Dan Worth looks at the effects of swapping out crossover components in his Ayon Seagull C loudspeakers. Not so much a review but a personal journey of exploration of what can be achieved by improving what is already there and of particular interest to those interested in DIY Audio.
https://hifipig.com/silver-gold-the-mundorf-effect-part-1/#more-45075
https://hifipig.com/silver-gold-the-mundorf-effect-part-1/#more-45075