Audioquest and others make 6" pre-amp jumper cables. A google search of audio jumper cables led me to TheCableCompany. They had the AudioQuest jumpers listed. Give them a call or try AudioAdvisor if you don't have a local store that may carry them.
Short cables for Preout/main in and passive use
I am looking for a set of short ~6” RCA interconnects for use as pre out/main in jumpers and also to connect a passive pre to a Dynaco ST-70 amp I am having restored. Any suggestions? I currently own several 0.5 meter cables that I can use for this but would like to use shorter ones if possible. Thanks in advance!