This page contains testimonials, public comments and reviews from past clients
Service provided: Sound System Optimization (ca. 2017)
"After struggling for over a year to find the proper equalization in our church sound system, we were fortunate to find Hadi Sumoro. Our church sound system has excellent Community Speakers, but finding the right tonal balance throughout the church was elusive. The diagnostic equipment Hadi used, all at the service of his years of experience, created the tonal balance and clarity that had been lacking in our sound system. I would highly recommend Hadi as a sound technician and audio tuner. From my experience, I can tell no project is too big or small for Hadi Sumoro."
Rev. Jesse L. Bolger
St. Joseph Church
Fullerton, MD, USA
Service provided: Complete Acoustic Design for a Performance Hall and Sound System Design & Optimization (ca. 2007)
Our concert hall was designed by Hadi Sumoro back in 2007. It had just the right reverberation time, allowing warm sound in the hall. Hadi also did a wonderful job in keeping a good quality of intelligibility of speech and singing. Every few years, Hadi also helped tune the sound system. We highly recommend Hadi Sumoro for his professionalism, expertise, integrity, and work ethics in the field of sound & acoustics.
Jl RS Fatmawati no 8
Pondok Labu, Jaksel 12450
Service provided: Interior Acoustic Design (ca. 2013)
Partially translated to English
"... I could feel huge improvements on monitoring with my trusty Yamaha HS-80M. The stereo image is very well defined, the bottom is rock solid without smearing, highs are clear, mids are pronounced, you could hear the fine details that previously only available by using headphones! I could say that clarity is the best word to describe the overall sound in the listening sweet spot.
The other side of the room has less reverb yet not dead. Excellent for tracking vocals and acoustic guitar. The sound is so focused, no more smearing, no more roominess, yet it still sounds alive and not dead like when you used too much absorbent material. Increasing the distance between sound source and microphones does not introduce room reverb, instead the sound just move farther away but still very focused.
Overall, I am so impressed with this room. It is more than what I expected earlier. Great work Mr. Hadi!
I recommend Hadi Sumoro to everyone reading this -- I believe nobody will be disappointed :)"
MA:IN Audio Production
Service provided: Interior Acoustic Design for a Live Room (ca. 2012)
Partially translated to English
"Bro Hadi, I want to follow up with the renovation. It's finished and the room is really cool. The result (based on what I hear):
Annoying mid high is gone
Aggressive high is smooth
Flutter echoes and room modes are fixed
Reverb decay is really pleasant
All sounds in this room become more focused, much better clarity (especially for vocal recording, the top end is not harsh at all) and from now on, I use a drum mic for drum recording ...."
Owner and Principal Engineer
Roemah Iponk Music Studio and Coffee House
Jln Permata Sari, Ruko Little Asia no 656
Lippo Karawaci, Indonesia
Service provided: Complete Acoustic Design for a Rehearsal Space (ca. 2011)
Translated to English
"After the renovation, we tested the instruments together, with my father. Wooow Hadi, for our regular ears, the sound is really good, vocal is very clear, my guitarist said how clear the location of the amp and the drum tone is very stable. The bass ... no more unclear bass sound anymore! Sophisticated! Again, for our regular ears! We are very satisfied (compared to the 'other' reference studio I told you about previously). After additional rockwool on the door area, the waiting room can't hear much of what is played inside the rehearsal room, just very faint certain frequencies only. GREAT!"
"... Expensive equipment are not useful unless supported by the acoustics. Equipment will be maximized with the good acoustics..."