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TL Audio IVORY 2 5052, Руководство пользователя

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user manual

TLA

udio

®

Ivory 2 Series

5052

STEREO VALVE PROCESSOR

TL Audio Ltd, Letchworth, Herts, SG6 1AN, UK
email: [email protected]   web: http://www.tlaudio.co.uk

Содержание IVORY 2 5052

Страница 1: ...user manual TLAudio Ivory 2 Series 5052 STEREO VALVE PROCESSOR TL Audio Ltd Letchworth Herts SG6 1AN UK email info tlaudio co uk web http www tlaudio co uk...

Страница 2: ...8 Drive and Peak LEDs 4 9 Output Gain 4 10 Bypass 4 11 What Is Compression 4 12 Why Valve Compression 4 13 Overview of Compressor Operation 4 14 Threshold 4 15 Ratio 4 16 Attack and Release 4 17 Knee...

Страница 3: ...ut with selectable 44 1 or 48 kHz sample rates and the option to clock the converter to an external word clock source The block diagram of the 5052 is shown in Figure 1 A solid state electronically ba...

Страница 4: ...ndication of when the limiter threshold is exceeded Mic and line inputs are provided on electronically balanced XLR connectors and the line input is duplicated on an unbalanced mono 0 25 jack connecto...

Страница 5: ...l mains wiring should be installed and checked by a qualified electrician Ensure the correct operating voltage is indicated on the rear panel before connecting to the mains supply Never operate the un...

Страница 6: ...Q ON PK SHLV LIM 10dB EQ LIMITER POWER ON METERS STEREO MODE CH1 MSTR EQUALISER 1 16 20 dB 60 20 38 0 INPUT GAIN MIC LINE 16 20 dB 60 20 38 0 OUTPUT GAIN oo dB 15 0 0 dB 20 5 12 HF 0 15 dB 15 3K Hz 20...

Страница 7: ...V 60Hz or 220 240V 50Hz operation and should only be changed by an authorised service centre The mains fuse required is 20mm anti surge 1AT rated at 250V If it is ever necessary to replace the fuse on...

Страница 8: ...and unbalanced line level inputs The mating connector should be appropriately wired as follows Balanced inputs Screen Ground Tip Signal Phase or hot Ring Signal Non Phase or cold Unbalanced inputs Sc...

Страница 9: ...microphone or low level sources to prevent hum or noise pickup 3 6 Insert Points The insert points are interfaced via a pair of 3 pin 0 25 jack sockets on the rear of the unit These points not to be c...

Страница 10: ...ixing desk the Tip and Ring should be wired together to preserve the signal path through the insertion point If connecting the 5052 sidechain insert to a patchbay it is important to ensure that the se...

Страница 11: ...is able to match the operating level of such recorders using the 18dBu setting If the operating level is not known the switch should be set to the position which results in the best signal to noise r...

Страница 12: ...output level can be turned down to preserve the same level at the output so a choice of sounds is available For a more pronounced valve sound turn up the input gain and reduce the output gain and vic...

Страница 13: ...the mic preamp stage the 30dB pad can be used to reduce the input gain to a more manageable level The 30dB pad only applies to the microphone input 4 6 90Hz Filter The high pass filter switch restrict...

Страница 14: ...he entire signal chain is monitored and the LED illuminates when an internal level of around 19dB is reached Normal operation would be to set the input gain so that the drive LED is regularly illumina...

Страница 15: ...overloading distortion problems as well as raising the level of the quieter parts of the audio signal Before the introduction of compressors the only way this could be achieved was by gain riding whe...

Страница 16: ...espread use of digital products The reason valve equipment sounds special is due to two things harmonic distortion and natural compression When the signal through a valve is increased it tends to gene...

Страница 17: ...ction 4 15 Ratio Once the input signal has crossed the threshold the degree of gain reduction is determined by the Ratio control The Ratio control is calibrated in decibels and is simply the change in...

Страница 18: ...which delays the onset of release for approximately 10mS after the input signal falls below the threshold If distortion is still experienced a slower release time should be used 4 17 Knee The Knee sw...

Страница 19: ...section will effectively lower the compression threshold at that frequency To de ess for instance activate the EQ S C switch and try boosting the sibilant frequency normally 3 5kHz using a narrow band...

Страница 20: ...e meter reading by 10dB below the actual audio signal level and this applies to both input and output level metering This is useful when the 5052 is being fed with large input levels or is producing l...

Страница 21: ...EQ sections particularly when pushed hard 4 24 Frequency Control This control sets the Frequency on each band that is to be cut or boosted The frequencies are continuously variable over the following...

Страница 22: ...g or shelving equalisation by means of a dedicated switch In peaking mode the EQ band will cut or boost a fixed band of frequencies either side of the selected centre frequency a little like a paramet...

Страница 23: ...nates when the threshold has been crossed and the limiter is actively providing some gain reduction The limiter is positioned post the output level control so the user can be confident that any increa...

Страница 24: ...switch Input gain control 30dB pad Phase reverse 90Hz filter System bypass switch Output gain control Note that by providing separate linking switches for compressor EQ and limiter modes it is possib...

Страница 25: ...the line not mic input of your console recorder or sound card A common mistake is to plug the XLR line output into the XLR mic input of a console This will cause the console mic inputs to overload ver...

Страница 26: ...insert Having processed individual tracks while recording it is common to apply some compression to the stereo mix while mastering it to 2 track tape DAT or CDR Doing this will help fatten the sound...

Страница 27: ...s normal to keep the Drive LED glowing most of the time with the Peak LED illuminating on transient peaks only For a cleaner sound you can back off the input gain and thus reduce the drive to the val...

Страница 28: ...F and HF bands are useful for adding some low end warmth and high end air while the mid bands are more useful at removing boxiness or nasal tones from mic sources However since there is a large amount...

Страница 29: ...VU when set to I P Then switch to meter O P and check that around 0VU is being produced and adjust the 5052 output level controls if necessary To get the most benefit from the valve stages it s norma...

Страница 30: ...romised thus extending the useful life of the valve Q When replacing valves is any calibration necessary A Small gain changes may occur when replacing valves and ideally you should have a technician r...

Страница 31: ...The standard insert points on the 5052 are more like conventional mixer insert points and allow an external piece of equipment to be connected between the 5052 preamp stage and the compressor EQ and l...

Страница 32: ...a result the above effect is minimized 7 SPECIFICATIONS Line Inputs Balanced via XLR switchable 4 18dBu nominal level Unbalanced via Jack switchable 10 4dBu nominal level Gain range 20dB Maximum input...

Страница 33: ...continuously variable 10dBu to 20dBu Ratio 1 1 5 to 1 30 Attack continuously variable programme dependant typically 0 4ms to 40ms Release continuously variable programme dependant typically 40ms to 4s...

Страница 34: ...as master Metering Variable intensity Drive LED illuminating over the range 6 to 16dBu Peak LED at 19dBu monitoring the signal chain at multiple points Twin illuminated VU meters switchable to Input L...

Страница 35: ...at the Input stage Compressor and Equaliser Ceramic bases with precious metal contacts Stabilised HT and heater supplies Power Consumption 30VA Internally set for 230V or 115V AC operation Dimensions...

Страница 36: ...defective materials or workmanship will be repaired free of charge The warranty excludes damage caused by deliberate or accidental misuse tampering operation on the incorrect mains voltage or without...

Страница 37: ...FIG 1 BLOCK DIAGRAM...

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