When you state Factory Mod , I assume you mean the Mods done by George Kaye [ the Original Designer ] .
I have owned 3 Kaye 300's with different Mods over the years . The last unit that I owned was sold a year ago . It had the FULL list of Mods done to it . The 300 is a very nice Amp in the Original form . The fully upgraded unit was a giant killer with plenty of power . It competes with any new Amp costing up to $3500.00 .
Alas , I am sorry that it was sold . I keep coming back to this Amp and will probably do so again sometime .
I have moved to full Tube units with 120 Watts of power . They sound wonderful , but lack the Bottom End and authority of the 300 w/Mods . This is while retaining most of the Spatial and MidRange qualities of the Full Tube Amps .
I have owned 3 Kaye 300's with different Mods over the years . The last unit that I owned was sold a year ago . It had the FULL list of Mods done to it . The 300 is a very nice Amp in the Original form . The fully upgraded unit was a giant killer with plenty of power . It competes with any new Amp costing up to $3500.00 .
Alas , I am sorry that it was sold . I keep coming back to this Amp and will probably do so again sometime .
I have moved to full Tube units with 120 Watts of power . They sound wonderful , but lack the Bottom End and authority of the 300 w/Mods . This is while retaining most of the Spatial and MidRange qualities of the Full Tube Amps .