Hoellstern® Audio Amplifiers
Audiophile. Powerful sound. Durable.
Our Products
Engineered and Made in Germany.
2 IN x 2 OUT DSP
4 IN x 4 OUT
4 IN x 4 OUT DSP
patch bay
System rack
Library K2
Software K2 (V1.84)
Convincing quality
Hoellstern amplifiers impress with their sound, flexibility, and reliability.
Audiophile qualities
Since 2004, Hoellstern® amplifiers have impressed with their sound. This is truer today than ever. The naturalness and precision with which these amplifiers effortlessly drive speakers down to below 2 ohms is and remains unique.
High performance reserves
All Hoellstern® amplifiers have massive power reserves and an exceptionally high efficiency of up to 85%. The power supplies and output modules, like all other components, are perfectly optimized.
High quality manufacturing
We manufacture in Germany. All components are of the highest quality and meet automotive and military standards. What is unique in the professional sound reinforcement industry is standard practice for us.
Flexible with expertise
The Configurator2 software, including the K2 loudspeaker library, is ultra-flexible and reflects the system philosophy of dozens of loudspeaker manufacturers. A unique solution for engineers with open minds.
Easy operation
The over 624 speaker blocks can be easily dragged and dropped onto the output channels of the 300 memory locations. A DSP memory location, including routing, can be completely reconfigured in less than 60 seconds.
Competent service
With more than 20 years of experience in the sound reinforcement market and 10 years of loudspeaker library support with over 35.000 measurements, our friendly support team is very well positioned.
What our customers say
We prefer to let those who are counting on us do the talking…
In an A/B comparison, we compared the current draw of the Delta 14.4 with other digital power amplifiers. Hoellstern's power management is significantly better!
It blew me away, and everyone else too. Incredible, it's just so much fun to listen to loud music! Your limiters do exactly what they're supposed to do, very precisely.
First of all, a huge compliment for the Delta 12.4, which we use for our PA system. Top-notch German craftsmanship, an amazing sound, and worth every penny!!!