Oregon3,
You have some good suggestions and I am partial to tubes myself. However, depending on just how loud you listen, the MG Head may, and I only mean "may" not be quite enough power for you. I had one and enjoyed it and it is very good bang for the buck. BUT, with the Senns, it had some limitations due to their impedance. It can drive Grados no problem. The other posters may better speak to the newer vesion of the MGHead's ability to drive the Senns.
That said, since you are also talking used, you may want to try to score a used Single Power or Rudistor amp (but they might be very hard to find).
You can also look into the Musical Fidelity X-Cans - I have no idea about this unit though.
Finally, if you were to consider any solid state amp, I can unhesitatingly recommend the Meier Corda HA-1 MK-2. I picked one up used for $275 and it works very well with my Senn 600s.
Hope this helps.
You have some good suggestions and I am partial to tubes myself. However, depending on just how loud you listen, the MG Head may, and I only mean "may" not be quite enough power for you. I had one and enjoyed it and it is very good bang for the buck. BUT, with the Senns, it had some limitations due to their impedance. It can drive Grados no problem. The other posters may better speak to the newer vesion of the MGHead's ability to drive the Senns.
That said, since you are also talking used, you may want to try to score a used Single Power or Rudistor amp (but they might be very hard to find).
You can also look into the Musical Fidelity X-Cans - I have no idea about this unit though.
Finally, if you were to consider any solid state amp, I can unhesitatingly recommend the Meier Corda HA-1 MK-2. I picked one up used for $275 and it works very well with my Senn 600s.
Hope this helps.