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SPL Phonitor 2730, User Manual

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SPL Phonitor 2730 User Manual Download Page 12

12

Phonitor

Rear Panel/Connections

Wiring

Make sur

e that the v

oltage switch setting

reflects the corr

ect local po

w

er line v

oltage

.

Input & Output

Right Channel

The Phonitor can be fed fr

om any ster

eo signal path via its

rear panel XLR sockets. Headphone connection on the fr

ont panel.

Input & Output

Left Channel

Po

w

er Supply

Connection

Po

w

er

Switch

GND Lift

Switch

Summary of Contents for Phonitor 2730

Page 1: ...5 5 7 5 2 0 1 6 1 2 0 9 0 6 0 3 d B CENTER LEVEL OFF ON OFF ON METER CAL METER MODE VU PPM 6 0 20 MONO CROS SPK CENTER OFF ON OFF SOLO L R OFF L R OFF S PEAKER ANGL E CROSSFEED M I N 2 3 4 5 M A X DI...

Page 2: ...onics GmbH Type of Equipment Audio Signal Processor Product Phonitor Model 2730 Compliance Engineer Wolfgang Neumann TestBasis EN50081 1 1992 EN50082 1 1992 EN60065 1993 EN61000 3 3 1995 EN60065 2002...

Page 3: ...15 Control Elements 16 Crossfeed Speaker Angle 16 Interaural Level and Time Differences as Related to Crossfeed Setup 17 Interaural Level and Time Differences as Related to Speaker Angle Setup 18 Tabl...

Page 4: ...E YOU AWARE OF IMPORTANT OPERATIONAL ADVICE AND OR WARNINGS THAT MUST BE FOLLOWED BE ESPECIALLY ATTENTIVE TO THESE AND ALWAYS FOLLOW THE ADVICE THEY GIVE The symbol of a lamp directs your attention to...

Page 5: ...ous electrical shock Electrical Power Run this machine ONLY from sources which can provide proper power at the prescribed rating When in doubt about a source contact your dealer or a professional elec...

Page 6: ...ing been damaged This also applies to any situation in which the ma chine has not been subjected to any of these unusual circumstances but still is not functioning normally or its performance is subs...

Page 7: ...t HF interference Nonetheless you should carefully consider where you place the unit to avoid electrical disturbances It should be positioned so that you can easily reach it but there are other consid...

Page 8: ...L began planning the development of a compact professional headphone amplifier design based on its 120 volt technology The essential inspiration came from project manager Hermann Gier s desire to elim...

Page 9: ...The basis for this high end development is our proved 120 volts ref erence technology based upon our own handmade operation ampli fier It corresponds to approximately twice that of most modern analog...

Page 10: ...akers Moreover what is often called the super stereo effect with head phones usually creates a great deal of ear fatigue in the long run Over loudspeakers the sound stage is felt in front while in con...

Page 11: ...o Noise Ratio of 116dB and offer a nearly 34dB headroom that yields an unequalled 150dB dynamic range The musical result is not to be mistaken Regardless of the monitor ing means regardless of how lou...

Page 12: ...ting reflects the correct local power line voltage Input Output Right Channel The Phonitor can be fed from any stereo signal path via its rear panel XLR sockets Headphone connection on the front panel...

Page 13: ...the unit only after you have turned the Volume control fully left and wait to set your de sired volume level until the unit is powered on Neglecting this can damage either or both your ears and your h...

Page 14: ...s are required GND Lift The rear panel GND lift switch eliminates hum by separating the inter nal ground from the unit s housing ground Hum can for example re sult when this unit s housing has a commo...

Page 15: ...clicks and pops reaching the ear In addition this can avoid unpleasant surprise that follows when a headphone s lower impedance suddenly reproduces an otherwise acceptable Phonitor volume setting of a...

Page 16: ...or frequency dependent simula tion of your stereo image width by adjustments of interaural time dif ference This influences the moment in time at which a signal s wave form arrives at the ear and corr...

Page 17: ...aural level difference and on the right the interaural time difference at minimal Crossfeed value and a Speaker Angle of 30 degrees The black curves stand for the side of the direct sound wave front w...

Page 18: ...ximum Crossfeed value and a Speaker Angle of 15 degrees The black curves stand for the side of the direct sound wave front while the gray curves stand for the opposite side The larger the Speaker Angl...

Page 19: ...Angle most precisely matches the theoretically determined time differ ence values These of course are mainly a starting point to reproduce a real monitoring setup Formulae for calculations from http...

Page 20: ...to compensate for the stereo signal processing with Crossfeed and Speaker Angle This Center Level signal is produced as a mono sum of the left and right channels Changes in these values are regulated...

Page 21: ...bout 2ms and the release time down to 20dB is at a slow 1 5 seconds This calibration ensures to display even short peaks up to about 5dB since the needle does not have to travel the entire distance of...

Page 22: ...r even only 50 Ohms Such headphones effect a much louder level A 50 Ohms headphone thus yields a rela tively loud minimum volume level In such a case the useful range of an amplifier s output level co...

Page 23: ...her important monitoring func tion As with the solo function you can choose between L R and OFF Choose the middle position OFF to hear the stereo signal Switching to L reverses the left channel phase...

Page 24: ...ing or vinyl production Volume The Volume level control allows you to increase or decrease the signal level at the headphone output from between 10dB down to 80dB To this end we employ a high grade AL...

Page 25: ...not sensible to listen to classic music while planning a Phonitor setup to mix a pop production Classic music stereophony record ing involves a much more restricted stereo width than pop or rock music...

Page 26: ...inter aural level difference is only slightly altered Do not be misled by the scaled Speaker Angle degree numbers so that you think you need to follow only those exact values given for your loudspeake...

Page 27: ...these adjustment you should have achieved a very good initial headphone equivalent of your loudspeaker reproduction But as a final bit of advice we d like to emphasize that monitoring over loudspeaker...

Page 28: ...ically balanced Headphone Output 6 3 mm stereo TRS connection Pin Wiring Tip left Ring right Shaft GND Impedance 9 Power Amplifier Max Output Performance 1 7W 32 2dBm 1 kHz and 600 connection 360mW 25...

Page 29: ...l Measuring output and input 600Ohm Volume control Phonitor 0dB This measurement shows the minimum deviation of phase in the upper frequency range Phase response describes the time difference be tween...

Page 30: ...0 Ohm headphones the SPL is at ca 83dB stereo signal in 3cm distance Volumes that would result from 10dBu are already far above healthy levels THD vs Frequency Measuring output and input 600Ohm Volume...

Page 31: ...9 0 6 0 3 d B C E N T E R L E V E L OFF ON OFF ON METER CAL METER MODE VU PPM 6 0 20 MONO CROS SPK CENTER OFF ON OFF SOLO L R OFF L R OFF S P E A K E R A N G L E C R O S S F E E D MIN 2 3 4 5 M A X D...

Page 32: ...uch cases please contact your dealer for full guaran tee conditions and service Direct SPL product support requires product registration Please fill out the guarantee card enclosed in the package legi...

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