Useful if you want to connect preamp and power amp on your McIntosh (for example) integrated without using factory jumpers. Definitely a jump in sound if you get these.
https://www.audioquest.com/products/pre-amp-jumpers?srsltid=AfmBOoonouYyvhL0jXs4SyZ1gRkIIZvEoE8YESvpHIK0TMuT_qLZEMQE
Price: 30Eur
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