Hochwertige Akustikgitarren?

Depends on what you understand under acoustic guitar, because steel string guitars are quite different than the classical concert guitars.

For steel strings, I would go to Cort and Ibanez, because there are solid instruments if you put around 500 euros.

If you are also willing to spend more, you could also be attached to Martin. Here it would be around 800 to 1,200 euros (and they are worth it).

I would take Alhambra for classical concert guitars.

Even the lower prices are simple, but good and effective, have a good grasping capability, are very pure, have good wood, often cedar wood, which is really good for classical guitar. As a result, such guitars have a more intense and dominant sound, perfect even if they sound passionate and fiery, but at the same time should remain clear in quiet moments. Here you can also get around the 500 Euro instruments you can rely on for years.

You will get 800 to 1,000 euros for “only” guitars, which would be explicitly suitable for flamenco and, in any case, concertable without any problems. This is often used with pinewood and differently painted. The guitars are more handy, so you can handle even better.

Either way, you will definitely remember the cheaper models that the Spanish brand is and Spain is the origin of the guitar.