audio technica / AT6901ST Spike insulator

The audio-technica AT6901ST is a spike insulator that enhances sound separation and brings out more detail. When combined with the AT6902BR/AT6902ST spike base insulators, you can enjoy various sonic arrangements.

■Spike Insulators

■6 pieces included

*Cannot be used alone.

*Please use in combination with spike base insulators AT6902BR/AT6902ST.

Maximize the capabilities of bookshelf speakers

Improve sound quality, and enjoy sound shaping by changing the spike base.

■Spike insulators that enhance sound separation and extract more detail

The spike shape gradually decreases in contact area. Point contact minimizes the transmission of reflected sound and unwanted vibrations from the floor, enhancing sound separation and extracting the full amount of detail. Load capacity is up to 7kg per insulator, and up to 21kg with three-point support. Furthermore, you can enjoy sound shaping by changing the material of the spike base insulator. When combining different materials, the sound tendency of the material in contact with the speaker will be stronger.


■ 18mm Height Design for Easy Finger Access and Smooth Position Adjustment

When combined with the spike base insulator, the height is 18mm, making it easy to insert your fingers between the mounting surface and the speaker, allowing for stress-free position adjustment.

*Please use in combination with spike base insulators AT6902BR/AT6902ST.


■ Achieves Powerful Sound with Rich Mid-Low Frequencies

(Combined with AT6902ST, made of the same material)

The properties of stainless steel result in expressive and solid mid-low frequencies, achieving a powerful sound.


■ Increased Sound Power and Beautiful High-Frequency Expression

(Combined with AT6902BR, made of a different material)

The powerful sound is enhanced with a gentle addition of resonance and high-frequency extension.

While the characteristics of both stainless steel and brass are present, the stainless steel has a stronger influence on the sound.



■Quantity: 6 pieces

■Material: Machined stainless steel

■External Dimensions: φ25mm x 12.5mm (including protrusions)

■Height: 18mm

(When combined with AT6902BR/AT6902ST)

■Weight: Approx. 28g (per piece)

■Load Capacity: 21kg (with 3-point support), 7kg (per piece)

*Specifications are subject to change without notice due to improvements, etc.