SPECIFICATIONS

Note:

SigmaStudio programming require the separate purchase of an ICP5 programming board.

This product is factory‑preset to mute mode with the volume level set to minimum. After completing all wiring connections, please unmute the device and adjust the volume to the desired level. Thank you for your attention.

1. Equipped with original ADI ADAU1452 professional 32-bit DS chip. Signal-to-noise ratio up to 105dB, THD+N as low as 0.002%. Eliminates noise, background hum and audio distortion, solves muddy sound and poor sound staging caused by ordinary passive crossovers.

2. 2-channel unbalanced RCA input + 4-channel RCA output. Built-in native 2-way digital crossover. Independent subwoofer & mid-high frequency channel outputs. No extra external crossover required, realizes low & high frequency separation in one unit.

3. Built-in high-precision 32-bit ADC/DAC. Input: 1Vrms, Output: 2Vrms with sufficient dynamic range. Delivers transparent vocal and tight bass, perfectly upgrades sound quality for home speakers and DIY power amplifiers.

1. Physical hardware control via 4 rotary knobs + 2 DIP switches: Master Volume, Bass Gain, Crossover Frequency, Treble/Bass Balance, quick manual adjustment without PC. Supports mute function and 180° phase inversion to fix speaker phase cancellation and weak bass issues.

2. In-depth visual tuning via SigmaStudio on PC. Standard ICP5 programming interface, open-source demo projects + official Hex firmware. Freely customize crossover frequency (default 90–320Hz adjustable), EQ, signal delay and limiter. Professional fine tuning to overcome the limitation of fixed crossovers that cannot match different speakers.

1. Type-C 5V/1A low-voltage power supply. No high-power DC adapter needed; works with ordinary phone chargers. Suitable for car audio, desktop setup and home theater, neat wiring without high-voltage risks.

2. Full RCA jacks, plug-and-play. Compatible with smartphones, media players, TVs and various amplifier boards. Dual subwoofer outputs + dual mid-high outputs, directly drive subwoofers and full-range speakers. Ideal for bookshelf speakers, DIY audio systems, home cinema and instrument audio equipment.

3. Compact dimension: 90.81×156.21×27.31mm. Metal housing with anti-slip rubber feet, space-saving for desktop placement and friendly for DIY chassis modification.

1. Complete open-source resources: Official demo projects, factory reset firmware, programming tutorial videos & graphic guides. Beginners can quickly master SigmaStudio tuning.

2. Industrial-grade stable circuit, stable operation from 0℃ to 40℃. Full parameter inspection before shipment. Custom panel silkscreen available for bulk orders, perfect for audio modification vendors.

3. Complete package including main unit, quick start guide and anti-slip feet. RCA cables and Type-C cables use universal common accessories, no need to purchase expensive dedicated wires separately.

Description

BDSP2.4U MAX is a powerful digital audio signal processor featuring the Analog Devices ADAU1452 DSP with a 2 in, 4 out unbalanced configuration. The fully digital signal chain, incorporating independent PCM1822 ADC and PCM5122 DACs, delivers low loss, high precision conversion with 105 dB SNR, 0.002% THD+N, and a 5.5 µV noise floor – making it ideal for high power audio systems and outperforming traditional analog crossovers with pure, transparent sound. Front panel rotary knobs and mute/phase switches enable real time balance/bass/crossover/volume tuning without a PC, while SigmaStudio graphical programming, the ADAU1452 with abundant resources, open-source demo programs, and factory-recovery firmware cover everything from quick setup to in depth customization. With a maximum input of 1 Vrms (compatible with phones, PCs, CD players, etc.) and maximum output of 2 Vrms, it adapts flexibly to a wide range of devices. The sandblasted anodized aluminum enclosure offers both premium aesthetics and efficient heat dissipation; standard RCA jacks and USB Type C power enable plug and play integration, seamlessly fitting into desktop, rack, or DIY speaker systems.

All-Digital Processing for Cleaner, More Enjoyable Sound

The BDSP2.4U MAX delivers 105 dB SNR, 0.002% THD+N, and a 5.5 µV noise floor – outperforming traditional analog crossovers when paired with high power audio systems. At its core, the ADAU1452 DSP enables a fully digital signal path that eliminates analog loss from input to output, featuring a complete digital signal chain and fully isolated architecture to preserve pristine sound quality. Independent PCM1822 ADC and PCM5122 DAC converters ensure low loss conversion and exceptional detail retrieval, while full link digital signal transmission and full isolation between I/O and power supply further enhance signal integrity.

Real time Control & Visual Status for Balance / Bass / Crossover / Volume

BDSP2.4U MAX extends the GPIO of the ADAU1452 DSP to the front panel, featuring four potentiometers for independent control of volume, crossover cut-off frequency, bass gain, and balance. This enables real time, intuitive tuning without the need for a PC – each knob provides clear tactile feedback, allowing personalized settings to be dialed in within seconds and significantly improving tuning efficiency for both DIY enthusiasts and professional users alike. In addition, two toggle switches are provided for mute and phase control. Power and data status are clearly indicated by dedicated front panel LEDs. The adjustment range of each potentiometer and the function of each interface can be fully customized via SigmaStudio, offering maximum flexibility for advanced applications.