ALP-DANTE-LE PCIe Sound Card

The ALP-DANTE-LE PCIe sound card delivers professional audio performance, designed for small form-factor environments requiring 24/7 operational reliability. With low-profile PCIe form factor and fanless design, this card offers superior audio quality, ideal for studio and broadcast applications. It supports multiple operating systems, including Windows and Linux, and integrates seamlessly with Dante networks. Equipped with advanced audio I/O options, high-resolution converters, and zero-latency FPGA-based mixing, the ALP-DANTE-LE ensures maximum flexibility and performance in professional audio setups.

Complete with adjustable analog and digital gain controls, multi-application API support, and comprehensive management software for up to eight cards, this sound card allows full customization for real-time audio control and synchronization. Whether in recording studios or live broadcast environments, the ALP-DANTE-LE provides robust audio performance, backed by Digigram’s precision engineering.

Key Features

• Low-profile PCIe with fanless design
• Supports Dante, AES67, and SMPTE 2110-30 protocols
• Zero-latency FPGA-based mixer with real-time monitoring
• Compatible with Windows 10/Server 2019, Linux (Ubuntu, Debian, RHEL)
• Multiple audio input/output options, including AES3
• Adjustable gain controls and clock synchronization
• Multi-card and multi-application support

Technical Specifications

Dimensions
Low profile: L: 168 mm x H: 69 mm x l: 20 mm (6.6" x 2.7" x 0.8")
Standard profile: L: 168 mm x H: 99 mm x l: 20 mm (6.6" x 3.9" x 0.8")
Form Factor
Low profile PCIe (Additional full-height bracket for standard slots)
Expansion Bus
PCI Express™ (PCIe™) x1 (compatible with x2, x4, x8, x16 slots)
Supported OS
Windows: Windows 10 and Server 2019
Linux: Ubuntu 20.04 (kernel 5.15), Ubuntu 22.04 (kernel 6.5), Debian 11 (kernel 5.10), Debian 12 (kernel 6.1), RHEL 9 (kernel 5.1)
Drivers
Windows: ASIO, Wasapi/DirectSound
Linux: ALSA
One Driver Package with multi-application API
Inputs
2 Balanced Mic/Line inputs
A/D Converter: 24-bit / 192 kHz
Maximum input level/impedance: +24 dBu / >10 kΩ
Adjustable analog gain: -88 dB to +39 dB (0.5 dB steps)
Adjustable digital gain: -90 dB to +12 dB (0.1 dB steps)
Outputs
2 Servo-balanced line outputs
D/A Converter: 24-bit / 192 kHz
Maximum output level/impedance: +24 dBu / <100 Ω
Adjustable digital gain: -90 dB to +12 dB (0.1 dB steps)
1 Stereo headphone output (20 mW for 600 Ω)
Digital Inputs/Outputs
1 stereo AES3 input
1 stereo AES3 output
Sample rate: 32, 44.1, 48, 64, 88.2, 96, 128, 176.4, 192 kHz
Synchronization
1 AES11 synchronization input
1 Word Clock synchronization input
1 Word Clock output
Frequency Response
20 Hz – 20 kHz @48 kHz
Inputs: ±0.5 dB
Outputs: ±0.08 dB
SNR
Inputs: >110 dBA (A-weighted), >108 dB (unweighted)
Outputs: >115 dBA (A-weighted), >112 dB (unweighted)
THD + Noise
Inputs: <-96 dB @18 dBu (1 kHz)
Outputs: <-101 dB @18 dBu (1 kHz)
Crosstalk
Inputs: -111 dB @1 kHz / -110 dB @15 kHz
Outputs: -130 dB @1 kHz / -111 dB @15 kHz
Channel Phase
Inputs: <0.01° @1 kHz
Outputs: <-7.5° @1 kHz
Sample Format
PCM (8, 16, 24, 32 bits), Float IEEE754
Breakout Cable
Length: 1 m
XLRs for audio I/Os and AES11 input
BNC for Word Clock I/O
DB9 for GPIO
Interboard Synchronization
Connect up to 8 ALP-X cards linked with an inter-board sync cable
Internal Clock (kHz)
11.025, 16, 22.05, 24, 32, 44.1, 48, 64, 88.2, 96, 128, 176.4, 192
AES11 (kHz)
32, 44.1, 48, 64, 88.2, 96, 128, 176.4, 192
Word Clock Input (kHz)
32, 44.1, 48, 64, 88.2, 96, 128, 176.4, 192
Headphones
3.5 mm TRS female jack