The Citronic D4350 is a quad-channel Class-D power amplifier that delivers impressive performance in a lightweight, slimline 1U rack format. Designed for both portability and installation use, it combines high-efficiency switch-mode power with Citronic’s proprietary “Cool Guide” airflow system for reliable, cool operation under demanding conditions. Its flexible configuration modes allow it to adapt seamlessly to quad, stereo, or 2.1 system layouts, making it a versatile solution for professional audio setups.
Constructed as a 19-inch, 1U rack-mount amplifier, the D4350 is compact and robust, offering excellent power-to-size ratio. Its efficient Class-D topology reduces weight and power consumption while maintaining sonic integrity. Connectivity is professional-grade, with balanced XLR inputs and secure SPK (speakON-compatible) outputs for reliable integration with PA and installed systems.
| Specification | Details |
|---|---|
| Amplifier Topology | Class-D with switch-mode power supply |
| Rack Format | 1U, 19-inch rack-mount |
| Channel Configurations | Quad (4 × mono), Stereo (2 × pairs), 2.1 system |
| Pair Modes | Bridged or parallel mono |
| Filters | Channel A: switchable 120 Hz low-pass Channels C/D: switchable 120 Hz high-pass |
| Power Output (4 Ω) | 4 × 350 W RMS |
| Power Output (8 Ω) | 4 × 200 W RMS |
| Bridged Output (8 Ω) | 2 × 700 W RMS |
| Inputs | 4 × XLR female balanced; sensitivity: 0 dB = 0.775 Vrms |
| Speaker Outputs | 4 × SPK (speakON-compatible) |
| Cooling System | Proprietary “Cool Guide” managed airflow |
| Mains Power | 220–240 V AC, 50/60 Hz (IEC) |
| Dimensions (W × D × H) | 482 × 248 × 44 mm (without feet) |
| Weight | 5.083 kg |
| Included Accessories | IEC mains lead |
The D4350 delivers high headroom with clear, punchy sound across all operating modes. Its adaptive filter options simplify integration with subwoofers and mid/high enclosures, while bridged and parallel mono modes give installers flexibility in power delivery. Reliable protection systems and efficient cooling ensure consistent performance during long sessions or high-demand environments.
Q: Can the D4350 be used to power both subwoofers and mid-top speakers?
A: Yes, Channel A features a low-pass filter for subwoofers, while Channels C and D provide high-pass filtering for mid-top speakers, making it well-suited for mixed system setups.
Q: Is the amplifier suitable for both portable and installed systems?
A: Absolutely. Its compact 1U design and lightweight build make it easy to transport for mobile use, while its robust construction is also ideal for permanent installations.
Q: How much power does the D4350 deliver per channel?
A: It delivers 350 W RMS per channel at 4 Ω, 200 W RMS per channel at 8 Ω, and up to 700 W RMS per channel when bridged at 8 Ω.
Q: Does the unit offer protection against overloads?
A: Yes, it incorporates peak limiting and comprehensive protection circuits to safeguard both the amplifier and connected speakers.
Q: What comes included in the box?
A: The package includes the D4350 amplifier unit and an IEC mains lead. Manuals and conformity documentation are available via download.
