I am using both left & right output of my Alpine 9833 connecting to Octane R8.0:1 mono amp, which is powering 2 image Dynamic sub. Wondering if I select "mono" sub setting in my 9833, will it actually sum L & R inside 9833, & sum it again in R8.0:1? Or should I select "Ste...

1200w is for 2 ohm load, not for 3 ohm load. 1000w for 3 ohm load is very reasonable, which would equivalent to ~54.77v.

Looking at Ti500.4 spec below, it is really surprise to me it is rated at only 125w/ch for 2 ohm vs 75w/ch for 4 ohm, for 4 ch. ftp://public_user:password@www.rodinaudio.com/Phoenix%20Gold%20Mobile%20Audio/Manuals/Amplifiers/Titanium%20500.4%20manual.pdf I know Zx475ti is considered equivalent as Ti...

My Alpine 9833 is still going strong, except some of button become quite loose & almost feel like it is going to fall apart anytime.
If I get a new or good shape 9835 face plate, will it work on my 9833?

OK

I will try to open her up.

125 bux sounds reasonable.

My Ti 500.4 has developing a intermittent cold sensitive problem. 2 of channels will phase in & out if amp has not been used for couple hours or over night. This does not happen if in hot weather, when inside the car is already warm. This will also go away if I listen to it for a while, some tim...