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Studio Speakers Connections
Studio Speakers Connections
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Old 10th January 2019, 01:32 AM   #1
Transworld is offline Transworld  Singapore
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Join Date: Jul 2003
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Question Studio Speakers Connections

Hi Guys, i would like to seek your advice regarding some connection dilemma. I am connecting from my CDP(RCA) to Yamaha HS8 Studio Speakers. The speakers able to receive XLR and TRS connections. I have 2 methods to choose from, 1) CDP(RCA) to SPK(XLR), 2) CDP(RCA) to SPK(TRS).

My question is which connection methods yields better sound? Thanks for reading.
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Old 10th January 2019, 08:37 PM   #2
Bare is offline Bare  Canada
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Which ever one YOU believe sounds better.
A connection is a connection.
Durability and ease of use is the only real world variable IMO.
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Old 10th January 2019, 10:46 PM   #3
Galu is offline Galu  Scotland
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No difference in sound as long as the cables are wired correctly.
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File Type: gif unbalanced to balanced cable.gif (26.0 KB, 64 views)
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Old 11th January 2019, 08:15 PM   #4
sgrossklass is offline sgrossklass  Germany
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The XLR and TRS jacks are generally wired in parallel and as such electrically equivalent; choose whichever you prefer. I like the handling of XLR better but unless you have some of these awful combo jacks (where the TRS portion is likely to have you cursing ), both are going to be OK.

Here's another variation on an RCA to XLR cable from Neumann; note that their speakers are outfitted with a ground lift feature to disconnect pin 1 if necessary.
Studio Speakers Connections-neumann-rca-xlr-png
As a further refinement, if source output impedance is known (got some service docs?), you could replicate that and insert it in series with the pin 3 (cold) wire at the RCA end, for further improved common-mode rejection.

Note that you generally have to solder up cables like these yourself (and I'd guess most folks around here would be OK with that); I am not aware of anyone making them for some strange reason. A solution using all off-the-shelf cabling gets a bit more complicated. (One example: 2x RCA to TS cable --> Behringer HD400 --> 2x TRS to XLR cable.)

On another note, it seems that full output power can be achieved with as little as -10dBu input; since you have up to about 2 Vrms available I'd set the level control to +4 dB (+4 dBu = 1.55 Vrms) or a bit below as a starting point. I am assuming that the CD player is a model with an integrated volume control, like a higher-end Sony from the early '90s?
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File Type: png neumann-rca-xlr.png (7.9 KB, 92 views)

Last edited by sgrossklass; 11th January 2019 at 08:24 PM.
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