This spring I install the Alpine IDA-X100M, PDX 4.150 and PDX 1.600

1.6 pushing 2 Polk Audio 12inch subs and 4.150 pushing 3 sets of polk components. The wireless remote is worthless...Works best about 3 feet from the system. But I am happy with the sound! Amps mounted in cuddy and vented and still gets pretty warm to hot!

I was sceptical on the wireless remote. I planned on putting the amps behind my seat in the mid cabin. I have seen them there on others guys boats and they never said anything about it being to much heat. Would under the back bench seat be better?

I have a 28 Victory which has a similar mid-cabin. I used a six channel JL amp for the cockpit. I put 2-front, 2-rear speakers on separate channels. the two 10" JL subs are on the other two channels. the cockpit sound will blow you out of the water. I ran the bow ant the mid cabin off of the radio amp. the radio amp puts out plenty of power for these small areas. To help with control, i put the blue amp signal wire on a switch so i can turn off the amp and cockpit at night, or when you just want the bow and mid-cabin on. Sweet set-up on an advantage. wireless remote at the helm works great also.

The reason mine maybe running warming is I have them stacked in the cuddy in a smaller cabinet above the sink on my 35 zr, I put 2 vents in. Mine is wired for 2ohm which may cause more heat? But I love the way it sounds. I used the alpine PDX amps because of the small size to power output..I think it would be better if I installed a small fan to circulate the air better. Under the seat as you suggested may be fine as long as it is vented.

That sounds like a good setup. Do you run a wireless remote? If so, have you had any problems?

I'm running 8 speakers off a 4.150 and it is fine. The PDX amps do not get nearly as hot as conventional class a/b amps and they also draw a lot less power.
I can run my stereo at 3/4 volume for 4 hours off a single 29M battery. I also have a 4.100 bridged that powers my subs.

i miss spoke on the wireless remote, it works only in the mid-cabin and bow because the radio is in the mid cabin and has to be in site for the wireless to work. I have a remote located at the helm that is wired into the blue jack on the back of the Sony Radio.

Pretty happy with this set up.

Running 5400 watts of power to drive 5000 watts.
4 PDX 4.150
2 JL 1000

I added 2 80amp Kinetik chargers to keep up with the amp draw.
I can run this forever at full volume.

I add cooling fans to the amps located under the back seat.
The PDX are stacked under the dash and therefore are not confined inside a cabinet. No problems with heating up.

Still have more speakers to install, but it has become quite a project.

What speakers are you running and how many do you have? Are you running 2 or 4 ohms on your amps? I am assuming 2.

I was thinking about addind a wireless remote to the swim platform. But wasnt sure how it would work. Im guessing the distance 10-11' from the head unit. Im not sure if Alpine makes at wired remote or not.