Thanks to all.
Doug, my CAT SL1 Ultimate preamp has an MC phono board. Its phono gain is 46db. So mid to high output cartridges (0.35~0.8 mV) can be used. The CAT also supplies the impedence load plugs (probably 50, 100, 150, 300). But as the Ruby's recommended load is 1000~47k, I do not use the plugs. So the impedence is currently matched to 47k.
For the head amp or the stepup transformer, I agree with your opinion. They may improve the base weight and the presence of music. Thanks for your information about the Mu stepup transformer. Could you give me more comments about Mu's sound characteristics?
For the phono cable, is there anyone having experiences of rewiring of Rega's stock ones? Any significant improvement? Any risk in the modifications? My P9 + RB1000 combo has a so-called 'golden midrange glow', but the bass is lumpy and 'folded' under as Reb described.
Doug, my CAT SL1 Ultimate preamp has an MC phono board. Its phono gain is 46db. So mid to high output cartridges (0.35~0.8 mV) can be used. The CAT also supplies the impedence load plugs (probably 50, 100, 150, 300). But as the Ruby's recommended load is 1000~47k, I do not use the plugs. So the impedence is currently matched to 47k.
For the head amp or the stepup transformer, I agree with your opinion. They may improve the base weight and the presence of music. Thanks for your information about the Mu stepup transformer. Could you give me more comments about Mu's sound characteristics?
For the phono cable, is there anyone having experiences of rewiring of Rega's stock ones? Any significant improvement? Any risk in the modifications? My P9 + RB1000 combo has a so-called 'golden midrange glow', but the bass is lumpy and 'folded' under as Reb described.