A question about my Rogue Sphinx II amp

I wouldn't go so far as to call it "theft", but using a dealer's time like that and not purchasing from them is definitely not cool.

In regards to your actual question, many integrateds don't have very powerful headphone amps.  I didn't see any specs about the Sphinx's headphone amp.  If your headphones are hard to drive, the internal headphone amp might not be up to the task.  

The tubes are probably fine.  If one or more of them is glowing, or if you hear ringing, or noise, you might have a bad one. 

Wait until you get your speakers and see how it sounds.  

Lame.  You can read reviews on line, buy used at a good price and then resell with little to no loss.

You are wasting someones time when you go pick their brain for info, demo their equipment, decide to buy it but only at the lowest price from someone who didn’t help you out at all??

Why is it so hard for people to understand why this isn’t cool?  This type of buyer will eventually put all of the knowledgeable, helpful sales people out of business.  
My advice to these people is to “grow a pair” and just be totally upfront with these sales people when you are wasting their time.  Upon initial meeting of said sales person just tell them the truth.  Tell them you are strongly considering buying a certain component but need their expert advice, knowledge, time, and that you’ll need a demo but that you will not buy from them because you place no monetary value on the services they provided to you.

Again, lame.  Hopefully your Rogue is broken and you are sol.

Oh, and a salesperson is actually owed something after they help you.  Most sales people work off commission, or part commission.  
I think you got it backwards.  What does a salesperson owe you, if you aren’t willing to purchase from them after the service they provide for you?

I'm with Johnny here on this one.

+1 Limo...