AMP1 3.5mm Phone Out vs AMP7 3.5mm Phone Out
The AM7 has more sub-bass quantity than the AMP1 and it commands better extension. The sub-bass reproduction on the AMP7 is fuller and there is a stronger punch. The bass decay on the AMP7 is quicker and it renders bass texture more smoothly. The mid-bass on the AMP7 has slightly more quantity and the slam is expressed with weight. The midrange on the AMP7 is better musicality and emotions are conveyed effectively. The lower mids on the AMP7 has greater quantity than the AMP1 which contributes to the expression of male vocals. The upper mids on the AMP7 has a little more forwardness than the AMP1 and there is a controlled intimate female vocals showing. For the treble department, the AMP7 has better extension and there is a higher level of details retrieval. The AMP7 is able to render a greater amount of air with a more controlled presentation. Treble articulation on the AMP7 is more precise. The crisp on the AMP7 is well-defined and there is sparkle to liven up the top end. Lastly, for the soundstage, the expansion on both is natural. The AMP7 has greater width magnitude while the depth of AMP1 is slightly more closed in.
AMP6 3.5mm Phone Out vs AMP7 3.5mm Phone Out
The AMP6 has similar sub-bass quantity as the AMP7. The AMP7 has more extension. The sub-bass reproduction on the AMP7 is able to bring out greater impact. The mid-bass on the AMP6 has more body and the slam is less agile. The AMP7 has the edge in its definition. The bass decay on the AMP7 is quicker while the AMP6 has smoother bass texture. Each bass note on the AMP7 is articulated with greater accuracy. The midrange on the AMP7 has higher transparency level and it sounds cleaner. The lower mids on both is quite similar and male vocals are expressed nicely. The upper mids on the AMP7 is slightly more boosted and the additional forwardness results in better intimacy for female vocals. The treble presentation on the AMP7 is brighter than the AMP6 with a little more extension and sparkle is more apparent. There is an improved definition and control on the AMP7. The amount of air rendered is greater on the AMP7. For the soundstage, there is natural expansion for both and the AMP7 has greater width magnitude. The depth on the AMP6 is slightly more closed in. Positioning of vocals and instruments on the AMP7 is better.