Evans BD22HB - HYDRAULIC BLUE 22
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Information
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Manufacturer Information
Evans
https://www.daddario.com
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Historical context and positioning within the range
A true signature of the brand, the Evans Hydraulic series follows the line of highly controlled sounds that marked productions in the 1970s. The "oil bath" concept has become a reference for drummers seeking a dense timbre, direct response, and harmonic control at the source. The blue version retains this DNA: a drumhead designed to quickly achieve a clean, thick sound ready for recording.
Who this drum/instrument is for
The Evans Hydraulic Blue is aimed at beginner to advanced drummers who want simple tuning and an immediately mastered result. It is particularly suitable for styles where a clear stroke and reduced sustain are desired: Rock, Fusion, as well as general rehearsal, stage, or studio contexts. It is also an excellent choice if you prefer quick setups and a drumhead that is more forgiving of minor tuning variations.
Features and innovations
The uniqueness of this drumhead lies in its double-ply construction with a thin layer of oil inserted between the two films. This architecture naturally reduces resonance and limits sustain while emphasizing the attack. Unlike traditional damping solutions (rings, gels, foams), the attenuation is integrated into the drumhead, which maintains a uniform response across the entire surface and simplifies achieving a coherent sound, regardless of the kit or venue.
Sound characteristics
With its "oil bath" design, the Hydraulic Blue delivers a dry and thick tone, with a short resonance that avoids intrusive harmonics. The result is very effective for toms and snare drums when a centered, dense sound that is easy to place in a mix is desired, especially in the studio.
The oil acts as a natural damper : it reduces sustain, enhances the impact feel, and emphasizes the attack without significantly altering the touch. This produces a controlled, clean, and very "ready-to-use" sound, particularly appreciated in rock and fusion contexts where rhythmic precision and stroke clarity are priorities.
Technical specifications
| Category | Bass drum |
| Head finish | Clear |
| Shaping | Twin Ply |
| Diameter | 22 " |
| Color | Blue |
| Configuration | oil bath |
| Thickness | double-ply (outer: 6.5 mil - inner: 6.5 mil) blue |
| Sound | dry and thick |
| Resonance | short |
| Applications | general, stage or studio, Rock, Fusion |
Questions frequently asked
Is the Evans BD22HB drumhead compatible with a 22-inch bass drum?
Its 22-inch diameter is designed for a bass drum of the same size. Its double-ply construction combines two 6.5 mil films.
What sound does a blue Hydraulic bass drumhead produce?
The oil layer placed between the two plies naturally reduces overtones. The announced sound is dry and thick, with a short resonance and a pronounced attack.
Does the blue Hydraulic require much additional muffling?
The damping is integrated by the oil bath between the two films. This design limits sustain without systematically using rings, gels, or foams.
For which styles is this Evans bass drumhead suited?
This drumhead is recommended for rock and fusion. Its reduced sustain promotes clear strokes during rehearsals, on stage, or in the studio.
Is the finish of this bass drumhead transparent?
The finish is transparent and the drumhead has a blue color. The double ply of 6.5 mil outer and 6.5 mil inner contributes to its resonance control.
