Have an iPad Pro or other device with a USB-C port? We have no plans at this time for a USB-based Cipher cable, but we do offer our Bluetooth Module for iSINEs that will work with most devices.
For some devices, Anker now makes a USB-C to Lightning adapter for headphone use that may have some limited compatibility: https://www.amazon.com/gp/product/B07R6MKJZH
One thing to note: The Audeze EQ app is an unfortunate casualty of this arrangement. Since there's no longer a "handshake" over the Lightning connector, the app will not recognize the cable as being plugged in so the app will not offer adjustment of EQ. There's nothing to be done about this, but we can offer two work-around solutions:
1. If you have a device with a Lightning connector, you can make adjustments in the app there, and they will travel with the cable to your USB-C device. (Any previous adjustments you may have made via another Lightning device are already active and stored in the cable as well.)
2. You can download one of several EQ apps available in the App stores and make adjustments there on your USB-C device. (We're not able to recommend any apps in particular, but they are plentiful and cheap.)
In any case, the Cipher EQ curve is still active in the cable, so you're still getting that benefit.
One other possibility is to look into the many compact USB DAC/amps available (such as Audioquest's Dragonfly, etc), and then get the appropriate adapter for your device's jack.
For some EQ target curves for the iSINEs, feel free to check out this thread for some suggestions from KMann, our director of signal processing: https://www.head-fi.org/f/threads/audeze-isine-10-isine-20-audeze-releases-two-new-iem-planar-magnetic-earphones.818870/page-167#post-13518210
Here's an example of a target EQ curve for LCDi3/4: https://cdn.head-fi.org/a/9964813.png