Klara Geist

Exclusive high-end mobile and stationary PA soundsystems. Handcrafted in Berlin. Designed with passion for detail. Highest quality components. Skillfully crafted. High-end audio performance. 
The official sound-outfitter for Bullitt Cargo Bikes. Professional Soundbike rental service. Branded promotion Soundbikes. Custom designs.

The Bearpit Transformer / Custom Model / 2009

In 2009 Joe Hatchiban the host of the famous "Bearpit Karaoke" approached us with a request for a rugged and sturdy mobile pa system powerful enough for large crowd outdoor events - yet compact and light-weight to be carried on his bullitt cargo bike. Our custom development to meet his requirements: The Bearpit Transformer. The system is ready to play while riding the bike and can easily be unmounted and set up by a single person. High-performance battery packs ensure up to 8 hours of high-quality powerful sound-performance - setting no limits to the show.

Every sunday between 1000 and 2000 people show up at berlin mauerpark amphitheater (prenzlauer berg) to celebrate the most unusual karaoke event ever, where the star is you, you and you… but no question it wouldn´t be the same if not for Klara Geist´s custom fit sound-solution… enpowering Joe Hatchiban to stage his show just how he wants to - wherever, whenever…


Technical Data

Housing material: Wood (of layered plate materials)
Dimensions: 70 x 65 x 28 cm (each speaker)
Weight: ~ 50 kg (each speaker)
Frequency response: 60 – 20.000 Hz
Amplifier: 1 x Digital Amplifier (600 Watt / max 120 dB SPL.)
Input: 1 x Line In (Mixer) / 1 x 12 V DC (for Laptop)
Battery: sealed lead acid (~ 6 hours playback on max. volume)


Klara Geist / Lautsprechermanufaktur
Gartenstraße 90 / 17309 Pasewalk / Germany