A question about pioneer spec-1


I have a pioneer spec-1 preamp.
Should I buy a power amplifier to drive my headphone with spec-1?

If I have buy one, any power amps are fine to be matched with spec-1? Should I buy spec-2 or spec-4?

Also I'm a bit confused to connect my rig to preamp.
My rig is began from my laptop -> dac -> preamp -> poweramp
Is the process correct?

Please anybody helps me out.
esw1026
Thank you... Can I ask you one more question?

I bought a pair of Adcom GFA-565 Monoblock power amplifier.
This power amp doesn't have headphone jack.
I don't know how to make the power amp run to back my preamp up.

Please check whether the connection from preamp to poweramp is correct or not.

I use output of Spec-1 to connect to power amp. I plugged the rca cable from the spec-1 output into the input of GFA-565 power amp. Is it correct?

How to hook up?? Please help me.
Although I connected all correctly, I got no sound coming from headphone jack........ I don't know what's wrong with this....