Hi Zach,
What are you switching?
A Jfet as an audio switch makes horrible distortion if it has more than about 100mVp-p across it when it is turned on. You can add some of the signal to the gate to reduce the distortion and extend the limit to about 200mV across it.
There are 4 ways to switch audio:
1) Series. The Jfet passes the audio to the output when it is on and blocks it when it is off. To avoid loss when the Jfet is on, the output needs a fairly high impedance load which causes poor attenuation at high frequencies when the Jfet is off due to the capacitance across the Jfet.
2) Shunt. A resistor passes the audio to the output when the Jfet is off, and the Jfet shunts the audio to ground at the output when it is on. To have good attenuation when the Jfet is on, the resistor must have a high value that causes high frequency attenuation due to load capacitance. To avoid loss, the load impedance must be high.
3) Use both Series and Shunt methods at the same time for excellent switching.
4) Cmos transmission gate. A CD4016, 4066, 4051, 4052 and 4053 make excellent low-cost audio switches when they are biased correctly and their signal swing doesn't exceed their supply voltage. :lol: