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Description
Neumann's Automatic Monitor Alignment MA 1 ensures the best possible sound quality in any room - from home studios to professional control rooms. Using the individually calibrated measurement microphone your acoustic environment is analyzed in a guided process. Advanced calibration algorithms, jointly developed with the world's leading institute in audio processing, Fraunhofer IIS, guarantee an optimally adapted amplitude and phase correction for exact and reliable monitoring.
Features:
RELIABLE MONITORING ANYWHERE
Neumann's Automatic Alignment is a dedicated tool for stereo sets of KH 80 DSP monitors with or without the KH 750 DSP as well as two non DSP-based KH-Line monitors connected to the analog outputs of a KH 750 DSP subwoofer. Unlike conventional correction software it is an integrated solution with novel algorithms, jointly developed with the Fraunhofer Institute for Integrated Circuits (IIS) specifically for Neumann studio monitors. No plug-in or special audio driver is required: Alignment data is stored and processed within the DSP-powered monitors themselves. As a unique benefit, the software not only optimizes the amplitude response but also optimizes the phase. This provides highest accuracy in terms of tonality and impulse reproduction.
HOW IT WORKS
In a first step, acoustic data of the listening environment is gathered in a guided process. No special acoustic knowledge is required. Simply connect your Neumann monitors to the outputs of your audio interface or monitor controller. Additionally, your DSP-based KH-line monitors must also be connected to your computer's ethernet port. For multiple connections, a standard ethernet switch will do.
Now plug the measurement microphone into your microphone input. This microphone was specifically developed for this software and is individually calibrated by it. The software will guide you through the measurement process.
From the measured data, the software ascertains the room's acoustic properties. The individual correction parameters are generated according to a room-specific target curve calculated by the software. Neumann's decades of experience in calibrating monitoring systems in studio control rooms has been incorporated into this process. Of course, you can modify the target curve to your needs.
Additionally, the alignment process ensures an optimal summation in the low frequencies when a subwoofer is used.
All resulting correction parameters are stored and processed in the DSP-powered monitors. So there is nothing to worry about anymore, no plug-ins, no driver issues. And no additional cables, either: Once the alignment process is completed, the ethernet connections are not required anymore.
Using the KH 750 DSP subwoofer, stereo sets of analog KH-Line monitors, too, can be used with the Automatic Monitor Alignment Software. The KH 750 DSP has enough processing power to align the entire system including the two analog loudspeakers connected to its outputs. Additionally, KH 120, KH 310, and KH 420 loudspeakers profit from phase linearization of their built-in crossover filters! The result is increased clarity, a dry bass, and a time-correct, more accurate depiction of reverbs and acoustic spaces.
Hardware Requirements:
Software Requirements:
The following loudspeakers and subwoofers are network-enabled and can be controlled directly by the software:
The following loudspeakers are not network-enabled and need to be connected via a network-
enabled subwoofer in order to be included in the system setup.
The compact KH 750 DSP is the ideal choice for smaller rooms and smaller studio monitors. It has a unique and flexible Bass Manager (2.0/0.1), analog and digital inputs, four routing modes and adaptable acoustical controls to be used in many different configurations.
The optional Neumann.Control iPad® app gives access to many additional functions. This includes the possibility of aligning Neumann monitors, that are connected to the subwoofer, to the room using the patented "Guided Alignment" and controlling the entire stereo system. This also includes analog* monitors. Detailed information can be found below.
MORE ABOUT THE KH 750 DSP
The newly designed 10" long-throw driver has a strong linear working magnet system with ELFF™ technology (Extremely Linear Force Factor™). As subwoofers are usually placed on the floor, a robust grille protects the driver from accidental damage. The ultra-compact cabinet is a closed design which brings 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 switch-off time can be adjusted in the Neumann.Control iPad® app.
The KH 750 DSP can be used in music, broadcast, and post production studios for tracking, mixing, and mastering.
THE KH 750 DSP AND THE NEUMANN.CONTROL IPAD® APP
By combining the KH 750 DSP with the freely available iPad® app (version 3.0 or newer), the subwoofer becomes the intelligent control center of every Neumann stereo setup. In addition to the KH 80 DSP, the KH 120, KH 310 and KH 420** analog monitors now also benefit from the DSP power of the KH 750 DSP.
The iPad® connects to the subwoofer via a standard IP network with an Ethernet cable between the router and subwoofer. The stereo pair receives the analog audio signal directly from the subwoofer.
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Product Specs
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 |
Reproduction accuracy between 50 Hz and 100 Hz: 100%, 80%, 50% of subwoofers produced | n/a |
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 |
Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair full range) | n/a |
Max. long term SPL with pink noise at 2.3 m, in typical listening conditions (single / pair with subwoofer) | n/a |
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 |
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; analog electronically balanced |
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 |
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 |
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) |
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") |
Controller design | Digital; active |
Crossover frequency | 80 Hz fixed or 60 ... 100 Hz via Neumann.Control |
Crossover slope | 24 dB/oct; 4th order |
Phase | 0; 45; 90; 135 und 0/180 deg |
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 |
Display: Bass Management on | Green LED |
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) |
Acoustical operating principle | Pressure transducer |
Directional Pattern | Omnidirectional |
Frequency Range | 20 Hz - 20 kHz |
Sensitivity at 1 kHz into 1 kohm | 30 mV/Pa -30 dBV +/- 3 dB uncalibrated | 30 mV/Pa -30 dBV +/- 0,5 dB Calibrated (via software) |
Rated Impedance | 50 Ohms |
Rated load impedance | 1000 Ohms |
Equivalent noise level, CCIR 1 | 39 dB |
Equivalent noise level, A-weighted 2 | 27 dB-A |
Maximum SPL for THD 0.5% 3 | 132 dB |
Signal-to-noise ratio, CCIR (re. 94 dB SPL) 4 | 55 dB |
Signal-to-noise ratio, A-weighted (re. 94 dB SPL) 5 | 67 dB |
Maximum output voltage | 10 dBu |
Supply voltage (P48, IEC 61938) | 48 V ± 4 V |
Current consumption (P48, IEC 61938) | 3 mA |
Matching connector | XLR3F |
Weight | 37 g |
Diameter | 23 mm |
Length | 117 mm |
Operating conditions | 0 °C - +70 °C (32 °F - 158 °F); max. 90 % at +20 °C |
Transport/storage conditions | −20 °C - +70 °C (−4 °F - 158 °F); max. 90 % at +20 °C |
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