TOA Electronics TDX2 manuale d’uso

TDX2 USER MANUAL[...]

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3 Tannoy TDX2 Quick reference To access a channel press the appropriate channel’s ‘GAIN’ button. When you press the button once you will get that channel’s gain screen. To scroll through a channels’ parameters, use the ‘BACK’ and ‘NEXT’ keys. (If you press the gain button a second time, you will get the last parameter viewed. A th[...]

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5 Contents Important Safety Information ................................................................................................. 7 1. Introduction ....................................................................................................................... 8 2. Unpacking the TDX2 ..................................................[...]

6 12.2. Grounding ............................................................................................................... 31 13. Warranty ....................................................................................................................... 32 14. Appendices ..................................................................[...]

7 An example of this equipment has been tested and found to co mply with the following European and international Standards for Electromagnetic Compatibility and Electrical Safety: Radiated Emissions (EU): EN55013 - 1 (1996) RF Immunity (EU): EN55103 - 2 (1996) RF Immunity, ESD, Burst Transient, Surge, Dips &Dwels Electr ical Safety (EU): EN600[...]

8 1. Introduction Thank you for choosing the Tannoy TDX2 loudspeaker system controller for your application. The TDX2 is an advanced digital electronic controller intended to optimise the performance of Tannoy loudspeaker systems. This manual explains how to configure the TDX2 to be tailored to your specific application. As well as technical specif[...]

9 • Six high performance limiters are provided, featuring a wide range of control over Attack, Release and Threshold parameters. The output meters shows headroom to the limit threshold. The me ter time constants track the limiter time constants to show precise power usage. • Variable High and Low pass filters for each output can be set for 12, [...]

10 4. Front Panel Functions 1. LCD Display - Shows menu options, output information and various parameters being a djusted. 2. Gain Keys - Two input and six - output ‘gain’ keys allow instant access to the gain screen for each channel. When a channel is selected the accompanying LED lights up. Pressing a second time selects the last function ed[...]

11 5. Rear Panel Functions 1. Power Switch . 2. Mains Fuse - Located in a finger - proof fuse holder adjacent to the mains inlet. Always replace this fuse with the correct type as shown on the rear panel legend. (N.B. A spare fuse is located in this holder.) 3. Mains Power - Connected via a standard IEC socket. A compatible power cord is supplied w[...]

12 6. Operating the TDX2 6.1. Preliminary Set - up The following procedure should be followed when first installing the TDX2. Connect the unit to a mains o utlet with the mains cable provided, via the IEC connector located on the back of the unit. The unit is switched on by flicking the power switch. The unit will take several seconds to load. The [...]

13 6.4. Menu S elections The following menu selections are available. To access menus, see instructions under preliminary set - up above. Xover Sub - Menu : Load a Xover: Loads a pre - defined crossover. Design a Xover: Set - up wizard for designing a crossover. Store a Xover: St ores all output settings as a defined crossover. Erase a Xover Mem: E[...]

14 7. TDX2 Configurations 7.1. Introduction To simplify set - up of the TDX2, 5 crossover modes are menu selectable. Thes e all have parametric equalisers, high and low pass filters, limiters, gain and delay. For detailed information on these modes please study the block diagrams along with the following descriptions. 2 x 3 way and 2 x 2 way crosso[...]

15 distance (System Su b - menu) and is adjustable in 2 . 6 µ S steps (1mm), or in 0.8mm (or 0.003 feet) steps. Alternatively, to convert from units of time (i.e. milliseconds) to units of distance use the following formula, or change the input method in ‘delay time/distance’ in the S ystem Sub - Menu. 1 millisecond = 343mm (1.126ft) @ 20 ° C[...]

16 7.5. Block Diagrams of X - Over modes Tannoy TDX2 2 × 2 Way + 2 × Mono Sum X - Over Tannoy T DX2 2 × 3 Way X - Over[...]

17 Tannoy TDX2 4 Way + 2 X - Over Tannoy TDX2 5 Way + 1 X - Over[...]

18 Tannoy TDX2 6 Way X - Over[...]

19 7.6. Output Limiters High performance digital limiters are provided for each output with control over attack time, release time and thresho ld level parameters (see Section 8.2, page 22). This level of control allows the user to balance the required subjective quality of the limiter against the driver protection requirements. It also means that [...]

20 8. Function Screens 8.1. Parametric Equaliser Screen All modes feature a total of 30 bands of fully flexible parametric equalisation (5 per output), with all sections selectable to Low or High frequency shelving response. Each parametric section can be positioned at a frequency from 20Hz to 20kHz and features a wide range of 'Qs’ to produ[...]

21 8.2. High and Low pass filter Screens Each output has an independent high pass filter and an independent low pass filter. Both filters have a range of selectable slopes, which are Bessel 12dB, 18dB and 24dB, Butterworth 12dB, 18dB and 24dB, and Linkwitz - Riley 24dB. High pass filters have a ra nge of <10Hz (through) to 16kHz and Low pass fil[...]

22 8 .3. Limiter Screen Each output has an independent high performance limiter. All limiters have an attack range of 0.3mS to 90mS, release times are 4, 8, 16 and 32 times the attack time and thresholds range from +22dB to – 10dB in 1dB steps. If the automati c limiter time constant option is in use, all limiter screens will say ‘automatic’ [...]

23 8.4. Delay Screen Each output has an independent delay time control. This can be adjusted in 2 . 6 µ s steps and in 1ms steps giving complete control over driver time alignment. Input delay (base delay) is adjustable in 1ms steps only. To adjust the delay settings: Select relevant channel by pressing the channel ‘GAIN’ button. Use the ‘BA[...]

24 8.6. Gain Screen Each output and input has an individual gain screen. The outputs have a range of +15dB to – 40dB, adjustable in 0 . 1dB steps and the inputs have a range of +6dB to – 40dB, again adjustable in 0 . 1dB steps. To adjust the gain: Select relevant channel by pressing the channel ‘GAIN’ button. Use the ‘BACK’ and ‘NEXT?[...]

25 9. Menu Options 9.1. X - over Sub - Menu Press 'MENU' and select X - over Sub - menu using the ‘BACK’ , ‘NEXT’ and 'ENTER' keys. Four options are available in this sub - menu which are: Load a Xover : Loads a stored crossover. This includes factory preset files. Updates can be obtained from your distributor or from th[...]

26 including all menus. Changes + view: This option locks all parameters and the viewing of them on the LCD including all menus. Changes + mutes: This option locks all parameters, including all menus, and disables all mute keys. Everything: This option locks all parameters and the viewing of them, including all menus, and disables all mute keys. To[...]

27 when downloading new presets). 9.6. AES / EBU Sub - Menu Connection of AES/EBU signals is via the existing rear panel XLR connectors. Menu Selections: With the AES/EBU option fitted, AES Receive and Diagnostic modes are provided.[...]

28 10. Equalisation Curves Figure 1 - Parametric filter gain curves. Figure 2 - Parametric filter 'Q' curves. Figure 3 - Parametric filter High and Low shelf curves.[...]

29 Figure 4 - High pass filter curves. Figure 5 - Low pass filter curves. Figure 6 - Parametric filter with high 'Q' to achieve notch response.[...]

30 11. Specifications Inputs Two electronically balanced. u Imped ance > 10k ohms. CMRR >65dB 50Hz - 10kHz. Outputs Six electronically balanced. u Source Imp < 60ohms. Min. Load 600ohm. Max. Level +20dBm into 600 ohm load. Frequency Resp . ± 0.5dB 20Hz - 20kHz. Dynamic Range >110dB 20Hz - 20kHz. Unwtd. Distortion < 0.0 2% @ 1kHz, +1[...]

31 12. Operating Notes 12.1. Operating Level With any audio signal processing equipment it is necessary to ensure adequate signal level is used through the device, to avoid sacrificing noise performance. The TDX2 features a menu selectable choice of operating levels to reduce this problem (see section 8.6) It is suggested that the operating level c[...]

32 13. Warranty No maintenance of the TDX2 is required. If servicing is required, it must only be carried out by qualified personnel. Do not remove the top co ver, as there may be a risk of electric shock. All Tannoy electronic components are guaranteed for a period of one year from the date of shipment, subject to the absence of, or evidence of, m[...]

33 14. Appendices 14.1. Appendix 1 : Limiter threshold Limiter threshold in dB to Vrms lookup table. dB Vrms dB Vrms +22 9.75 +5 1.38 +21 8.69 +4 1.23 +20 7.75 +3 1.09 +19 6.90 +2 0.98 +18 6.15 +1 0.87 +17 5.48 0 0.77 +16 4.89 - 1 0.69 +15 4.36 - 2 0.62 +14 3.88 - 3 0.55 +13 3.46 - 4 0.49 +12 3.08 - 5 0.44 +11 2.75 - 6 0.39 +10 2.45 - 7 0.35 +9 2.1[...]

34 14.2. Appendix 2: Default Xover Settings Default X - over settings and names for all formats. X - over Output 1 Output 2 Output 3 Output 4 Output 5 Output 6 2x2 way+Ms Low High Low High Msub Aux 120Hz – 1k82Hz 1k82Hz – 22kHz 120Hz – 1k82Hz 1k82Hz – 22kHz 24.8Hz – 120Hz <10Hz – 22kHz 2 x 3 way Low Mid High Low Mid High 22.1Hz – 1[...]

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36 Tannoy Preset Parameters and the latest downloadable preset files are available from your Tannoy distributor or from our website: www.tannoy.com Tannoy Limited, Professional Division, Coa tbridge, Strathclyde, ML5 4TF, Scotland. Tel: +44 (0) 1236 420199 Fax +44 (0) 1236 428230 e - mail: prosales@tannoy.com Website: www.tannoy.com Tannoy / TGI No[...]