SOUND TOWN ST-UPDM4C Professional Power Amplifier User Manual

SOUND TOWN ST-UPDM4C Professional Power Amplifier

Important Safety Instructions

Waming: To reduce the risk of electric shock, do not disassemble this amplifier. No user serviceable parts inside. Please contact authorized service personnel when need maintenance.
This unit has been engineered and manufactured to assure your personal safety. Improper use can result in potential electrical shock or fire hazards. In order not to defeat the safeguards, observe the following instructions for its installation, use and servicing.

• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow al instructions.
• Do not expose this apparatus to rain or moisture.
• Clean only with dry cloth.
• Do not block any ventilation openings. lInstall in accordance with the manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
• The equipment should be connected to power outlet with grounded protective power grid.
• Protect the power cord from being walked or pinched. Unplug the power cord during lightning stoms or when unused for long periods of time.

Certification Notice

We declare our devices are compliant with the following directives and/or standards 2004/108/EC (Electromagnetic Compatibility) directives.

• EN55103-1, EN55103-2, EN61000-3-2, EN61000-3-3 AND E4, E5
• ELECTROMAGNETIC 2006/95/EC LOW VOLTAGE DIRECTIVES EN60065 ENVIRONMENT
• DIRECTIVE 2004/108/EC ELECTROMAGNETIC COMPATIBILITY DIRECTIVE
• FCC ELECTROMAGNETIC RADIATION DIRECTIVE 15.109
• IEC CISPR Pub.22 ed 6.0 (2008-09) CHAPTER 7.1.1, PART 15.107
• IEC CISPR Pub.22 ed 6.0 (2008-09) CLASS B

Front/Rear Panel Function Diagram

Front Panel:

Rear Panel:

DIP Switch Instructions:

Caution: Do not connect diferent inputs to each side of a channel when these channels are in parallel. Only 1 connected input will feed all parallel channels. One of the rest parallel channels can be used as signal link out to another apparatus. (A male to male XLR cable will be required for the linking out.)

Product Briefing

UPDM (Unipolar Pulse Density Modulation) amplifier is the latest generation power amplifier with an ultra-low power consumption. Durable 1 RU chassis rack mountable. Inteligent Cooling System.

Product Highlights

• 90V-264V AC global power supply
• Redundancy PSU system
• Ground and signal source noise reduction
• Direct energy amplifyinng
• Constant zero distortion power control
• Dual reactor phase shift control
• Dynamic energy recycling
• ISoft protection of overheat and clip

Specifications

• 8 Ohm Stereo Powe 650W* 4
• 4 Ohm Stereo Power 1200W * 4
• Total Harmonic Distortion <0.03%
• Freq. Response 20 Hz-20 kHz
• S/N Ratio 108dB (A-weighting)
• Damping Factor >1000
• Controlled Slew Ratio >100V/us
• DC Residual 5mV
• Operation Range (AC) 90V-250V (10%, 50/60Hz)
• Operation Range (DC) 120V- 240V
• Power Factor 0.85@>500W
• Power Switched PSU with PFC

Protection Functions

Overload Protection
This amplifier has output curent protection. Output curent will be limited when exceeds the allowed maximum value. When a channel of the amplifier output curent exceeds allowed maximum value (for example short circuit), the amplifier will be disabled (muted) for 1000ms. The amplifier will restart after the short circit comes back to normal.

Input Voltage Protection
When the input voltage is higher than the upper limit or lower than the lowest limit, PSU wil enter protect mode and cut off the power Supply,

New Generation Redundancy Power Supply System
This amplifier uses 2 identical PSU in one chassis. Controlled by specifical power management chips for load balance and redun- dancy. Backup PSU will work alone when main PSU fails. So dual PSU will supply more power and stability.

Temperature Protection
The amplifier comes with complete temperature detection, and monitors both PSU and amplifier simultaneously. Output power will belimited when the temperature of the heatsink higher than the maximum limit and power output will be cut off. The amplifier will restart when temperature retum to normal.

Typical Test Curve

Audio Precision

Physical Data

• Dimension: 19″ 6.5″ 1.8″ (1U Space)
• New Weight: 8 Lbs

Sound Town Inc. accepts no liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph, or statement contained herein. Technical specifications, appearances and other information are subject to change without notice. For the applicable warranty terms and conditions. including additional information regarding Sound Town’ s limited warranty, please see details online at: https://www.soundtown.com/pages/return-warranty

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