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Summary of Contents for TL Audio VP-3051
- Page 1 T L Audio CRIMSON SERIES User Manual VP-3051 VOICE PROCESSOR Tony Larking Professional Sales Limited, Letchworth, England. Tel: 01462 490600. International +44 1462 490600. Fax: 01462 490700. International +44 1462 490700.
- Page 2 Crimson series units are straight-forward to operate, and offer excellent value for money. The VP-3051 is a single channel voice processor, combining a high quality microphone pre-amplifier, four band equaliser and a compressor. All parameters of the compressor are variable, and a link facility enables two units to be operated in stereo mode.
- Page 3 PRECAUTIONS The T L Audio VP-3051 Voice Processor requires very little installation, but like all electrical equipment, care must be taken to ensure reliable, safe operation. The following points should always be observed: - All mains wiring should be installed and checked by a qualified...
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Page 4: Installation
INSTALLATION AC Mains Supply. The unit is fitted with an internationally approved 3 pin IEC connector. A mating socket with power cord is provided with the unit, wired as follows: Brown: Live. Blue: Neutral. Green/Yellow: Earth (Ground). All mains wiring should be performed by a qualified electrician with all power switched off, and the earth connection must be used. - Page 5 Audio Inputs. Microphone Input. The microphone input is via 3 pin female XLR connector, suitable for balanced or unbalanced microphones. The mating connector should be appropriately wired as follows for balanced or unbalanced operation: Balanced inputs: - Pin 1 = Ground (screen). - Pin 2 = Signal Phase (also known as “+”...
- Page 6 When using unbalanced signals, the signal ground may be obtained by linking pins 1 and 3 in the mating XLR connector. If this connection is not made, a loss in level may result. Unbalanced Line Inputs. An unbalanced line level input at a nominal level of -10dBu is also provided, on a 0.25”...
- Page 7 - Pin 1 = Ground (screen), - Pin 2 = Signal Phase (“+” or “hot”), - Pin 3 = Signal Non-Phase (“-” or “cold”). Unbalanced Output. An unbalanced line output is provided for each channel, on a 0.25” mono jack socket. - Tip = Signal Phase (“+”...
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Page 8: Operation
OPERATION. Front Panel. The front panel controls are identified in fig.2. Pre-Amplifier section. Phantom Power. +48V Phantom power may be applied to the microphone input socket by depressing the “+48V” switch on the front panel. Phantom power should only be used with suitable microphones (i.e. - Page 9 Aux Input. The front panel auxiliary input sockets may be switched between high level signals (“LO GAIN”, suitable for active guitars and keyboards) and low level signals (“HI GAIN”, suitable for microphones, pick ups or passive guitars), and are also controlled by the input gain control.
- Page 10 A common use of sidechain equalisation is “de-essing” to reduce sibilance on vocals. Suitable equalisers which can be inserted into the sidechain are the TL Audio Crimson Series 3011 or 3012 equalisers, which match the 3051 in audio levels and styling.
- Page 11 Bypass. The Compressor In switch allows the processing to be bypassed for comparison of the compressed signal (with any gain make up that has been applied), with the original signal. Stereo Operation. Two 3051 voice processors may be configured for stereo operation of the compressor section by inserting a Link cable between the two units.
- Page 12 LM Band. The LM (Low-Mid Frequency) band has a peaking characteristic - i.e. it boosts or cuts a section of the audio spectrum around its selected centre frequency only. A sweep control varies the centre frequency from 50Hz to 2KHz. The mid bands possess a moderate Q of approximatley 1, for a response which results in effective equalisation without harshness, and also provide a good degree of overlap between the bands.
- Page 13 Master Section. Master Level. The master level control is an output fader, which enables the voice processor output to be matched to the following equipment. The control is calibrated for 0dB at its centre, with a further 18dB of gain available by turning the knob fully clockwise. The additional gain may be useful if the output of the voice processor is connected directly to a digital recorder which requires a high level of modulation.
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Page 14: Specifications
SPECIFICATIONS Microphone Input: Electronically balanced. Input impedance greater than 2Kohm. Gain range +10dB to +60dB. Noise -127dBu (EIN with 150 ohm source, 22Hz - 22KHz and maximum gain). 3 pin female XLR connector. Phantom Power: +48V at 10mA maximum per microphone. High Pass Filter: -3dB at 90Hz, 12dB per octave. - Page 15 Compressor: Threshold -20dBu to +20dBu, Attack 0.5msec or 20msec, Release 40msec or 2 seconds, Ratio 1:1.5 to 1:30, Gain Make-Up 0 to +20dB. Equaliser: LF Band: +/-15dB at 80Hz or 120Hz. Shelving response. LM Band: +/-15dB at 50Hz to 2KHz. Peaking response, Q = 1.
- Page 16 Frequency Response: 10Hz to 40KHz, +0, -1dB. Dynamic Range: 108dB (Line input @ 0dB gain). Sidechain Insertion Points: Unbalanced, switched 3 pin jack socket, tip = send, ring = return. Nominal level -2dBu. Output impedance 47 ohms. Return input impedance 10Kohms. Power Requirements: Rear panel selectable for 220-240V 50Hz or 110-120V 60Hz operation.
- Page 17 SERVICE Should the processor require service, it must be taken or posted to an authorised dealer. Please retain the original packing for possible future use, and ensure the unit is suitably protected during transit. The manufacturer cannot accept responsibility for damage caused during transportation.
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