The Kolberg Percussion bass drums of the "Big Bertha" series feature especially deep shells, designed for an exceptionally voluminous and particularly powerful sound.

We use high-quality materials, combining expert workmanship and decade-long expertise in traditional drum manufacturing with percussionists' practical performing experience. The bass drums are hand-made in small series, tested meticulously by our specialists and delivered in ready-to-play condition.

Standard equipment

Size

Shell

• Thin common beech wood shell with reinforcement ring (traditional construction method), multi-lacquered interior
• Scratchproof decor, mahogani effect or black (ash texture)

Drumhead variants

We use the finest, transparent premium-quality calf heads (Kalfo) or goat heads. Other proprietary plastic drumheads by leading manufacturers upon request.

Traditional wooden counterhoops

Made from multi-ply bonded laminated beech, rounded grip-friendly shape, multi-lacquered

Wing screws, chrome-plated and user-friendly (rapid, simple tuning)

Tensioning lugs

• solid high-quality die-cast zinc with high-gloss chrome-plating
• spring-mounted lug nuts make it easy to tune the bass drum and prevent jamming of tensioning screws due to cross-threading

Cymbal holder, adjustable (653)

Suspension and stand

We recommend the Kolberg stand for bass drums 650D40 from our product range. The connection between stand and drum shell is effected by means of special rubber anti-vibration mountings. These are mounted on the shell and connect it to the stand. As the joint between instrument and stand is on rubber mounts and is thus not rigid but can vibrate instead, it enables extraordinary sound results as well as making it possible to tilt the drum securely. At the same time, an instrument with different types of heads can make full use of ist sound possibilities since it can be rotated swiftly and simply without stop to any desired position when mounted on the stand.

Equipment above standard (extra charge)

Freely oscillating interior suspension 640IA

Unique patented fully freely-vibrating interior suspension for bass drums, with ring and elastic rubber straps located in the interior of the shell (Patent no. DE 196 16 419 C2). With this system, Kolberg Percussion offers an extraordinary solution for sound optimisation and manageability of bass drums. As there is no rigid connection between stand and drum shell, the freely-vibrating drum can develop its entire range of possibilities of sound quality and volume. The Kolberg drum with interior suspension enables space savings of around. 30 cm both in height and in width over a cumbersome bulky suspension with an exterior ring. This is of great benefit, not only in the orchestra pit but also for transportation and for storage. And there is a further, aesthetic bonus: the freely-vibrating interior suspension preserves the elegant looks of the large drums. Finally, another advantage is that it is still possible to mount a cymbal on the drum shell.

Accessories (extra charge)

• Protective cover for transport 640DBH
• Protective cover plates for drumheads 656-40
• Recommended stand from our product range: 650D40