"It has been refreshing to be reminded of what a glorious experience headphone listening can be if one has the right equipment. And make no mistake, the Sivga SV023 is definitely the right equipment if you are looking for what I suppose we must call a traditional pair of headphones. The sound quality is exceptional with what seems to be a remarkably flat response curve across the full frequency spectrum. Bass is rich but not overblown, the midband, where most of the heavy lifting is done, is open, detailed and very musical, while the high frequencies are delivered with a deft touch that never veers towards the harsh or fatiguing. These were a pleasure to live with and come with a strong recommendation from me." 

Review link: https://the-ear.net/review-hardware/sivga-sv023-luxury-for-less/