Looking for a very good integrated solid state amp


My system consists of:
Castle Stirling IIs,made by the original Castle firm in England, 91 db,
Rega Brio R integrated, Rega Dac, Musical Fidelity V Link 192, Atlas cable, Macbook Pro.
I love the Castles but I feel the amp should be of higher quality to get the fullest out of them.
My budget is $3,000 or so.
Anyone have any experience with:
Perreaux Audiant, Musical Fidelity M6I, Ayre AX7e, Linn Majk I, Sim Audio, etc.
Thank you very much---
nystereo
Couple of good options: Moon is an excellent product, Ayre, one of the big Marantz integrated at your price point is a great amp, you may be able to purchase on of the new Luxman models on sale at your price, Musical Fidelity a great choice-have owned a few and always seem to be a top performer at their price,could also consider something from PrimaLuna if you want a taste of tubes. Arcam, NAD
A used Krell solid state kav 300I,300IL,400IX,all of these amps are not bright,and fits into your budget,really good sound for the used market value!,with power to boot!,small footprint,easy to put in rack,you can also use the pre-amp inside these intergrated amps to drive a seperate amplifier!,theatre thruput,that allows the inter grated amp to be used with a processor,150 watts per channel,the 400xi is 200 watts a channel,these amps range in the used market for $1800.00 to $900.00 you cannot go wrong for the money!cheers!