Giải pháp âm thanh hiệu suất cao. Polycom SoundStructure SR12 cung cấp giải pháp âm thanh mạnh mẽ và linh hoạt, cho ứng dụng xử lý âm thanh thương mại, có khả năng liên kết với bảy thiết bị SR trong hệ thống. Hệ thống SR12 SoundStructure là một giải pháp lý tưởng cho bất kỳ địa điểm nào cần âm thanh ứng dụng như nhà thờ, sân vận động, trung tâm hội nghị, khách sạn, hộp đêm và nhà hàng.

Dimensions

• 19” x 13.5” x 1.75” in (483 x 1343 x 45 mm) (W x L x H) (one rack unit)

Weight

• 12 lbs. (5.5 kg) dry, 14 lbs. (6.4 kg) shipping

Connectors

• RS-232: DB9F

• OBAM In/Out: IEEE 1394B

• CLINK2 : RJ45

• LAN: RJ45

• Control /Status: DB25F

• Audio: Mini (3.5mm) quick connect terminal blocks

• IR Receive: Mini (3.5mm) quick connect terminal block

Power and Thermal

• Internal supply

• Input voltage of 90-250 VAC; 50-60 Hz; line power requirements (including 0.6 PF): 105VA (SR12)

• Thermal dissipation (Btu/hr): 215 Btu/hr

• 0 to 40°C operating temperature

Inputs

• Phantom power: 48 V DC through 6.8kOhm series resistor per leg, 7.5mA per channel, software selectable

• Analog input Gain: -20 to 64 dB on all inputs in 0.5 dB teps, software adjustable

• Maximum input amplitude: +20.4 dBu, 1% THD + N

• Nominal level: 0 dBu (0.775V rms)

• Equivalent input noise: <-122 dBu, 20 - 20,000 Hz, Rs=150 Ohms (1%)

• Input Impedance: 10 kOhms

• Input EMI Filter: Pi filter on all audio inputs

Outputs

• Output Gain: -100 to 20 dBu in 1 dB steps, software adjustable

• Maximum output amplitude: +23 dBu, 1% THD + N

• Nominal output level: 0 dBu (0.775 V rms)

• Output impedance: 50 Ohm, each leg to ground, designed to drive loads > 600 Ohms

• Output EMI Filter: Pi filter on all audio outputs

System¹

• Frequency response: 20-22,000 Hz, + 0.1 /- 0.3 dB

• Idle channel noise: <-109 dB FS no weighting, 20 - 20,000 Hz, -60dB FS, 0.997 kHz input signal, 0 dB gain

• Dynamic range: >109 dB FS no weighting, 20 - 20,000 Hz, -60 dB FS, 0.997 kHz input signal, 0 dB gain

• Linearity: 0 dB FS to -122 dB FS +/- 1 dB

• THD+N: < 0.005%, -20 dB FS input signal

• Common Mode Rejection Ratio: <-61 dB, 20 - 20,000 Hz, no weighting

• Cross talk: <-110 dB, 20-20,000 Hz, 1kHz, channel-to-channel

• Latency: Mic/Line inputs to outputs: 5msec, 20 msec with NC processing enabled

• Noise cancellation: 0-20 dB, software selectable

• Control Inputs: Contact closure

• Status Outputs: Open collector 60V and 500mA maximum per output

• All signal ground pins connected to chassis ground through low impedance planes

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