Interconnect (1 Viewer)

[David AG]

Hi, I need a one meter interconnect from my rca sub out to an input on my QSC amplifier. The amp has XLR, 1/4-inch TRS input jacks, or a detachable terminal block for inputs. But no RCA inputs. What should I do? Can I just buy an interconnect with RCA ends and cut off one end and add an XLR connection? Or do they make adaptors? What is my best option? I'd like to stay under $50 so if you could recommend a specific brand or website to order from that would be great. Thank you!

 

[Chu Gai]

Give www.markertek.com a call, 800-522-2025, and describe what you're looking for. They should be able to hook you up.

 

[PatrickLG]

www.wickedcables.com

 

[Vince Maskeeper]

XLR is balanced- RCA is not. By "adapting" to XLR you'll likely cause an impedance mismatch.

The best bet would be to get an adapter from RCA to 1/4- since the 1/4 inputs on the amp will deal with balanced OR unbalanced connection.

By going to XLR the amp assumes it's a balanced connection- and since it won't be (unless you actually use a transformer)-- you'll lose gain. So, go grab a rca female to 1/4 male adapter and stick it on the end of the rca cable.

-Vince

 

[PatrickLG]

He stated it also had a 1/4" TRS . When an amp has both XLR and 1/4" TRS they are wired in parallel.

1/4" TRS IS balanced the difference between XLR and 1/4" TRS is the connector. By using a 1/4" plug you are essentially shorting out the ring and sleeve.

A properly built RCA unbalanced to balanced XLR will work in his situation. The amp will accept an unbalanced source through pins 2 and 3 from the RCA hot and ground respectivelly. Or the the tip and ring with a TRS.