Backwards sound card :-(

A year or so back the built in sound card in my Dell Precision workstation died. It was out of warranty but I had purchased it with a Visa credit card. The Visa extended warranty paid me for a replacement system board. Since everything else worked fine I did not really want a refurb system board so I purchased a USB sound dongle for about $15 US and spent the other money on something else. The USB gizmo worked great except that sometimes when I enabled it on a virtual machine (Vmware) and then returned it to the host - the host had no sound and I had to reboot. That is a bit of an engineering task as I have to suspend 2 or 3 virtual machines and then at boot enter the pass phrase for the main partition then after logon unlock and mount another encrypted partition and finally unlock a Veracrypt container of archive data. I try to keep reboots to once a month - when I perform a cold backup of the OS. So...

I purchased an actual PCIe sound card on evilbay for $12 US. I plugged it in this evening. I can access it from the host and a VM at the same time which is neat. However, as I was doing a speaker check - just for a source of test sounds...

I found that the Front Right speaker test sound comes out the left speaker and vice versa. I don't think this matters as the speakers are only a sound bar under the monitor. Is there a way to change this? other than rewiring the speakers?

For what it is worth the system is:

Dell Precision T3620
CentOS 7 with the Mate desktop
CM18738/CM18738 PCI Audio (CM18738/C3DX PCI Audio Device)
The sound profile is Analog Stereo Duplex

TIA,

Ken