NEUMANN KH 750 DSP D G 10" Subwoofer

10" Subwoofer

The NEUMANN KH 750 DSP D G is a 10" subwoofer with a unique and flexible Bass Manager (2.0/0.1), analog and digital inputs, four routing modes and adaptable acoustic controls to be used in many different configurations.
The optional Neumann.Control app for iPad® allows access to many additional functions. This includes the ability to align Neumann monitors, which are connected to the subwoofer, to the room using "Guided Alignment" by controlling the entire stereo system.
The newly developed 10" "long-throw" driver has a powerful linear magnetic system working with ELFF™ (Extremely Linear Force Factor™) technology. Since subwoofers are usually placed on the floor, a robust grille protects the driver from accidental damage. The ultra-compact cabinet has a sealed design which delivers the fastest possible transient response.
The two analog XLR inputs are balanced, as are the two analog XLR outputs. The 192 kHz / 24-bit digital input can accept AES3 and S/P-DIF signals. There is a bypassable standby function and the shutdown time can be adjusted in the Neumann.Control app for iPad®.
The NEUMANN KH 750 DSP D G can be used in music, broadcast and post-production studios for monitoring, mixing and mastering.
By combining the NEUMANN KH 750 DSP D G with the freely available iPad® app (version 3.0 or later), the subwoofer becomes the intelligent control center of any Neumann stereo setup. The iPad® connects to the subwoofer via a standard IP network with an Ethernet cable between the router and the subwoofer. The stereo pair receives the analog audio signal directly from the subwoofer.

The system offers the following functions during setup/adjustment:

• Guided Alignment: A patented process where simple questions are asked about the room and speaker/subwoofer placement, the app adjusts the response of each speaker/subwoofer accordingly.
• Manual Alignment: Experienced users have complete freedom to adjust an 8-band fully parametric equalizer, levels and delay in each speaker/subwoofer as they wish. Manual Alignment can also be used to fine-tune guided alignments in more detail.
• Individual X-Over optimization between the subwoofer and the connected Neumann monitors, depending on the monitor model used.
• DSP-based phase linearization of even analog Neumann studio monitors connected for an even more transparent sound image.
• Use of the subwoofer's digital inputs (S/P-DIF and AES3) for the entire system
• Lip sync delay for the complete setup
• After setup, the iPad® can be removed if necessary; settings are permanently stored in the subwoofer.

During operation, the iPad® offers:

• Switching between different configurations and alignments
• Volume control, saving and recalling volume presets
• Dim, Solo, Mute, Mute all
• The app also allows setting the logo brightness and the standby level/time of the KH 80 DSP.

Specifications

• THD+N: analog, digital <-100 dB; <-90 dB
• Free field frequency response: ± 6 dB 16… 800 Hz
• 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
• Sinusoidal output with THD <0.5% at 1m in half-space: 95 dB SPL (> 70 Hz)
• Bass capability - max. SPL at half-space at 3% THD at 1m (average between 50 Hz and 100 Hz): 105.0 dB SPL
• Analog inputs 2 x XLR: electronically balanced analog
• Analog input impedance: >13k Ohm
• Max. input level: <+24 dBu
• Common-mode rejection ratio (CMRR): >56 dB at 15 kHz
• Crosstalk (1 kHz), level matching: <-90 dB; ± 0.1 dB
• 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
• Analog output(s): 2 x XLR; electronically balanced analog
• Input gain control (sensitivity): +2 ... -12 dB
• Output level control (output level at 1m based on 0 dBu input level): 94; 100; 108; 114 dB SPL
• Digital inputs: BNC (75 Ω): AES3; S / P-DIF
• Digital outputs: BNC (75 Ω): AES3
• Digital converter - resolution; DAC design: 16… 24 bit; ΔΣ
• Digital converter - sample rate: 22.05; 24; 32; 44.1; 48; 64; 88.2; 96; 176.4; 192 kHz
• 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 (linear phase A-D-A); 1.2 ms (linear phase D-A)
• 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. audio-video sync frame (lip sync): 2.5 (40 ms); 3 (33 ms) frames
• Delay - maximum flight time distance: 2 x 7.16 m (23 '5 ")
• Controller design: digital; active
• Crossover frequency: 80 Hz
• Crossover slope: 24 dB/oct; 4th order
• Phase: 0; 45; 90; 135 and 0/180 degrees
• Equalization - via Neumann.Control software: 8 x full parametric IIR + global low/high shelf balance
• FIR phase correction: For connected analog speakers: Linear phase (170 Hz ... 16 kHz; +/- 45 °)
• Protection circuits: Driver (thermal 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 software: Neumann.Control via an RJ45 connector carrying standard IP data
• Display: on; green LED for normal operation
• Display: amber LED for identification
• Display: red LED for Limit/Clip/Errors/Protection/Boot Mute/Shut Down Mute
• Display: bass management on green LED
• Woofer amplifier output power (THD + N with limiter disabled: 10%): 256 W
• 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): minimum 18 W
• Power consumption (230 V / 100 V): maximum power 410 W
• Peak current (peak): 30 A at 230 V AC.
• Standby: Disabled; 90 minutes (default setting); user defined in software
• Cabinet: wood, aluminum electronic panel
• Cabinet surface finish; color (front / back) painted; metallic anthracite (RAL 7021) / black (RAL 9005)
• Operating conditions. from + 10 ° C to + 40 ° C (from + 50 ° F to + 104 ° F); <90% RH, non-condensing
• Transport/storage conditions: from -25 ° C to + 70 ° C (from -13 ° F to 158 ° F); <90% RH; non-condensing
• Woofer 265 mm (10") with black metal protective grille