You need to: 1. add a ground symbol; 2. add an input voltage source configured as an AC Source; 3. add volprobes (voltage probes) on each of the twitter and woofer outputs; 4. set up an AC sweep simulation. For information about this and much more, please see: https://easyeda.com/forum/topic/How_to_find_simulatable_parts_and_run_a_simulation_in_EasyEDA-1YgasK2kC If you make your project public then I can help you create a working simulation schematic. https://easyeda.com/Doc/Tutorial/Share.htm#Sharing :)

@andyfierman Thank you! I'd just try but it just throw me and error :( Here is the project URL: https://easyeda.com/editor#id=6738b0773a7346a2ac85f2de1d2c540d Thank you for your help!!

@andyfierman This is the error that I get: Circuit: gooduntitled Doing analysis at TEMP = 27.000000 and TNOM = 27.000000 Warning: v1: no DC value, transient time 0 value used Warning: singular matrix: check nodes c3_2 and c3_2 Note: Starting dynamic gmin stepping Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Warning: singular matrix: check nodes c3_2 and c3_2 Warning: Dynamic gmin stepping failed Note: Starting source stepping Warning: singular matrix: check nodes c3_2 and c3_2 Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful gmin step Note: One successful source step Warning: singular matrix: check nodes c3_2 and c3_2 Warning: singular matrix: check nodes c3_2 and c3_2 Warning: source stepping failed AC operating point failed - Last Node Voltages ------------------ Node Last Voltage Previous Iter ---- ------------ ------------- c1_2 0 0 volprobe4 0 0 volprobe3 0 0 volprobe1 0 0 r2_1 0 0 c3_1 0 0 lh_1 0 0 c3_2 0 0 l2#branch 0 0 lh#branch 0 0 v1#branch 0 0 doAnalyses: iteration limit reached ac simulation(s) aborted Error(parse.c--checkvalid): volprobe1: no such vector. ngspice-26 done

Either add a 1G resistor from the junction of C3 and C4 to ground to provide the necessary DC path to ground from this node or replace C3 and C4 with a single capacitor of 1.65uF because 2 caps in series have a total value of C1*C2/(C1+C2).

You may like to remove the connectors because they have no model that would have any meaning in this simulation.

This: ![enter image description here][1] or: ![enter image description here][2] not this: ![enter image description here][3] [1]: /editor/20170801/598033a913dc8.png [2]: /editor/20170801/598033d12ae5b.png [3]: /editor/20170801/598033547f362.png