I agree you should think about getting a good integrated amp with HT bypass and use the yammy for HT only. Adding a power amp isn't going to help the less than stellar pre-amp section of the HT receiver. Clarity and soundstage is more likely to come from a good pre-amp section.
Whether you choose tubes or not is another issue. At your price point you are looking at lower powered but integrates as noted by others. Pretty much any good integrated at $1k used will seriously outperform the yammy for music.
Whether you choose tubes or not is another issue. At your price point you are looking at lower powered but integrates as noted by others. Pretty much any good integrated at $1k used will seriously outperform the yammy for music.