Please recommend a headphone amp for use with SR-series Grado
headphones. Budget is around $200.

Creek OBH11
Headroom AirHead
Headroom TotalAirHead

or pro audio stuff from Rolls, Behringer, Samson


Currently I'm using the headphone jack on my receiver (Onkyo SR500)
which is rather "sterile" sounding. I want a deep and broad soundstage
with detailed imaging. Earsplitting SPL is not so important. Most of
my serious listening is classical and old jazz (Miles and Coltrane).

My sources a
Music Hall CD25 HDCD player (primary source)
sound card (TB Santa Cruz)
Pioneer DV563 SACD/DVDA player
Sony turntable
Onkyo cassette deck
FM tuner in the receiver
"Music Choice" on cable box

thanks
Sathyan