4X3500HDS-U-USFX - Uncategorized CROWN - Free user manual and instructions
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| Product Type | Professional Power Amplifier |
| Brand | Crown |
| Model | 4X3500HDS-U-USFX |
| Number of Channels | 4 |
| Output Power | 3500W per channel (4 ohms) |
| Dimensions (W x H x D) | 19 x 3.5 x 19 inches (482.6 x 88.9 x 482.6 mm) |
| Weight | 45 lbs (20.4 kg) |
| Power Supply | 120V AC, 60Hz |
| Cooling | Variable speed fans, front-to-rear airflow |
| Protection | Short circuit, thermal, overload, DC fault |
| Inputs | XLR and 1/4" TRS balanced |
| Outputs | Binding posts and Speakon connectors |
| Frequency Response | 20Hz – 20kHz ±0.5dB |
| Total Harmonic Distortion | <0.1% |
| Signal to Noise Ratio | >100dB |
| Construction | Steel chassis, rack mountable with included ears |
| Application | Sound reinforcement, touring, installation |
| Controls | Front panel power switch, individual gain controls per channel |
| Indicators | Power, signal, clip, protect LEDs per channel |
| Compliance | UL, CE, RoHS, FCC |
| Accessories Included | Power cord, rack ears, user manual |
Frequently Asked Questions - 4X3500HDS-U-USFX CROWN
How do I set the gain on the Crown 4X3500HDS-U-USFX?
To set gain, turn the gain control fully counterclockwise, then slowly increase while playing audio at nominal level. Use the clip indicator to avoid distortion; aim for occasional flicker on peaks.
Can this amplifier be bridged?
Yes, the 4X3500HDS supports bridging across two channels. Refer to the manual for specific wiring: connect the positive to channel A's positive and negative to channel B's positive for bridged output.
What are the power requirements?
This amplifier requires a 120V AC, 60Hz supply with a minimum 20A circuit. Always use a dedicated power outlet to avoid ground loops.
How do I clean and maintain the amplifier?
Disconnect power before cleaning. Use a dry, soft cloth to wipe the exterior. For dust inside, use compressed air directed at the front and rear vents. Do not use liquids.
What protection features does this model have?
It includes short circuit, thermal, overload, and DC fault protection. The amplifier will mute or shutdown if any fault is detected, and the protect LED will illuminate.
Can it drive 2-ohm loads?
The 4X3500HDS is designed for 4-ohm minimum loads per channel. Operating at 2 ohms may cause overheating or tripping protection. Use 4 ohms or higher for reliable performance.
What type of input connectors are used?
Inputs are XLR and 1/4" TRS balanced connectors. Use shielded cables for best noise rejection.
Is the amplifier fan noisy?
The fans are variable speed and temperature-controlled. At low signal levels, they are quiet. Under heavy load, they may become audible but remain within professional standards.
What is the warranty period?
Crown typically offers a 3-year warranty for professional amplifiers. Check your purchase documentation for exact terms.
Can I use this amplifier for subwoofers?
Yes, it works well with subwoofers. Ensure the crossover is set appropriately on your DSP or mixer. The amplifier's high power output is ideal for low-frequency drivers.
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USER MANUAL 4X3500HDS-U-USFX CROWN
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Product information
Brand : CROWN
Model : 4X3500HDS-U-USFX
Category : Uncategorized