A budget would be helpful.
Many stand-alone phono stages are not really all that well suited for driving the power amp directly, although it can work. The advantage of the line section is that it can make sure you have enough gain, and reduce the effects of the interconnect cable that feeds the amplifier.
If the phono section is integrated into the preamp, the connectivity issues (coloration due to an interconnect cable and impedance issues) are reduced.
Many stand-alone phono stages are not really all that well suited for driving the power amp directly, although it can work. The advantage of the line section is that it can make sure you have enough gain, and reduce the effects of the interconnect cable that feeds the amplifier.
If the phono section is integrated into the preamp, the connectivity issues (coloration due to an interconnect cable and impedance issues) are reduced.