AES67 Subwoofer with 2.0/0.1 Bass Management

KH 750 AES67

DSP-controlled subwoofer with physically redundant AES67 connectivity in a compact closed cabinet

Physically redundant AES67 audio network interface
Deep bass in a small space
The perfect complement to KH 80 DSP, KH 120 and KH 310
Optional tool to align and operate a complete Neumann stereo system

KH 750 AES67

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TITRE

DONNÉES ET DIAGRAMMES

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)