SPL P8 ADC - Eight-Channel Microphone Preamp with AD Converter
SPL P8 ADC - Eight-Channel Microphone Preamp with AD Converter
P8 is equipped with eight identically designed microphone preamplifers. All eight preamps have a discrete design – without ICs, made of individual transistors. This is typical for absolute high-end preamplifers and is one of the main reasons for the outstanding sound.
Besides an analog gain control for adjusting the preamplifcation, each of the eight preamps features an individually switchable phantom power supply (48 V), a PAD switch, a phase inversion function and a switchable analog high-pass filter.
With the optional eight-channel ADAT converter, the purely analog P8 can be digitally connected to audio interfaces.
P8 paves the way for high-quality multi-channel recording sessions.
Microphone inputs
The eight microphone inputs of the P8 are equipped with Neutrik XLR sockets and gold-plated contacts. The signal transmission is electronically balanced, at a nominal level of 0 dBu.
Purely analog or with AD converter
P8 can also be confgured with an optional eight-channel AD converter with ADAT outputs. The digital outputs replace the second analog eight-channel DB25 output of the P8. This allows P8 to be connected directly to the digital ADAT inputs of an audio interface.
The AD converter
The converter chip in the optional digital-to-analog converter is the highly acclaimed AKM AK5538 ADC chip, which thanks to its architecture reproduces the fnest sound details.
The AD converter converts analog audio signals with sampling rates of up to 192 kHz and therefore recommends itself as the frst choice for transferring the maximum sonic quality of the microphone preamps of the P8 to the digital world.
ADAT
The optional AD converter provides two optical ADAT outputs (TOSLINK) and thus ofers compatibility with a wide range of audio interfaces.
Word Clock
The word clock connection panel of the optional AD converter contains one clock input and output each as well as a switch for terminating the clock input.
The AD converter processes standard word clock signals incoming and generates them outgoing, thus ensuring perfect digital transmission and the highest sound quality.
SPL P8 ADC Specifications
- Maximum input level (Mic, +8 dB – +62 dB): 13,5 dBu
- Input impedance (Mic/Line): 10 kΩ
- Output impedance: 75 Ω
- Frequency range: 15 Hz – 200 kHz
- Equivalent Input Noise (EIN): -124 dBu
- Noise (A-weighted, Mic Preamp, 150 Ω, 30 dB Gain): -94 dBu
- Noise (A-weighted, Mic Preamp, 150 Ω, 62 dB Gain): -66 dBu
- Common mode rejection ratio (CMRR, 1 kHz) Mic Input: < 78 dB
- THD+N Ratio (1 kHz), Mic 30 dB Gain: 0,003 %
- THD+N Ratio (1 kHz), Mic 63 dB Gain: 0,022 %
- Signal display: Green -25 dBu; Yellow 0 dBu
- -3 dBFs (with AD converter): +12 dBu
- Operating voltage for audio electronics: +/-18 V
- Operating voltage for relays and LEDs: +12 V
- Phantom power: +48 V
- Operating voltage AD converter card: +12 V / +3,3 V
- Mains voltage (selectable, see fuse chamber): 230 V AC / 50 Hz; 115 V AC / 60 Hz
- Fuse for 230 V: T 315 mA
- Fuse for 115 V: T 630 mA
- Power consumption: max. 27 VA
- W x H x D (width x height x depth): 482 x 44 x 237 mm/19 x 1.73 x 9.33 inch
- Unit weight: 4,15 kg/9,15 lbs
- Shipping weight (incl. packaging): 5,4 kg/11,9 lbs