Well CRAP,missed the SS prerequisite..Oh well I'm going to post this anyway because you REALLY should consider it...
The amp your looking for is the APPJ Audio "PA-1502" Transformer Coupled,Class A TRIODE Tube amplifier...This amp is specially designed for Low Impedance headphones like your Grado’s & the Planar Magnetics popular today from HiFIMan,Audeze & others..
It has good power out into low impedance & EVERYTHING a good tube amp can deliver like tonal purity & color,spacious imaging & staging & since it’s transformer coupled it has very good bass control & excellent tone & color..You ABSOLUTELY can not get a better amp for your budget & yes I have owned one..If you search head-fi.org & google you’ll find several reviews..
The amp your looking for is the APPJ Audio "PA-1502" Transformer Coupled,Class A TRIODE Tube amplifier...This amp is specially designed for Low Impedance headphones like your Grado’s & the Planar Magnetics popular today from HiFIMan,Audeze & others..
It has good power out into low impedance & EVERYTHING a good tube amp can deliver like tonal purity & color,spacious imaging & staging & since it’s transformer coupled it has very good bass control & excellent tone & color..You ABSOLUTELY can not get a better amp for your budget & yes I have owned one..If you search head-fi.org & google you’ll find several reviews..