



Phonic Harmony +
Phonic Harmony+ is a composite acoustic ceiling tile from T&R Interior Systems combining a glasswool absorption face with a mineral fibre backer. The monolithic white surface reduces reverberation while the backer layer limits sound transfer across the ceiling plenum, making it one of the higher-attenuating tiles in the Phonic range.
Specifications
- Thickness: 20 mm
- Sizes: 600 x 600 mm and 1200 x 600 mm standard; other sizes on indent
- NRC: 0.70
- Ceiling attenuation class (CAC): 39
- Colours: White, Black; digital printing available on request
- Warranty: 30 years under standard conditions
Applications
Suited to open-plan offices, classrooms, reception areas, meeting rooms, exhibition halls, museums, and medical centres where both sound absorption and plenum attenuation are required. The composite construction addresses environments that need to control both reverberation and cross-plenum flanking noise.
Standards and compliance
Fire tested to ISO 5660.1-2015 (cone calorimeter), Group 1-S classification. Complies with NZBC C/VM2 Appendix A.
Frequently asked questions
How does the mineral fibre backer improve performance over a standard glasswool tile?
The backer adds mass and density behind the glasswool face, increasing the ceiling attenuation class to 39 and reducing flanking sound that passes through the ceiling plenum between spaces.
Is the Phonic Harmony+ available in colours other than white?
Yes. Black is available as a standard option, and custom colours or digital-printed designs can be arranged on request.
What suspended grid does it install into?
It is designed for standard T&R Interior Systems two-way exposed grid suspension systems.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
What is your return policy?
All refunds and returns are determined by the manufacturer's terms of sale. Change-of-mind refunds are not accepted, but all valid warranty claims will be managed by AKA Acoustics in compliance with consumer law.
How long will it take to receive my order?
Freight lead times will be provided upon order confirmation. Standard items typically ship within 4–6 weeks, while custom orders may take 6–12 weeks.
Is my payment information secure?
Yes, all payments are securely processed through Stripe and are protected under their Terms of Service. AKA Acoustics do not store any payment information ourselves.
How are freight costs calculated?
Freight costs are determined at the time of quotation to ensure accurate pricing based on your specific order. For any questions, please email sales@akaacoustics.com
How can I contact support?
For account inquiries, email accounts@akaacoustics.com. For order support, email sales@akaacoustics.com.

