The SPL P8 ADAT is a meticulously engineered 8-channel microphone preamplifier and A/D converter featuring discrete transistor circuit design, per-channel balanced XLR inputs, integrated ADAT outputs, and advanced control functions, making it a superior choice for professional-grade multi-channel recording and digital interfacing.

Preamplifiers with Discrete Technology

The P8 boasts eight identically designed microphone preamplifiers, each constructed with a fully discrete transistor circuit, avoiding the use of ICs to ensure an exceptional level of audio transparency and precision. This design aligns with high-end professional standards, offering remarkable sound clarity and fidelity. The preamplifiers deliver a gain range from +8 dB to +62 dB, accommodating even the most demanding microphones and capturing every nuance of the input source.

Advanced Per-Channel Features

Each preamplifier includes individually adjustable controls and features tailored for professional audio recording. A 48V phantom power switch supports condenser microphones, while the PAD function attenuates input signals by 20 dB, enabling the processing of high-output sources like brass or percussion. The phase inversion function flips signal polarity by 180 degrees, ensuring phase coherence in multi-mic setups. Additionally, an 80 Hz high-pass filter reduces subsonic noise with a 6 dB per octave slope, enhancing overall recording clarity.

High-Quality Input and Output Connections

The P8’s microphone inputs use Neutrik XLR sockets with gold-plated contacts for reliable, balanced signal transmission at a nominal level of 0 dBu. The device includes two DB25 connectors for analogue outputs, allowing the line-level signals from all eight preamps to interface seamlessly with multi-channel converters or secondary recording systems. An optional ADAT A/D converter replaces one DB25 output with optical digital outputs, enabling direct connection to audio interfaces with ADAT inputs.

State-of-the-Art A/D Conversion

The optional digital converter features the renowned AKM AK5538 ADC chip, delivering outstanding sound resolution with sampling rates up to 192 kHz. It ensures pristine audio fidelity during the transition from analogue to digital, maintaining the integrity of the original signal. Two optical ADAT outputs provide compatibility with a wide array of audio interfaces. The Word Clock input and output ensure synchronisation with external devices, while a termination switch optimises clock stability when required.

Precision Control and Maintenance

The AD converter includes a button for selecting sample rates (ranging from 44.1 kHz to 192 kHz) or external clock sources via Word Clock input. A USB service port facilitates firmware updates, ensuring the unit remains up-to-date with the latest software advancements. However, this port is for maintenance only and does not support audio transmission.

Rugged Build with Timeless Design

The SPL P8 ADAT features a robust 4 mm anodised aluminium front panel and solid aluminium knobs, exuding professional aesthetics and durability. The powder-coated steel chassis further enhances its resilience, ensuring long-lasting performance. Designed and manufactured in Germany with through-hole technology for critical components, the P8 reflects unparalleled craftsmanship and a commitment to sonic excellence.

Exceptional Audio Performance

The P8 delivers superior technical specifications, including an extended frequency range of 15 Hz to 200 kHz, ultra-low noise levels at -94 dBu, and minimal harmonic distortion of 0.003% at 39 dB gain. Its exceptional common-mode rejection ratio ensures clean and interference-free signal processing, making it ideal for demanding recording environments.

The SPL P8 ADAT stands out as a comprehensive solution for high-quality audio recording, combining discrete preamplification, cutting-edge A/D conversion, and precision engineering to meet the needs of professional sound engineers and studios.