Neumann MA 1

Reliable monitoring in every roomMgr Neumann 1:

• Calibration algorithms developed jointly with Fraunhofer IIS.
• For stereo systems with the KH 80 DSP and all Neumann analogue (non-DSP based) monitors in combination with the KH 750 DSP subwoofer
  
• Individually calibrated measurement microphone
  
• Room-adapted target curve
  
• Phase and amplitude optimisation for Neumann analogue monitors
  
• For Mac and PC
  

Hardware requirements

• 1 pair of KH DSP speakers or 1 KH 750 DSP subwoofer in combination with a pair of analogue (non-DSP based) KH speakers
  
• PC (Windows 10 64 Bit and macOS 10.13, 10.14 or 10.15)
• Audio interface with balanced analogue input with 48V phantom power supply and 2 balanced analogue outputs respectively, AES/EBU or S/PDIF digital output (KH 750 DSP only)
• Mains switch
• Required impedance converter 110/75Ohmif

Software requirements

• Operating system: Windows 10 64 Bit or macOS 10.13 upwards
• Neumann Automatic Monitor Alignment Software (download)
• ASIO driver (for Windows)

A DSP-based sound solution for studios and HifiAutomatic Monitor Alignment from Neumann is a dedicated application for KH 80 DSP stereo kits with or without the KH 750 DSP subwoofer respectively two non-DSP-based KH-Line monitors, which are driven by the analogue outputs of the KH 750 DSP. The KH 750 DSP subwoofer can also be used to automatically adjust the analogue studio monitors of the KH series.

A huge advantage over previous calibration solutions lies in the new calibration algorithms, which were developed in conjunction with the Fraunhofer Institute for Integrated Circuits (IIS) specifically for Neumann studio monitors. Neither a plug-in nor a special audio driver is required: the alignment data is stored and processed in the DSP monitors. This optimises not only the amplitude frequency response, but also the Phase.
Due to its independence from computers after successful calibration, such a system is interesting not only for professional sound studios, but also for demanding hifi enthusiasts. In terms of price, it is also extremely interesting compared to other monitor and hifi systems at this quality level.The following speakers and subwoofers are network-compatible and can be controlled directly via software:

• KH 80 DSP
• KH 750 DSP

The following speakers are not network-compatible and must be connected via a network-compatible subwoofer to be included in the system configuration:

• KH 120 A
• KH 120 D
• KH 310 A
• KH 310 D
• KH 420/KH 420 + DIM 1

This is where digital technology works bestFor

proper operation of the MA-1, in addition to a Neumann subwoofer with DSP processor or a pair of speakers for each DSP device,

a

LAN cable

is

needed for control, possibly 2 XLR cables for connecting the speakers and the network switch , and another LAN cable for the computer . The MA-1 measurement microphone operates on a microphone input with 48V phantom power to the audio interface. If the system is to be fed via the digital input of the subwoofer/speaker,

a

digital audio output on the interface is also required.

In

total, there are several possibilities for connection from the interface to the box(

es):

• AES/EBU: the digital output in XLR format requires a 110Ohm line, but the unbalanced AES3 input with BNC socket in the box requires a 75Ohm source impedance signal. Strictly speaking, an impedance converter must be connected between the two.* This method achieves the best results. However, experience shows that an adapter from XLR to BNC is sufficient.
• S/PDIF: The specification of the S/PDIF standard is contained in the AES3 standard. So the S/PDIF output can be connected to the BNC input using a simple plug-in adapter or adapter cable and will be recognised by the DSP without any problems.
  
• Analogue: Of course, it is equally possible to drive the DSP via an analogue XLR input and at the same time enjoy the benefits of loudspeaker equalisation with the MA-1. In this case, however, an additional conversion step (analogue input to DSP) must be accepted.

Detailed documentation and the required free Neumann Automatic Monitor Alignment software are available in the Neumann download section.

Please remember to disable the Direct Monitoring function on the interface during the calibration process - otherwise there is a risk of damaging the loudspeakers due to feedback loops!

To do

this, turn the source selector from Input to DAW, if necessary.

This task can also be performed by a suitable resistor network (T-element).