![Pre-owned) 5.0 JBL ES speaker system in Black (4 x JBL ES30 + 1 x JBL ES25C) for Sale in Monterey Park, CA - OfferUp Pre-owned) 5.0 JBL ES speaker system in Black (4 x JBL ES30 + 1 x JBL ES25C) for Sale in Monterey Park, CA - OfferUp](https://images.offerup.com/W8OwTAgME2hnd5sPp78j0LR34qE=/900x674/f524/f52411552021442486e542040c8de665.jpg)
Pre-owned) 5.0 JBL ES speaker system in Black (4 x JBL ES30 + 1 x JBL ES25C) for Sale in Monterey Park, CA - OfferUp
![JBL ES25C sound / Highs UPGRADE - mainboard modification Central speaker; testing with STUDIO MIC. - YouTube JBL ES25C sound / Highs UPGRADE - mainboard modification Central speaker; testing with STUDIO MIC. - YouTube](https://i.ytimg.com/vi/5NMksDPCgcc/hqdefault.jpg)
JBL ES25C sound / Highs UPGRADE - mainboard modification Central speaker; testing with STUDIO MIC. - YouTube
![Pre-owned) 5.0 JBL ES speaker system in Black (4 x JBL ES30 + 1 x JBL ES25C) for Sale in Monterey Park, CA - OfferUp Pre-owned) 5.0 JBL ES speaker system in Black (4 x JBL ES30 + 1 x JBL ES25C) for Sale in Monterey Park, CA - OfferUp](https://images.offerup.com/IClYMDZGfDMlMfu0lhMZLhJARbA=/333x250/f753/f75318680a58405182c876d685fd8c1d.jpg)
Pre-owned) 5.0 JBL ES speaker system in Black (4 x JBL ES30 + 1 x JBL ES25C) for Sale in Monterey Park, CA - OfferUp
![JBL ES25C sound / Highs UPGRADE - mainboard modification Central speaker; testing with STUDIO MIC. - YouTube JBL ES25C sound / Highs UPGRADE - mainboard modification Central speaker; testing with STUDIO MIC. - YouTube](https://i.ytimg.com/vi/5NMksDPCgcc/mqdefault.jpg)