Aurum Cantus Grand Harmony Dual 8 Inch Speaker HIFI Floor Standing Speaker Active Loudspeaker Piano Paint 420W 8Ohm

Great Harmony Classic Edition

DSP electronic frequency divider active Hi end speaker

The GrandHarmony Classic is currently the highest end model among Gold DSP electronic crossover active speakers, integrating cutting-edge technologies and processes such as Gold Hi end speakers, OceanSound advanced digital audio architecture, and fully handmade piano paint cabinets. Based on a systematic development concept, it has built a streamlined and efficient high fidelity playback system.

Only one audio source is needed to form a complete audio system, which can be fully controlled through the built-in pre amplifier and full-featured remote control. Each speaker is equipped with three linear ultra-low resistance power supplies, three 24 bit 192kHz PCM decoding modules for tweeter mid bass, and three amplifier amplifiers; Although it is an integrated design, it adopts a completely independent Hi Fi level circuit architecture internally to ensure pure performance.

·GrandHarmony Classic Upgrade Instructions:

1. Newly optimized high-frequency performance of hybrid module;

2. Upgrade and optimize mid range and bass units, improve the damping characteristics of the unit diaphragm, and further enhance the transient, dynamic, analytical force, and density of the entire frequency band;

3. Optimize the hardware of the digital audio circuit and upgrade the software framework to OCEANSound2.2 version. The PCM digital to analog conversion capability is more accurate, greatly improving the decoding performance of high bitrate music files;

4. Optimize the power filtering characteristics and improve the system's anti-interference ability.

September 1, 2025

Piano lacquer

Aluminum base

Hybrid treble

Midrange at 6.5 o'clock

Double eight bass

Three power sources

Three way decoding

Three channel amplifier

Electronic frequency divider

Aurum Cantus DSP electronic frequency divider active speaker, built with a systematic research and development concept for audio architecture. From the speaker unit to the power supply and circuit, from pre, decoding, amplifier to internal transmission lines, from digital audio framework, digital filters to core algorithms, each link is precisely matched and optimally matched. This comprehensive collaborative optimization endows the Great Harmony speaker with an extremely high audio playback quality limit. Whether it is the delicate and melodious classical music or the passionate and surging pop music, all types of music can be accurately reproduced..

In the sacred hall of music, the Aurum Cantus Grand Harmony Classic is like a sparkling movement. As a versatile and high specification DSP electronic crossover active high fidelity speaker, it is like a delicate and meticulous artist, accurately capturing the soul of every note. For music enthusiasts who have the ultimate pursuit of sound quality and detail restoration, it is the key to opening the door to pure music. It can penetrate through layers of audio tracks, accurately restore the creative intentions and emotional expressions of music creators, singers, musicians, and recording artists, making music lovers feel as if they are in the music scene, deeply empathizing with every soul in the music.

Performance parameters

Product Name: Four channel five unit Hi end active speaker

Model: Grand Harmony Classic

Speaker unit:

        Tweeter2i+AST2560 Hybrid Module

        Mid AC165/DC50SC-2MKII

        Bass AC200/DC50C2CMKI (two)

Tweeter Diaphragm: Aurum Cantus Wave Aluminum Strip Diaphragm

Aurum Cantus self-developed special silicide diaphragm

Pneumatic Tweeter diaphragm area 114mm × 70mm=7980mm?

Mid Bass Diaphragm: Improved Non woven Carbon Fiber Sandwich Composite Diaphragm (in collaboration with ATD Italy)

Mid – range bass voice coil:

Mid – range 50mm CCA Electronic Damping Coil Technology

Bass 50mm CCA Electronic Damping Coil Technology

Box material:

Customized MDF+Solid Wood Leather Piano Paint/Black Piano Paint/White Piano Paint

Frequency response: 26Hz-40KHz (± 3dB)

Frequency division points: 200Hz, 2200Hz, 5000Hz

Phase correction point: 12000 sampling points

Maximum sound pressure: peak 119dB

Amplifier power:

Tweeter100W

Mid 180W

Bass 420W

Amplifier type:

Tweeter Class AB

Mid AB Class

Bass Class D

Input interface:

Analog XLR, Analog RCA, Digital Coaxial COX, Digital Fiber Optic OPT, High Definition Bluetooth

Bluetooth standard: Bluetooth 5.0 (supports aptX, aptXHD)

performance parameters

Digital input:

Supports PCM digital audio signals at 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, and 192KHz

Input impedance:>22K Ω (balanced)

Total harmonic distortion:<0.01%

Indicator light: power/working status

Protection: Output overcurrent protection, overheating protection, limiting protection

AC power requirement: 220V/50Hz ± 10%

Standby power:<0.5W (remote shutdown)

Size: Width 360mm, Height 1200mm, Depth 495mm (including face mask)

Weight: 68Kg/piece