Major JBL stereo upgrade but keeping stock HU

Your sub sits much tighter to the side panel than mine but I am still able to remove mine without too much of a hassle. Like I said I will only need to access the spare tire which hopefully wont be very often. I don't store anything in the little trunk cubby anyway.

 

That's a great color match on the carpet you have too !!!

 

Dave, Is that a custom sub box?

 

Love those Alpine 5 channel amps. What year did you install this system ? Those speaker crossovers are HUGE !!! I have the same issue with having to remove the driver to access behind the sub box. Just part of the deal with the location if you want it securely attached. Don't want a 50lb speaker enclose hurling across the cabin in case of an accident.

 

Had one of their amps also. Loved it

 

The helix uses what they call a GD class amplifier. This is from the Audio-Tech website about the amp ;
" Audiotec Fischers proprietary Pure Class GD concept takes the efficiency of conventional Class D amps to the next level. By varying the internal supply voltage depending on the amplifier’s input signals, idle losses are significantly reduced and overall efficiency is close to maximum at any time.
So heat dissipation is almost negligible thus allowing smallest heat sinks and most compact form factors. Besides that Pure Class GD amp outperforms conventional Class D designs in terms of sound quality by implementing a fully differential signal path and improved output filter design. "
Sounds fancy !!!

All I know is that the Helix amps are SUPER quiet. So glad I went with them.

 

I had some old school Kicker kx series class D amps in my last build. They played loud but alot of alternator whine even with a good ground

 

Not in a Prius. It was in my Dodge Ram Pick-Up LOL...No alternator in the Prius

 

I have my system converted to Digital thru the Pac Amp Pro to the DSP so it's a super clean signal with no noticeable noise whatsoever. Very happy with the Pac Amp.

 

Yea...Running the wiring down the passenger side may help. I don't have an Ai-net cable. My system runs off the digital Toslink cable from the pac amp pro to my DSP and splits from there with a standard RCA cable to my second amp but controlled by the DSP. It gave me a nice noise free system which is what I was looking for from the beginning. Sick and tired of noisy systems

 

The Prius should be one of the easiest vehicles to get a clean signal out of since there's no alternator