AKG AKG2144Z1201 - Inner casing rubber (foam strip) for K141, K121 and K142 headphones

AKG AKG2144Z1201 - Inner casing rubber (foam strip) for K141, K121 and K142 headphones

The reference AKG2144Z1201 identifies the internal foam strip inside the earcup of AKG K1xx family headphones. In service documentation, it is referred to as "Foam Strip" ( Streifen ) and is an original (OEM) part that is placed inside the capsule housing to secure the transducer seat and contribute to the sealing and acoustic damping of the assembly. In newer models of this family, the part is listed as 2144Z12010 , with the same function and quantity per earphone.

This is a technical replacement part designed for maintenance and restoration to factory specifications . These strips can deteriorate with use, impact, or improper cleaning, causing loss of seal, slight buzzing, or slight variations in tone. Replacing them with the original part restores the earpiece's mechanical and acoustic consistency.

Main features

• Genuine AKG replacement ear cushions for the K1xx series, with exact fit and foam density according to specification.
• Sealing and damping function : helps control internal resonances and micro-vibrations of the cup.
• Compatibility verified in K141 (2144Z1201) and K121/K142 (2144Z12010) service manuals.
• Quantity per earphone : 2 strips (one for each capsule/side), according to the manufacturer's breakdown.
• Clean installation : integrates into the capsule housing without disturbing the wiring or the capsule.

Compatibility and cross-references

• K141 (Old, K141/2, Monitor, Studio, Studio II): Foam strip 2144Z1201 , item 21 in the exploded view; 2 units per earpiece.
• K121 Studio : Foam strip 2144Z12010 , Pos. 16 ; 2 pcs per earpiece.
• K142 HD : Foam strip piece 2144Z12010 , Pos. 16 ; 2 pcs per earphone.

Nomenclature note: AKG uses very close references depending on the generation. For K141, the strip appears as 2144Z1201 ; for K121/K142, it is listed as 2144Z12010 , maintaining the same function and location.

Product benefits

• Restores original performance by restoring the sealing and cushioning expected by AKG.
• Reduces parasitic noises (light vibrations/rattles) resulting from fatigued foams.
• Sound uniformity in rental parks or studios with multiple units of the same model.

Use cases

• Repair of K141/K121/K142 with loss of internal seal after years of use or cleaning.
• Preventive maintenance in studios, broadcast and education to maintain stereo coherence .

Frequently Asked Questions

How many pieces do I need?
Each complete earpiece uses 2 strips (one per side/capsule), according to the service manuals.

Is it the same as the earpad?
No. This foam is internal to the housing. The ear cushions are separate parts (e.g., “Ohrpolster” 2144Z1601/2144Z16010/2144Z16020 depending on the model).

Can I assemble it myself?
It is a simple intervention, but qualified personnel are recommended to avoid damaging the wiring, driver or the adjacent disc/scheibe.

Related references of the set (indicative)

• Damper/Ring : 2144Z1001 (K141), 2144Z10010 (K142).
• Disc/Scheibe : 2144Z0801 (K141), 2144Z08010 (K121/K142).
• O-ring (gasket): 6000N00230 (modern K1xx family).

Description for projects

AKG AKG2144Z1201 – Internal foam strip ( Foam strip ) for the capsule housing of AKG K141 headphones (Pos. 21, 2 pcs/headset). Generation equivalence: 2144Z12010 for K121 Studio and K142 HD (Pos. 16, 2 pcs/headset). OEM replacement for sealing and damping inside the capsule housing .