Pure Digital Audio A Brief Statement On Push-Pull vs. Single-Ended Topologies

デジタルオーディオ、ホーンスピーカー、真空管アンプによるピュアオーディオシステム

A Brief Statement On Push-Pull vs. Single-Ended Topologies

シングルとプッシュプルとどっちがいいのかについては、こんな記事もある。

　　A Brief Statement On Push-Pull vs. Single-Ended Topologies

確かに異なる二つのものを混ぜるのは上手くやらないと悪影響が出るよね。
実際、私の聞く限りシングル無帰還アンプの滲みの無い伸びやかな音は素晴らしい。

そう考えると、ＤＡＣチップをパラるのも本当に良いことなのだろうか？
もしかしたら負荷の軽いシングルチップの方が良いなんてことは無いんだろうね。。。
トランスが無いから良いのかな？？

とにかく、いろいろ実験して確かめるしかないね。

-----------------------------------------------------------------

以下は上記Ｗｅｂから引用

A Brief Statement On Push-Pull vs. Single-Ended Topologies

To my ears a Push-Pull amp can suffer when the music sine wave is split into two inverted phases and then reassembled at the output transformer. Personally, I tend to hear some sibilance on vocals when amplifiers don't reassemble the two halves of the sine wave properly. When the topology is implemented properly, this issue can be nearly inaudible. With a single ended amplifier, there is no splitting of the sine waves, hence no reassembly issues.

The other item that I notice about Push-Pull amps is the soundstage. When I compare a Push-Pull amp to a Single-Ended amp, the soundstage on a Push-Pull amp is noticeably narrower. They tend to have a tight, focused sound. A good single ended amp has a cavernous presentation. Although the sound extends beyond the outside of the speakers, they still retain very good focus. A single ended amp also sounds open and effortless compared to a Push-Pull amp. These qualities too can be minimized on a quality Push-Pull design.

As I talk about the sound of the Audio Space 6M Push-Pull 300B's in this article, I'll be making comparisons to what I personally feel should be the benchmark to all other amplifiers, well designed, single ended triode amplifiers.