Im trying to connect a eq to a hartke3500 head or to a crown c1000 power amp

The output of the Hartke plugs into the input of either amp, you may need to add a balanced to unbalanced adapter. Although you should check the jack- if you can plug a stereo plug into the jack and have that second contact making contact with a tap that is neither ground nor that of the tip- your amp may have that capability.

If you do not, and it is strictly a 2 contack jack- take an XLR of suitable gender to connect to the Artmdc 2001 , jumper pins 1 and 3 with wire this goes to the sleeve of the plug. At pin 2, attach a 3900 ohm resistor and then a 1000 ohm resistor in series. The other end of the 1000 ohm resistor goes to ground. At the point where the 3900 ohm resistor and the 1000 ohm resistor come together, that is your tip connection on the plug.

You do lose some signal because of the resistance, but this method keeps noise down if your adapter is short in length. Otherwise there are enbalanced to balanced microphone adapters ready made that will work, and offer a little less insertion loss. any effects or other preamps then would rout through the Artmdc The output of the Hartke plugs into the input of either amp, you may need to add a balanced to unbalanced adapter. Although you should check the jack- if you can plug a stereo plug into the jack and have that second contact making contact with a tap that is neither ground nor that of the tip- your amp may have that capability. If you do not, and it is strictly a 2 contack jack- take an XLR of suitable gender to connect to the Artmdc 2001 , jumper pins 1 and 3 with wire this goes to the sleeve of the plug. At pin 2, attach a 3900 ohm resistor and then a 1000 ohm resistor in series. The other end of the 1000 ohm resistor goes to ground. At the point where the 3900 ohm resistor and the 1000 ohm resistor come together, that is your tip connection on the plug. You do lose some signal because of the resistance, but this method keeps noise down if your adapter is short in length. Otherwise there are enbalanced to balanced microphone adapters ready made that will work, and offer a little less insertion loss. any effects or other preamps then would rout through the Artmdc

Alternately you can also try pin 2 of the XLR to the tip connection and and pin 3 to the sleeve. Leave pin 1 alone.

THe best bet is to try each method to find the one with least noise and best sound. Alternately you can also try pin 2 of the XLR to the tip connection and and pin 3 to the sleeve. Leave pin 1 alone. THe best bet is to try each method to find the one with least noise and best sound.