Product | KH750AES | Detail Data

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)

Diagrams

KH 750 DSP/AES67 with KH 80 DSP, Group Delay

KH 750 DSP/AES67 with KH 80 DSP, Group Delay

KH 750 DSP/AES67 with KH 80 DSP, Frequency Response

KH 750 DSP/AES67 with KH 80 DSP, Frequency Response

KH 750 DSP/AES67 Harmonic Distortion at 95 dB SPL in 1 m (Blue: THD, Green: 2nd harmonic, Red: 3rd harmonic)

KH 750 DSP/AES67 Harmonic Distortion at 95 dB SPL in 1 m (Blue: THD, Green: 2nd harmonic, Red: 3rd harmonic)

KH 750 DSP/AES67 Maximum SPL at 1m (Red: 10% THD, Green: 3% THD, Blue: 1% THD)

KH 750 DSP/AES67 Maximum SPL at 1m (Red: 10% THD, Green: 3% THD, Blue: 1% THD)