speakers. A good quality 5 channel amp costs about $400-1000. Lets assume $400. Now your at $700. Now you need a sub. Lets say you use a reasonably priced Dayton HO8". That will set you back another $100. Since this is a 2 way front stage, you need a tweeter than can be crossed over by at least 2500hz. The stocker isn't going to do that. Lowest price your going to find that is the SB Acoustics 29mm Soft Dome. Those will set you back $120 for a pair.

So you're at $920. That leaves you with $280 left to build the enclosure, run power wire for the DSP and amp, run signal wire from the head unit to the dsp, run RCA's from the DSP to the amp, run speaker wire from the amp to the speakers, and install the tweeters.

Then, you have to learn how to tune time alignment, which is adjusted in 1 millisecond increments, you have to learn how to adjust EQ separately for each speaker to overcome the acoustics of the car, and then adjust EQ for the speakers together for the general frequency response curve.

This will get you what OEM+ gets you sound wise. You can not get to the level of sound quality that OEM+ provides without DSP. It is impossible in a car.

Or, you could just buy the OEM+ and plug it all in and be done.

Of course, if you are a bass head, and only care about thumping, OEM+ is not for you.

09-09-2016, 07:51 PM	#11
TOOSTUBBORN2FAIL Senior Member Join Date: Aug 2015 Drives: Specialized Hardrock Location: Visalia, CA Posts: 170 Thanks: 0 Thanked 68 Times in 42 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Ok, so I just looked at the price of the OEM+ systems. Can it be beat for less money? Yes and no. To have better or match the sound quality of the OEM+ system, you HAVE TO HAVE DSP. Sorry for the caps, but this is not an option, its a requirement. The most basic of DSP's start at about $300, for the C-DSP. You will also need an amplifier channel for each speaker. So, 5 channels of amplification. Oh yeah, using the $300 C-DSP requires you to ditch the rear speakers. A good quality 5 channel amp costs about $400-1000. Lets assume $400. Now your at $700. Now you need a sub. Lets say you use a reasonably priced Dayton HO8". That will set you back another $100. Since this is a 2 way front stage, you need a tweeter than can be crossed over by at least 2500hz. The stocker isn't going to do that. Lowest price your going to find that is the SB Acoustics 29mm Soft Dome. Those will set you back $120 for a pair. So you're at $920. That leaves you with $280 left to build the enclosure, run power wire for the DSP and amp, run signal wire from the head unit to the dsp, run RCA's from the DSP to the amp, run speaker wire from the amp to the speakers, and install the tweeters. Then, you have to learn how to tune time alignment, which is adjusted in 1 millisecond increments, you have to learn how to adjust EQ separately for each speaker to overcome the acoustics of the car, and then adjust EQ for the speakers together for the general frequency response curve. This will get you what OEM+ gets you sound wise. You can not get to the level of sound quality that OEM+ provides without DSP. It is impossible in a car. Or, you could just buy the OEM+ and plug it all in and be done. Of course, if you are a bass head, and only care about thumping, OEM+ is not for you.