Need Kt88s Genelex? or Shuguang?

I purchased a Shuguang 502B integrated amplifier from Pacific Valve. It comes equipped with Shuguang KT88-98 power tubes. After upgrading the coupling caps and beefing up the power supply it really put out some good sound but, I noticed a loss of resolution at the high frequencies. At a friends suggestion I replaced the KT88-98 tubes with the Genelex Golden Lion Rebuilds. This cleared up the high frequency response beautifully. I recommend spending a few extra bucks and buying the tubes from a dealer who actually matches them. However, I don't recommend buying anything from Pacific Valve. They misrepresented the features of the amplifier.

Quant100, The pictures posted on their website showed the volume control knob had a blue led on it to indicate it's position. The amplifier I received from them had no led. Shuguang did about 90% of a good job. The amplifier was advertised as having high end audio components. It does, now that I have replaced the cheap coupling caps with polyproplene caps and beefed up the power supply resistors with wirewound non inductive resistors. I was disappointed with Pacific Valve but not with the amp. With the upgrades to the components and tubes the amp performance is well worth the costs.