By: Aufa Nuqman 

Seimenggaris, North Kalimantan, Indonesia – Nestled in the quiet rural township of Seimenggaris, the newly constructed Gereja Anglikan Kristus Raja Damai has become a spiritual sanctuary for the local Christian community. Built to accommodate a growing congregation and increasingly dynamic worship services, the church sought a professional audio system capable of supporting both reverent sermons and vibrant worship music with equal clarity.

To meet this vision, the church partnered with DK Pro Audio—a seasoned system integrator with a proven track record in house-of-worship sound reinforcement. Known for its consultative approach and technical expertise, DK Pro Audio worked closely with the church team to deliver a solution that met both performance demands and operational simplicity. Equipment for the project was supplied through AV Electronics Marketing, a trusted distributor of professional audio brands across Southeast Asia.

The Goal: Clarity and Immersion in Worship

With a mix of sermons, choral arrangements, and live instruments forming the core of Sunday services, the church needed a system that could faithfully reproduce both speech and music—even in a space with reflective surfaces and uneven acoustics.

"The main concern was vocal clarity across the room, followed by musical warmth and bass presence, especially during praise and worship segments," shared a member of the church committee. "We wanted a solution that lifted the spirit, not just the volume."

The System: Topp Pro Line Array and IVA Digital Processing

After careful site assessment, DK Pro Audio specified a scalable and powerful system centered around Topp Pro’s FLX Series and IVA’s speaker management platform.

Installed System Components:

• 16 × Topp Pro FLX 5 compact line array modules

• 4 × Topp Pro KS18S high-performance subwoofers

• 2 × TD500.4DSP V2 multi-channel DSP amplifier

• 1 × IVA DPM-4.13 MKII power amplifier

To power and optimize the TOPP PRO FLX 5 speakers, DK Pro Audio selected two TD500.4DSP V2 amplifiers—each offering 4 channels of clean output and built-in DSP functionality. These units enabled the team to precisely tune speaker zones using onboard EQ, crossovers, limiting, and time alignment features. Multiple presets were created to accommodate various service types, from full-band worship to solo preaching and hybrid live streaming.

For low-end reinforcement, the system employs four TOPP PRO KS18S subwoofers, driven by the IVA DPM-4.13 MKII, a high-efficiency power amplifier known for its thermal stability and clean output. Together, this amplification architecture ensures the system performs consistently under varying program material and room conditions.

Tailored for Worship Needs

Throughout the project, DK Pro Audio maintained close collaboration with church leaders, ensuring the system was not only technically capable but also intuitive to operate. The final result balances professional-grade fidelity with day-to-day usability—a key consideration in venues where volunteer operators are common.

Impact: A Transformed Worship Experience

Post-installation, the church has received positive feedback from both the clergy and congregation, who immediately noticed the improved vocal intelligibility and the enveloping sound during worship music.

“Now, every corner of the hall feels connected to the message and the music,” said one church leader. “It’s not just louder—it’s more meaningful.”

With its new Topp Pro and IVA sound system, Gereja Anglikan Kristus Raja Damai has embraced a new era of audio excellence—ensuring every worshiper, from the front pew to the back row, experiences the full emotional and spiritual impact of each service.

Thanks to DK Pro Audio’s thoughtful planning and execution, this North Kalimantan church is now equipped with a system that delivers clarity, warmth, and presence—week after week.