45 50 55 60 6 20 15 85 10 90 9 5 0 10 5 0 Sound Performance Lab Dual Channel Volume Control 80 Mute 75 25 70 30 5 40 5 3 Manual Model 2602 Volume 2 Model 2612 Analog Dual-Channel Volume Controller
Manual Volume 2, Model 2612 Version 1.2 – 3/2012 Designer: Wolfgang Neumann This user's guide contains a description of the product. It in no way represents a guarantee of particular characteristics or results of use. The information in this document has been carefully compiled and verified and, unless otherwise stated or agreed upon, correctly describes the product at the time of packaging with this document.
Contents Introduction ............................................................................................... 4 Installation and Security Advices .............................................................. 5 Power Supply .............................................................................................. 5 Rear Panel .................................................................................................. Power Supply, ON/Off Switching ..........................................
Introduction The Volume Controller Volume 2 serves as a system-independent analog volume regulator in all areas of audio processing and playback, including • Stereo music production • Movie and video post production, video computer games production • Demanding hi-fidelity applications Complementing the fully equipped SPL Stereo Monitoring Controller (MTC 2381), the Volume 2 focuses exclusively on the highest possible quality in active volume control.
Installation and Security Advices Important Notes Be very careful to check that the rear chassis power selection switch is set to the correct local line voltage position (either 230 or 115 volts) before using your machine! Before connecting any equipment make sure that any machine to be connected is turned off (on the Volume2 rear panel the power switch must be pushed down).
Rear Panel Power Supply, On/Off Switching Be sure before connecting the Volume 2 to power that the rear-chassis voltage supply is switched to the proper local rating (either 230 or 115 volts). Above all, before connecting any machines, always take additional care to power down all those to be used (and move the rear-chassis power supply switch of the Volume 2 to the “down“ position).
Rear Panel Unbalanced Connections (i. e. RCA, TS Jack) You can establish unbalanced connections easily and without adaptors – for example from CD-Players with RCA outputs or to (HiFi) power amplifiers with RCA inputs. It is important to pay attention to the correct polarity of the three XLR wires. Connections to RCA and TS Jack inputs or outputs are always unbalanced. Connections to TRS inputs or outputs may be balanced or unbalanced.
Operation Mute You guessed it ... this switch mutes all speaker outputs. It is particularly valuable in panic situations, for example, if the computer crashes and its converters suddenly output uncontrolled high level noise. It is also very useful in any case where one simply wants silence without changing the Volume settings—e. g. to answer the telephone. IMPORTANT: When making any cable connection changes, you should not only activate the mute switch, but follow the on/off powering procedures noted on p.
Volume 2 d B u 10 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 20 Audio Precision 50 100 200 500 Hz 2k FREQ RESP only On.
Measurements Audio Precision Volume 2 INPUT/OUTPUT PHASE vs FREQUENCY 04/27/06 09:49:58 Volume 2 +150 +100 +50 d e g +0 -50 -100 -150 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz SPL IN-OUT PHASE.at2c Audio Precision Volume 2 FFT SPECTRUM ANALYSIS +6dB 04/27/06 09:47:31 Volume2 +20 +0 -20 -40 d B V -60 -80 -100 -120 -140 2.5k 5k 7.5k 10k 12.5k 15k 17.5k 20k 22.5k Hz FFT Stereo.
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Manual Volume 2 < English 12 Volume 2
