AKG 2575H00090 - Capsule for AKG C520

AKG 2575H00090 - Replacement Capsule for C520 / C520 L Headset Microphone

The AKG 2575H00090 is the original (OEM) capsule for the AKG C520 headset microphone in its two variants (C520 with XLR and C520 L with mini XLR for bodypacks and adapters). This replacement replaces the cardioid condenser transducer responsible for the C520's sound, returning the factory sound pressure level, sensitivity and tonal character when the original capsule has failed due to impact, humidity or wear. In the manufacturer's service documentation, the C520 capsule is listed as "Capsule" in position 7 of the exploded view (historical reference 2575Z00090 for C520/C520 L), while the current commercial reference is distributed as 2575H00090 .

As a genuine AKG part, it maintains tolerances, fasteners, and internal seals, ensuring compatibility with the C520's damping shield and elastic arm mount. Replacement should be performed by qualified service personnel following the service procedure to preserve the integrity of the wiring and shielding.

Main features

• Official AKG replacement for the C520 and C520 L models.
• Polar pattern: cardioid (as on the C520 microphone).
• Transducer type: Condenser (pre-polarized), optimized for singing and speech.
• Current reference: 2575H00090 (C520 capsule); reference in service manual: 2575Z00090 (Pos. 7).
• OEM Fit: Identical fit and seal; compatible with the C520's damping screen and shock mount.
• Supply unit: 1 capsule (does not include foams, grids or external accessories).

User benefits

• Restores the original C520 sound in clarity, off-axis rejection, and output level.
• Reliability for touring and broadcast : AKG tolerances to minimize mechanical noise and sweat/humidity problems.
• Continuity of service in rental fleets and facilities by quickly replacing the damaged capsule.

Use cases

• Repair of C520/C520 L with loss of sensitivity, abnormal noise or impact damage.
• Corrective maintenance due to intense exposure to humidity and sweat on stages and sets.
• Inventory standardization with 100% original AKG spare parts.

Frequently Asked Questions

• Is it valid for the C520 L as well as the C520 “XLR”? Yes, the C520/C520 L parts list is common to both variants.
• Is windscreen foam included? No. The front foam is purchased separately (e.g., W44 for the C520/C555 family).
• Does the polar pattern or equalization change? No. Being an OEM product, it retains the cardioid pattern and response intended by AKG for the C520.
• Does it need phantom power? Power depends on the system: the C520 with XLR uses 9–52 V phantom power ; the C520 L is powered via an AKG bodypack or adapters (B29 L, MPA VL).

Description for projects

Original cardioid condenser capsule for the AKG C520/C520 L; reference 2575H00090 (documented equivalent in service manual: 2575Z00090 , item 7); delivery: 1 unit; installation by a qualified technician; accessories not included (foams/grilles must be ordered separately).