Quoted from rocketman:
I recently got a Rush Pro and looking to upgrade the audio and have found this DIY topic were helpful and I have a couple questions/clarifications, and these might be newbie audiophile ones but I have no home entertainment, etc. experience. I have the Pinsound CN5 cable and have hooked the L/R stereo output jack to a donated home theater surround sound system which worked but just doesn't have the power to produce loud audio so I'm moving on and replacing it.
Question is I read in posts from 10 months ago that the Pinsound CN5 cable had issues with the subwoofer output cable that didn't produce a good/loud enough signal to connect to a powered subwoofer and asking if this is still the case? I've read posts where a small amplifier like a Fosi Audio BT20A was used to drive L and R speakers but these don't have a subwoofer output yet there was a powered subwoofer also hooked up. Do you use the cabinet speaker's leads as the input for the powered subwoofer in this case?
I also read where you shouldn't have your head speakers hooked up when using the CN5 cable? Is this because you could do damage to the Spike 2 audio board? Or does the Spike 2 audio board drive a signal that is shared with the head speakers and CN5 cable? I'd like to keep using the head speakers as they face you when playing but don't want to damage anything by keeping them hooked up when using the CN5 cable. What is the best way to keep using your head speakers? Do you need to wire them to an auxiliary amp? These questions may be mute if I go with this Sony unit but I'd still like to know as I have a The Munsters that I'd like to upgrade the audio on. I've found a Sony STR-DG810 6.1 Channel Home Theatre Receiver at the local farmers/vendors market that I think will produce good sound. The specs say it is 100 watts x 6 into 8 ohms. It has 6 speaker outputs with RCA jacks plus a 7th with the clamp style connectors so if I go this route, then I assume I can use 2 of the speaker outputs for the head speakers and other speaker outputs for auxiliary speakers. It also has a signal jack subwoofer output for a powered subwoofer. The input jacks don't have a dedicate "aux" left and right inputs that I've seen on other amps but have 1 set of audio input jacks labeled as "Super Audio CD player or CD player, etc." so I assume this will accept the Spike 2 CN5 audio signal?
I use the CN5 cable and both of it's outputs, one goes directly to my subwoofer, the other to a Fosil BT20A which then outputs to some tower speakers. My sub is powered and has it's own amp along with controls to set its output level, so having the sub cable go directly from the CN5 connector to the sub works great, plenty of power, I actually have it set to maybe 40% of it's power. The tower speakers have no internal amp, hence first to the Fosil, then to the speakers.
I don't know if you have to unplug the internal speakers but I ended up unplugging them all, both head and the single cabinet speaker because I found it sounded worse with them still active. I find I get far better audio separation with the head speakers disconnected. I also disabled the internal eq (an option in the Stern audio menu) which also helped sound quality. I was concerned that maybe it would sound odd with the tower speakers being lower down than the speaker in the head, but that wasn't the case at all at least to my ears.
I originally thought about using a spare a/v receiver as well but turns out that little Fosil can power the tower speakers without issue, in fact it remains cool after being in use for a while. Side bonus is that it's tiny and power on automatically with the game.
So to summarize:
CN5 Subwoofer cable -> Sub woofer
CN5 L/R cable -> Fosil amp -> Tower speakers
Sounds nice and plenty loud on my end. The only thing that confused me is that the Stern internal amp still works, like the games volume control still works, implying that the Stern amp is still part of the audio chain so I guess that means less than ideal audio. I thought the CN5 was a pre-out so it would be unamplified and just send a pure signal to the external amps but that doesn't seem to be the case.