Home / SPL AUDIO ADC8 Optional eight-channel AD converter (ADAT, 24 bit/192 kHz)
Product Overview
Direct Digital Connectivity for the Legendary SPL P8 Preamplifier
The SPL ADC8 converter module bridges the gap between pure analog discrete preamplification and digital studio configurations. Designed specifically for the single-rackspace SPL P8, installing this card upgrades the unit from a standalone analog preamplifier into a complete, high-performance digital tracking front-end.
By default, the SPL P8 preamp sends its balanced analog signals out through a primary DB25 connector. The ADC8 card installs directly into the second output slot on the rear panel, replacing the redundant analog output path with a pair of optical TOSLINK digital outputs. This configuration allows tracking engineers to run their main microphone signals digitally into their DAW audio interface over standard optical cables, while keeping the primary DB25 analog output fully active for parallel analog safety recording or downstream monitor mixing.
Product Description
Premium AKM Conversion Architecture:
The digital translation of the ADC8 is anchored by the highly respected AKM AK5538 24-bit converter chip. Selected for its transparent characteristics and wide dynamic range, this chip captures the fast transient hits, open high-frequency air, and full body generated by the P8’s discrete, transistor-based preamplifier circuits. Operating across single-, double-, and quad-speed sample configurations, it guarantees that every nuanced sonic detail remains uncolored and intact.
Dual ADAT Optical Sockets & Sample Flexibility:
The ADC8 card includes two optical ADAT outputs (TOSLINK) to maintain full 8-channel performance across all sample rates:
Single & Double Speed: Supports baseline 44.1 kHz and 48 kHz, as well as high-resolution 88.2 kHz and 96 kHz tracking arrays across the optical spectrum.
Quad Speed / SMUX: Enables mastering-grade 176.4 kHz and 192 kHz sample processing via standard multiplexing rules, using both optical ports to carry all 8 tracking channels efficiently.
Ultra-Stable Quartz Clocking Matrix:
To avoid digital artifacts and phase drift across multi-channel environments, the ADC8 uses highly accurate internal quartz oscillators to generate a clean, low-jitter master clock. The rear-panel Word Clock connection bay houses dedicated BNC input and output ports. As soon as the card detects an external master clock signal from a studio grid or master converter, it automatically disables its internal oscillators to prevent clock collisions or digital noise.
Intelligent Interface Integration:
A dedicated AD Converter button on the hardware interface lets you easily cycle through target sample rates or engage external Word Clock sync (WCLK). Additionally, the card features an integrated 75-ohm termination switch next to the BNC jacks, ensuring proper impedance matching and preventing signal loss when the card acts as the final terminal device in a word clock line.
Key Features
TAILORED EXCLUSIVELY FOR SPL P8: Integrates as an internal add-on card inside the rear chassis slot of the SPL P8 8-channel microphone preamplifier.
AKM MASTERING-GRADE CONVERTER CHIP: Equipped with the premium AKM AK5538 24-bit chip to capture fine acoustic details.
BROADBAND SAMPLE SPECTRUM: Supports standard and high-resolution tracking speeds: 44.1, 48, 88.2, 96, 176.4, and 192 kHz.
DUAL TOSLINK ADAT OUTPUTS: Two optical ports handle all 8 channels across standard and SMUX high-sample-rate configurations.
LOW-JITTER INTERNAL QUARTZ ENGINE: Employs precise internal quartz clocking to maintain clean digital audio synchronization.
AUTOMATIC DETECT EXTERNAL SYNC: Intelligently deactivates internal clock generation the moment an external BNC clock signal is detected.
MANUAL 75-$\Omega$ TERMINATION SWITCH: Built-in termination switch stabilizes clock networks and prevents signal reflection when active.
FRONT PANEL ASSIGNMENT SELECTION: Quickly cycle through sample speeds or external clock sync modes via a tactile hardware button.
INTEGRATED BACK-RACK UPGRADE: Can be ordered pre-installed from the factory (Build-to-Order) or easily retrofitted later by a qualified technician without opening the main chassis.
DEDICATED MAINTENANCE USB PORT: Includes a Type-B USB service port specifically for executing digital system firmware updates.
