TOA Electronics TDX2 manual

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Table of contents for the manual

  • Page 1

    TDX2 USER MANUAL[...]

  • Page 2

    2[...]

  • Page 3

    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[...]

  • Page 4

    4[...]

  • Page 5

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

  • Page 6

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

  • Page 7

    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[...]

  • Page 8

    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[...]

  • Page 9

    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, [...]

  • Page 10

    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[...]

  • Page 11

    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[...]

  • Page 12

    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 [...]

  • Page 13

    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[...]

  • Page 14

    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[...]

  • Page 15

    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[...]

  • Page 16

    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[...]

  • Page 17

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

  • Page 18

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

  • Page 19

    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 [...]

  • Page 20

    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[...]

  • Page 21

    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[...]

  • Page 22

    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’ [...]

  • Page 23

    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[...]

  • Page 24

    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?[...]

  • Page 25

    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[...]

  • Page 26

    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[...]

  • Page 27

    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.[...]

  • Page 28

    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.[...]

  • Page 29

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

  • Page 30

    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[...]

  • Page 31

    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[...]

  • Page 32

    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[...]

  • Page 33

    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[...]

  • Page 34

    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[...]

  • Page 35

    35[...]

  • Page 36

    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[...]