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求推荐一组适合创新X7听音乐的运放

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发表于 2017-6-9 13:05 | 显示全部楼层 |阅读模式
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这是几组官方推荐的运放,哪组比较好?
 楼主| 发表于 2017-6-10 00:05 | 显示全部楼层
没人吗?
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 楼主| 发表于 2017-6-12 09:26 | 显示全部楼层
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发表于 2017-6-16 23:25 | 显示全部楼层
https://www.head-fi.org/f/threads/creative-sound-blaster-x7-detailed-review-impressions.756102/
这里有一篇详细的X7的评测

楼主测试的运放和听感,你自己看吧
OPA604
Famous op-amp for intimate vocal. OPA604 has a very unique sound signature that is probably the closest to tube sound signature among other op-amps I ever tested. Vocal is what OPA604 does best. Smooth warm and a bit mellow sounding. Vocal presentation is slightly forward, brings the singer closer to the audience. It is not the best choice for clarity, transparency, and spaciousness. It is not as transparent as the LME49710, kind of the opposite of the LME49710 fast and transparent sound signature, OPA604 is leaning towards the warm and slightly dark sound signature. Midrange sound thicker and fuller. Imaging is not as spacious as LME49710, and may sound a bit narrow. But I enjoy vocal better on OPA604. It removes most of sibilant and edgy treble. While LME49710 is more natural sounding, better for other recordings that good with transparency and spaciousness. I do recommend to try OPA604 since it has the opposite sound signature of the LME49710, to give the idea how much op-amp rolling may change the overall sound signature.


AD8597
Very effective to smoothen edgy treble without losing too much transparency. AD8597 sounds silky smooth and organic, and a touch warm. Not as warm and thick as the OPA604, and relatively sounds more natural than OPA604. AD8597 also has better spaciousness and treble extension than OPA604. One of my favourite op-amp for some bright sounding headphones. Bass and midrange is good, smooth and organic with good detail. Vocal sounds silky smooth and intimate, but not as intimate as OPA604. A good option to tame analytic sounding setup, and yet keeping the whole tonality relatively neutral and spacious. But not a good option for the warm sounding setup, as it might sounds a bit dull on warm sounding system. In simple comparison, AD8597 is somewhere in between LME49710 and OPA604.


OPA827
One of the top picks op-amp from the list. Overall tonality is neutral. Bass and mids sound fuller and stronger than LME49710, with good dynamic. Vocal is smooth, thick and full bodied like OPA604, but clearer with better detail. While treble is quite extended and transparent, yet slightly darker and smoother than LME49710. Treble is more sparkling and transparent than OPA604, and pretty close to AD8597. Imaging and spaciousness is very good, but LME49710 is slightly more spacious & transparent sounding, with slightly better instrument separation. OPA827 is a full and lively sounding op-amp with excellent bass & dynamic. A very good choice to improve bass and midrange body, when LME49710 sounds thin with the existing setup or headphone. OPA827 is one of my favourite op-amp for my Beyerdynamic T1.


OPA627
OPA627 is a very famous op-amp, known for its flat tonality. On SB X7, it sounds really neutral, tonality is perceived like a perfect flat, with excellent low bass and upper treble extension. It is less analytic, with smoother treble than the LME49710, while LME49710 sounds slightly more transparent and spacious. It's good to use OPA627 as a reference op-amp to compare tonality of other op-amps. Imaging and instrument separation are excellent, very good 3D imaging. Not very spacious but accurate. What OPA627 is slightly lacking is dynamic, not as dynamic and lively sounding as the OPA827. When the headphone or speaker is also lacking in dynamic, the result could be a dull sounding setup. But if the rest of the component have good dynamic, OPA627 shines. The plain vanilla OPA627 is a reference op-amp for tonality, but might not always musically engaging. As for myself, though I like the OPA627 tonality, I do prefer something with better dynamic like OPA827. And I often find LME49710 transparency and spaciousness are quite addictive.


AD797
Probably as famous as the OPA627, AD797 is a very well-known op-amp. The speed, detail, transparency and liveliness of AD797 are impressive. One of the most open and transparent sounding op-amp I ever tried. The level of detail, transparency and spaciousness are slightly higher than LME49710. AD797 tonality has some similarity to transparent sounding LME49710. The different is more on the bass, where AD797 sounds slightly fuller and hits slightly harder. Although the level of detail and clarity is high, AD797 is still musical and doesn't sound sterile. Comparing to OPA627, OPA627 is more sweet and polite sounding, while AD797 sounds livelier, and may sound a bit aggressive. If OPA627 considered flat sounding, AD797 is perceived as mildly V shape. OPA827 sounds slightly smoother and better for vocal than AD797, while AD797 sounds more lively and transparent. The difference is not much; basically both are excellent op-amps. Not for those who are looking for warm sounding sound signature, but mostly for setup that sounds too mellow and lazy, AD797 is probably the magic pill to wake it up and make it sounds more energetic and transparent.


OPA228
Snappy and lively sounding with forward presentation. I would say OPA228 is fun sounding, but not the V shape type. Low bass extension & treble transparency don't sound as extended as the stock LME49710. Mid bass is slightly more emphasized than the low bass, as well as lower treble sounds more emphasized than the upper treble. On SB X7, OPA228 sounds natural, but doesn't really improve anything from the LME49710.


AD8065
Another op-amp with unique sonic flavour that I like, especially for vocal. It sounds like an improved OPA228, with better detail, transparency and spaciousness that are close to LME49710, but with smoother treble than LME49710. If you like OPA228 sound signature, I would say try AD8065. It has mild emphasize on low midrange to mid bass area that help to add body to vocal and improve bass punch. Bass sounds punchy and lively, but not as full and powerful as OPA827. Dynamic is good, pretty close to OPA827. AD8065 has pretty good chemistry with SB X7. Vocal doesn't sound warm or mellow, but well defined, smooth, with good texture. Vocal is a little forward in presentation. I prefer AD8065 for vocal as compared to OPA604. Comparing AD8065 to the stock LME49170, what I consider improvement is the smoother treble while retaining the level of detail, transparency and spaciousness. Slightly fuller vocal and punchier bass. Recommended!


OPA1641
Natural sounding, but a bit grainy, not as smooth as the other op-amps in the list. There is nothing bad about it, it sounds more neutral than OPA604, but also nothing special. More or less comparable to OPA228, slightly more neutral. I still prefer the stock LME49710 in comparison to OPA1641, at least for Sound Blaster X7.
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