PENON TURBO

I'm enjoying the energetic yet nuanced sound from this Turbo. I find the sound is extended at both ends of the frequency spectrum with a natural and airy midrange that suits the majority of my music. There are no thoughts of the fact that this is an all BA set. No thoughts such as I wish it had a dynamic driver.
This set is nothing if not versatile. I'd be more than happy to live with this IEM.
That's my verdict on the Penon Turbo. Now I'm off to listen some more before it travels to the next audiophile in town.
https://www.head-fi.org/showcase/penon-turbo.26608/reviews

For audiophiles looking for a versatile all-BA IEM, the Penon Turbo is a good option to consider. It has 14 tuning options on tap, with a generous bass boost switch for our basshead brethren. The treble is smooth with minimal sibilance, and technicalities like imaging and soundstage are a highlight.
This IEM is easily driven, with good passive isolation and a generous accessory spread added to solid ergonomics. In fact, due to these properties and solid technical chops, the Turbo is an excellent option for audio work or stage monitoring.Some small nitpicks are that it has mild BA timbre, and trebleheads might want a bit more oomph in the higher end, but by-and-large, the proffered versatility and all-roundedness make this a formidable all-BA set.

https://www.head-fi.org/showcase/penon-turbo.26608/reviews#review-34254

The bass performance is spectacular and is one of the highlights of the Penon Turbo, especially considering that the BAs are completely handling the bass! Smooth treble presentation with decent sparkle, well extended and airy treble, impressive imaging and layering. Shell is made entirely out of resin, very lightweight as well. Overall, the Penon Turbo is very well tuned in all departments, backed up with good enough technicalities, and can be further customized with its well implemented tuning switch system.

https://www.head-fi.org/showcase/penon-turbo.26608/reviews#review-33193

Turbo is a V-shaped IEM that can have anywhere from substantial to unreasonable amount of bass. The bass line of Turbo has satisfying thickness, rumble, and decay. Turbo showcases good instrument placement, particularly the depth contrast between closer and further away sounds. This IEM can pull good details in the midrange. Turbo renders all vocals with a pleasing and slightly warm tonality. The treble was also cleverly done, the transients sound crisp.

https://www.head-fi.org/showcase/penon-turbo.26608/reviews#review-32643

The Turbos are extremely cohesive, as fast as their name suggests, and pack a wallop. Bass texture is impressive.
There's a satisfying sense of fullness to the Turbos' midrange.
The Turbos' soundstage width is slightly above average. Imaging is very solid and dynamics are satisfyingly strong.
Resolution is very good.
The Turbos possess a tremendous sense of speed despite their huge bass presence, which will be especially appreciated if you listen to fast-paced music with busy passages.

https://www.head-fi.org/showcase/penon-turbo.26608/reviews#review-32123