CSP-428 commercial sound processor

   CSP-428 จาก Bose Professional ช่วยให้การติดตั้งระบบเสียงที่ต้องการ การขยายเสียงดนตรีและไมโครโฟน เป็นเรื่องที่ง่าย รวดเร็ว และแม่นยำ ด้วยการควบคุมที่ชาญฉลาดและออกแบบมาเพื่อการใช้งานในเชิงพาณิชย์โดยเฉพาะ  เหมาะสำหรับร้านอาหาร ร้านค้า หรือพื้นที่ธุรกิจที่ต้องการระบบเสียงคุณภาพสูง พร้อมฟีเจอร์ที่ช่วยให้ผู้ติดตั้ง ตั้งค่าระบบได้สะดวก โดยไม่ต้องมีความเชี่ยวชาญด้าน DSP ลึกซึ้ง

   AutoVolume ปรับระดับเสียงโดยอัตโนมัติแบบเรียลไทม์ เพื่อให้เหมาะสมกับระดับเสียงรบกวนในสภาพแวดล้อมที่เปลี่ยนแปลงอยู่ตลอดเวลา  ในขณะที่ SmartBass ช่วยควบคุมเสียงเบสให้มีความสมดุล เสริมบรรยากาศในทุกพื้นที่ได้อย่างลงตัว

 

FEATURES

• Ensure optimal sound levels with AutoVolume, which adjusts in real-time to ambient noise, keeping music at the ideal level when paired with AVM-1 sense microphones (sold separately). Upgrade to the CSP-1248 processor to support up to five AVM-1 units, or choose the CSP- 428 processor for up to two units.
• Deliver the perfect bass level—noticeable yet never overpowering. SmartBass delivers balanced bass, adapting to room acoustics and ear sensitivity for rich, non-overpowering sound, even at low volumes.
• Struggle no more with uneven audio levels between different sources. Opti-Source Level Management, which adjusts the input of up to four sources for uniform volume. Opti-Voice ensures smooth transitions between music and announcements.
• Take advantage of full mixing functionality, allowing input sources to be mixed and assigned to each listening area.
• Zone the sound system to tailor audio for each area, creating up to five distinct listening zones. Control each with optional wall-mounted ControlCenter controllers or the ControlSpace Remote app.
• Use the CSP Configuration Utility app to pre-configure devices, and export settings.
• Right-sized connectivity for cost-effective commercial installation — 2 x 2 balanced analog I/O, 2 pair mono-summed RCA inputs, 8 control inputs, 1 control output, mute contact, Ethernet port, and Bose Professional AmpLink connectivity.
• Bose Professional AmpLink output for simplified digital audio connection to compatible power amplifiers, reducing terminations, and related points of failure.
• Simplify wiring with a network-based architecture, using Cat-5 or Cat-6 wiring and PoE capabilities. Supports both DHCP and static IP schemes for flexibility and scalability.

 

SPECS

Technical Specification
      AMPLIFICATION

Channel Separation (Crosstalk) < -105 dB at +4 dBu, 1 kHz input signal	Dynamic Range > 115 dB, A-weighted, 20 Hz – 20 kHz, analog through
Frequency Response 20 Hz – 20 kHz (+0.3 dB/-0.5 dB)	THD+N < 0.01% at +4 dBu (A-weighted, 20 Hz – 20 kHz)

 

ACOUSTIC ECHO CANCELATION (AEC)

AEC-Enabled No

 

AUDIO INPUTS, ANALOG

Input Channels 4 (2 unbalanced, summed-mono + 2 balanced, mic/line)	Connectors (2) RCA stereo pairs, (1) 3-pin Euroblock, (1) 4-pin Euroblock
Equivalent Input Noise < -119 dBu at 64 dB gain (150 Ω input, 22 Hz – 20 kHz)	Sensitivity Options -70 dBu, -60 dBu, -50 dBu, 0 dBu, +4 dBu, -10 dBV, selectable phantom power
Input Impedance 12 kΩ at 1 kHz, with or without phantom power	Maximum Input Level +24 dBu at 0 dB gain (20 Hz – 20 kHz, THD+N < 0.3%)
Phantom Power 48 V, selectable per input, open circuit, 10 mA maximum per channel, 80 mA maximum across all channels

 

AUDIO INPUTS/OUTPUTS, DIGITAL

Channels 8 AmpLink out	Connectors (1) RJ-45 AmpLink out
Type AmpLink (output)

 

AUDIO OUTPUTS, ANALOG

Channels 2 balanced, line	Connectors (2) 3-pin Euroblock
Maximum Output Level +24 dBu (22 Hz – 20 kHz, THD+N < 0.3%)	Output Impedance 66 Ω

 

COMPLIANCE

EN 54-24 Certified No

 

CONTROL INPUTS

Inputs (Control) (8) digital, 9-pin Euroblock, 3.81 mm / (1) digital, 2-pin Euroblock, 3.81 mm (mute)

Digital Input Voltage 0 V – 3.3 V (1.6 V threshold)

 

CONTROL OUTPUTS

Outputs (Control) (1) digital, 2-pin Euroblock, 3.81 mm, detachable	Output Current 10 mA source, 100 mA sink (24 VDC maximum external supply voltage)
Output Voltage High: 8 V (open circuit), 2.5 V at 10 mA / Low: < 1 V at 100 mA, push-pull

 

ELECTRICAL

Mains Connector IEC 60320-C14 inlet	Mains Voltage 85–264 VAC, 50/60 Hz
AC Power Consumption < 30 W typical, over all mains voltages (power supply maximum < 45 W)	Power Dissipation 22 W (75 BTU/hr, 19 kcal/hr)

 

GENERAL

Computer Interface Connection RJ-45 (Ethernet, 10/100 Mbps)

 

INDICATORS AND CONTROLS

LED Status Indicators (1) power/status LED, (1) input/output signal LED, (1) Ethernet LED, (1) AmpLink LED

 

INTEGRATED DSP

A/D and D/A Converters 48 kHz / 24-bit	Audio Latency 900 μs, analog input to analog output
DSP-Enabled Yes	Maximum Calculation 3.6 GIPS / 2.7 GFLOPS
Signal Processor/CPU 32-bit fixed/floating-point DSP + Arm 456 MHz processor	Sample Rate / Bit Depth 48 kHz / 24-bit

 

PHYSICAL

Colors Black	Cooling System Active, side-venting with fan
Suspension/Mounting Standard rack ears	Operating Temperature Range 0 °C to 40 °C (32 °F to 104 °F)
Product Dimensions (H×W×D) 1.7 in × 19.0 in × 8.5 in (44 mm × 483 mm × 215 mm)	Rack Spaces 1RU
Storage Temperature -40 °C to 70 °C (-40 °F to 158 °F)