Neumann KH 750 AES67 - Subwoofer monitor
THE INTERFACE BETWEEN AES67 STUDIO INFRASTRUCTURE AND ALL KH LINE MONITORS
The compact KH 750 AES67, as a product variant of the KH 750 DSP, is the ideal subwoofer for routing audio over IP in an existing AES67 studio infrastructure all the way to the loudspeakers in a redundant and lossless manner. It thus serves as the link between the studio’s digital ST2110/AES67 data stream and all KH line monitors.
By adding more KH 750 AES67 subwoofers, stereo systems of any size can be realized. The KH 750 AES67 adds AES67 connectivity and retains all other features of the KH 750 DSP such as the unique and flexible Bass Manager as well as analog and digital inputs, four routing modes, and adaptable acoustical controls to be used in many different configurations and setups.
The KH 750 AES67 model variant offers newly integrated redundant AES67 audio network ports that are fully compliant with broadcast standards such as ST 2110 and ST 2022-7 redundancy. At the same time, the KH 750 AES67 is compatible with DANTE®-generated AES67 network streams.
The KH 750 AES67 thus enables all pairs of KH line monitors to be integrated into a redundant AES67 IP network.
Free field frequency response ±6 dB: 16 … 800 Hz
THD+N: analog, digital: < -100 dB; < -90 dB
Free field frequency response ±3 dB: 18 … 750 Hz
Self-generated noise at 10 cm (with input gain set to 100 dB SPL for 0 dBu): <20 dB(A) SPL
Sine wave output with a THD < 0.5 % at 1 m in half space: 95 dB SPL (>70 Hz)
Bass capability: Max. SPL in half space at 3% THD at 1m (averaged between 50 Hz and 100 Hz): 105.0 dB SPL
Crosstalk (1 kHz), level matching: < -90 dB; ±0.1 dB
Analog output(s): 2 x XLR; analog electronically balanced
Dynamic range A-D-A: >120 dB(A)
Dynamic range D-A: >123 dB(A)
Digital sensitivity: -18 dBFS = 100 dB SPL at 1 m
Latency: 1.5 ms (A-D-A linear phase); 1.2 ms (D-A linear phase)
Phase: 0; 45; 90; 135 und 0/180 deg
Display: Bass Management on: Green LED
Analog input(s): 2 x XLR: analog electronically balanced
Analog input impedance: >13k Ohms
Max. input level: < +24 dBu
Common mode rejection ratio (CMRR): > 56 dB @ 15 kHz
Volume control: via Neumann.Control software
Volume control range; resolution: 0 … -∞ dB; 0.1 dB
Analog dynamic range; THD+N: 119 dB(A); <0.003% (-90 dB)
Signal routing modes: Right; External Bass Management; 2 x LFE
Digital input(s): BNC (75 Ω): AES3; S/P-DIF
Digital output(s): BNC (75 Ω): AES3
Digital converter: resolution; design: 16 … 24-bit DAC; Δ∑
Digital converter: sampling rate: 22.05; 24; 32; 44.1; 48; 64; 88.2; 96; 176.4; 192 kHz
Delay: User adjustable delay range: 0 ... 100 ms and 2 x 0 ... 20.8 ms
Delay: Resolution: time; distance: 0.1 ms; 3.44 cm (1 3/8”)
Delay: Max. frames Audio-video synchronisation (lip sync): 2.5 (40 ms) frames; 3 (33 ms) frames
Delay: Time-of-flight maximum distance: 2 x 7.16 m (23' 5")
Input gain control (sensitivity): +2 ... -12 dB
Output level control (output level in 1 m based on 0 dBu input level): 94; 100; 108; 114 dB SPL
Controller design: Digital; active
Crossover frequency: 80 Hz
Crossover slope: 24 dB/oct; 4th order
Equalization: via Neumann.Control software: 8 x full parametric IIR + low / high shelf global balance
FIR phase correction: For connected analog loudspeakers: Linear phase (170 Hz ... 16 kHz; +/- 45°)
Protection circuitry: Driver (thermo limiter); Electronics (temperature limiter); Amplifier (peak limiter, temperature limiter, temperature protection and overcurrent protection); Power supply (temperature limiter and overcurrent protection)
Infrasonic filter: frequency; slope: 17.5 Hz; 12 dB/oct.
Remote control: Neumann.Control software via an RJ45 connector carrying standard IP data
Display: On; Normal Operation: Green LED
Display: Identification: Amber LED
Display: Limit / Clip / Errors / Protection /Boot Mute / Shut Down Mute: Red LED
AES67 Audio-over-IP Interface: Fully redundant AES67 ST2110 compliant audio network interface; 2 Fast Ethernet 100Base-TX (IEEE 802.3) RJ-45 connectors; Physical redundant network (ST 2022-7)
AES67 Audio-over-IP input word length: 24 bits
AES67 Audio-over-IP input sampling rate: 44.1 / 48 / 88.2 / 96 kHz
AES67 Audio-over-IP input connection management: RAVENNA, NMOS IS-04 (Discovery & Registration) and NMOS IS-05 (Connection Management)
Output power woofer amplifier (THD+N with limiter deactivated: 10%): 256 W
Mains Power Supply: input voltage; frequency: 100-240V; 50/60 Hz
Power consumption (230 V / 100 V): Standby: <300 mW
Power consumption (230 V / 100 V): Idle: 18 W
Power consumption (230 V / 100 V): Full output: 410 W
In-rush current (Peak): 30 A @230 VAC
Standby: Disabled; 90 mins (default); user defined in software
Cabinet material: Wood cabinet, aluminum electronics panel
Cabinet surface finish; color (front / back): Painted; metallic anthracite (RAL 7021) / black (RAL 9005)
Operating conditions: +10° C to +40° C (+50° F to +104° F); <90% RH, non-condensing
Transport/storage conditions: -25° C to +70° C (-13° F to 158° F); <90% RH; non-condensing
Woofer: 265 mm (10") with protecting black metal grille
Product dimensions (height x width x depth): 383 x 330 x 383 mm (15 1/8" x 13" x 15 1/8")
External net volume: 48.4 liters
Product weight: 19.5 kg (43 lbs)
