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Making sense of sound

Pogma

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Hi.
I'm clueless on audio and various other things, for example wrt the logitech z623 speakers...if I use their green 3c plug to plug into my HDTV, how do I connect to my PC.

There's red and white plugs on the logitech, so do I use a cable with red and white connections and plug it into the green plug on my mobo?
 
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The Red and white jacks on the subwoofer are RCA connectors. The left and right speaker will plug into those. Simply match the colors.

You will have to switch the green 3.5mm aux cable from the tv to the computer when you want to change what device the audio is coming from.
 

Mussels

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Hi.
I'm clueless on audio and various other things, for example wrt the logitech z623 speakers...if I use their green 3c plug to plug into my HDTV, how do I connect to my PC.

There's red and white plugs on the logitech, so do I use a cable with red and white connections and plug it into the green plug on my mobo?
They can only connect to one thing at a time
2xRCA -> 1x 3.5mm stereo


If you have them connected to the TV, and the PC is connected via HDMI the HDMI sound from the PC will come out of the TV (and therefore, any attached speakers) when its on that HDMI channel
 

Pogma

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Okay thx for that guys, I should clarify that the back of the sub has provisions for each speaker, but "also" has a 3c port and the 2 RCA ports...that being the case can I connect to both my TV and PC at the same time?

I have a HDTV and a PC LCD.
 

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Let me google it, pictures are worth a thousand words

1636244938200.png


1636244947043.png


It has three options for input

2x RCA (from older stereo equipment) and 2x 3.5mm (black and green) for a total of three connections


Reviews seem to screw that information up and miss the black port entirely, and i have no idea why they have that label "3ch" unless its to state you have 3 channels total
Black is a badly shown screw hole, third input is on the right speaker


It has no switches or input controls unlike my old Z-5500's, so all three inputs play at the same time


Edit: oh god theres multiple revisions, hence everyones confusion. This one has a screw where the black input is. It's a bad picture/render.
1636245229647.png




Edit: or it's trying to say the RCA's can handle stereo, and you can use all three seperate? The documentation is rather vague, isn't it.
You also get a line-in on the right speaker.
 
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Pogma

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Ah huh, so it looks like I could connect the green 3.5 port to my TV and the black 3.5 port to the green port on my mobo.

I was worried that if I had to use the RCA that it wouldn't carry the subs signal, but the black 3.5 will do it all.

Thx for your help.
If I get the chance I'll get em today and I can watch Dexter in higher quality lol.
 

Mussels

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Did a few edits - used the strikethrough feature to help show what i changed

RCA is two mono cables, while 3.5mm TRS is one stereo cable.

Both carry a 2.0 sound only, the subwoofer filters lower frequencies off to itself based on that knobs setting.
 

Pogma

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Not to worry, I really want it for my TV but I'd be handy to use on pc as well(without disconnecting).

I'll report back after I set it up.
Thx for your help.
 

Mussels

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You can definitely use both, and at the same time

One of these cables is usually the simplest for connecting to modern equipment (Or, use the input on the right hand speaker)
1636246127755.png
 

Pogma

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I think they give me a 3.5 cable, so I might need to get that 2 into 1 as well.
Thx again.

Okay, I got the z623 and it was plug and play with my pc, but I can't get sound out of my TV when using my bluray player.

I've plugged the 3.5mm into the tvs 3.5mm port and into the other audio port but no sound.

I came from the z5500, and when running high bitrate stuff, ie, 1500 DTS off a BD rip, it sounds as good as the 5500.

It sounds much better than I thought it would and obviously sounds best when matched to good quality sound.

Whoops, kept fiddling with the TV remote and I've got dvd sound to work.

So watching Superman on bluray the bass is epic, however the audio sounded best when watching a HD rip with 1500k DTS.

For PC this is incredible value for money, however for DVD/BD playback, you're prolly better off with the z906, that said if you're TV is 2x7 or 2x10w, the z623 is far superior especially on bass.
 

Pogma

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Did a few edits - used the strikethrough feature to help show what i changed

RCA is two mono cables, while 3.5mm TRS is one stereo cable.

Both carry a 2.0 sound only, the subwoofer filters lower frequencies off to itself based on that knobs setting.
Hi just a update.
Overall very happy with these speakers and are very easy to recommend with a caveat.

I've connect the supplied 3.5mm cable to the headphones jack of my HDTV, and given my HDTV is connected to my pc via hdmi, I can leave it like that and watch pc content and use my bluray player.

I paid $220AUD for these, and they're 200w total, however the next cheaper set of logitech 2.1 has only a crappy 60w total, so I'd avoid them like the plague.

One problem with dvd/bluray playback is that when you run a 2.1 system, you have to goto the player settings and change Dolby digital and DTS from bitstream to PCM stereo otherwise no sound.

So I popped in Terminator 1984 bluray into my player and the sound was impressive on bass, laser shooting and the scene in "Tech Noir" where Arnie uses a machine gun, but some of the dialogue is a bit quiet and nothing can be done about it using the bluray player.

So if you plan to watch movies on a stand alone bluray player, you'd be much better served by the 5.1 z906 that can decode both Dolby digital 5.1 and DTS 5.1, however on pc, you can use your VLC player to increase sound beyond 100%, so on pc these are worth every cent.

I had to learn most of this over the last few weeks.
 

Mussels

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Benchmark Scores Nyooom.
If you make sure everything is set to stereo/headphones along the way (BD player and TV) that should help the dialogue volume issue

If you're using a PC as well, set it there too (disable support for anything not stereo PCM) - no point sending signals you know it cant play
 
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