Thread: Alpine PXA-H701 Questions

audio connection is analog or optical digital. I recommend optical because the analog connection has been documented many times to have a very low level hiss noise.

The optical digital BTW is SPDIF, just like in a home theater. It will carry up to 6 channels although in a car system you only run 2 channels, normally.

the optical digital is tos-link, not SPDIF like most people think of when you say SPDIF.

Usually, most documentation uses SPDIF to refer to digital coax. What the 701 takes is tos-link. I wish it would take SPDIF in.

The Alpine has 8 channels and running digital can utilize all of them, same as with analoge.

I own a PXA-H701/RUX-C701 combo, and i remember reading in this thread somewhere that the settings should be saved on the unit in non-volatile memory, hence being retained even without power (i.e. battery being disconnected). I'm not getting this... whenever i disconnect the battery, my settings are gone... xovers, equalisation, T/A etc... is there something that needs to be pressed to restore it all?

You will have to press the setting you saved it all to.

You did save all your changes to a setting, right? (1-6)

Originally Posted by RedGTiVR6

You will have to press the setting you saved it all to.

You did save all your changes to a setting, right? (1-6)

oh dear, no, no i haven't saved the settings... looks like it's time i whipped out the manual again and had a real read.

Originally Posted by RedGTiVR6

the optical digital is tos-link, not SPDIF like most people think of when you say SPDIF.

Usually, most documentation uses SPDIF to refer to digital coax. What the 701 takes is tos-link. I wish it would take SPDIF in.

The Alpine has 8 channels and running digital can utilize all of them, same as with analoge.

I'm pretty sure the sound card outputs a tos-link (optical) SPDIF signal. The same as you would find on a home DVD player. You can always use one of those small RCA-to-optical converters to take the coaxial output from a sound card or mobo and jack it right into the optical input on the H701.

The H701 can output 8 channels, yes, but I don't think it can accept 8 channels. I know it can accept 5.1 channels through the digital connection, but I don't know if the AI-net cable can transmit 5.1 channels. There are the 2 left/right analog RCA inputs and the 2 other AI-net inputs can accept adapters to use them as analog inputs (that's how you get analog 1, 2, and 3), but can all 3 analog inputs be used at once from say a DVD to get 5.1 analog inputs? I don't know.

Brycestro, once you make the adjustments hold down one of the 1-6 buttons for a few seconds and it will store it in memory.

Originally Posted by JasonWW

There are the 2 left/right analog RCA inputs and the 2 other AI-net inputs can accept adapters to use them as analog inputs (that's how you get analog 1, 2, and 3), but can all 3 analog inputs be used at once from say a DVD to get 5.1 analog inputs? I don't know.

No, this is not possible. It's either 1, 2, or 3 each by themselves. Would be nice if it did do this though.

Has anyone seen some info on the AI-net protocol?
I think there are 9 connectors and a combination of analog and digital. I wish I knew more.