MTD 110-112A Specifications

Version 1.1 February 2003 L-ACOUSTICS MTD LINE MTD108a, MTD112b, MTD115b OPERATOR MANUAL

L-ACOUSTICS MTD Manual V1.1 2/11/2003 9 MTD112b ETR1 MTD115b ETR2 (for MTD115b or SB115) PION1 F-CABLE DO7 F-LINK CABLE DO.7 Figure 1: MTD S

L-ACOUSTICS MTD Manual V1.1 2/11/2003 10 MTD108 LLCa (front) MTD108 LLCa (rear) LLC112b-st (front) LLC112b-st (rear)

L-ACOUSTICS MTD Manual V1.1 2/11/2003 11 LLC115b-st (front) LLC115b-st (rear) LLC115b-2w (front) LLC115b-2w (rear) Figure 2: MTD LLC Controlle

L-ACOUSTICS MTD Manual V1.1 2/11/2003 12 1.2 MTD OVERVIEW L-ACOUSTICS MTD108a, MTD112b and MTD115b loudspeaker enclosures along with their respecti

L-ACOUSTICS MTD Manual V1.1 2/11/2003 13 1.3 MTD108a SPECIFICATIONS The MTD108a is a passive 2-way coaxial full range loudspeaker containing one 8-

L-ACOUSTICS MTD Manual V1.1 2/11/2003 14 1.4 MTD112b SPECIFICATIONS The MTD112b is a passive, two-way, coaxial full range loudspeaker containing on

L-ACOUSTICS MTD Manual V1.1 2/11/2003 15 1.5 MTD115b SPECIFICATIONS The MTD115b is a switch-selectable active/passive, two-way, coaxial full range

L-ACOUSTICS MTD Manual V1.1 2/11/2003 16 2. POWERING MTD It is important that power amplifiers with sufficient power are used to power MTD108a, MTD

L-ACOUSTICS MTD Manual V1.1 2/11/2003 17 2.1 POWERING MTD108a Continuous (rms) and peak power handling ratings for the MTD108a are as follows: 45 v

L-ACOUSTICS MTD Manual V1.1 2/11/2003 18 2.2 POWERING MTD112b Continuous (rms) and peak power handling ratings for the MTD112b are as follows: 45 v

L-ACOUSTICS MTD Manual V1.1 2/11/2003 1 FOREWORD Thank you for purchasing the MTD108a, MTD112b or MTD115b sound reinforcement system. This manua

L-ACOUSTICS MTD Manual V1.1 2/11/2003 19 2.3 POWERING MTD115b (PASSIVE MODE) Continuous (rms) and peak power handling ratings for the MTD11b (passi

L-ACOUSTICS MTD Manual V1.1 2/11/2003 20 2.4 POWERING MTD115b (ACTIVE MODE) Continuous (rms) and peak power handling ratings for the MTD115b in act

L-ACOUSTICS MTD Manual V1.1 2/11/2003 21 Table 12: Recommended power amplification and MLS switch settings for MTD115b high section MTD115b HI SECT

L-ACOUSTICS MTD Manual V1.1 2/11/2003 22 L-ACOUSTICS LA 15a POWER MATRIX L-ACOUSTICS LA 17a POWER MATRIXMLS SWITCH SETTING MLS SWITCH SETTINGLO

L-ACOUSTICS MTD Manual V1.1 2/11/2003 23 2.5 CONNECTORS AND CABLES MTD108a, MTD112b and MTD115b are all supplied with dual NL

L-ACOUSTICS MTD Manual V1.1 2/11/2003 24 3. PROCESSING MTD 3.1 L-ACOUSTICS MTD108 LLCa DESCRIPTION The MTD108LLCa line level c

L-ACOUSTICS MTD Manual V1.1 2/11/2003 25 OVER mode, a 100 Hz high pass filter is applied since the MTD112b is intended to be u

L-ACOUSTICS MTD Manual V1.1 2/11/2003 26 amplifier inputs with the amplifier outputs then connected to the controller "Se

L-ACOUSTICS MTD Manual V1.1 2/11/2003 27 4.1 MTD108a FLOOR

L-ACOUSTICS MTD Manual V1.1 2/11/2003 28 4.2 MTD108a FOH SY

L-ACOUSTICS MTD Manual V1.1 2/11/2003 2

L-ACOUSTICS MTD Manual V1.1 2/11/2003 29 4.3 MTD108a FOH SY

L-ACOUSTICS MTD Manual V1.1 2/11/2003 30 4.4 MTD112b FLOOR

L-ACOUSTICS MTD Manual V1.1 2/11/2003 31 4.5 MTD112b FOH SY

L-ACOUSTICS MTD Manual V1.1 2/11/2003 32 4.6 MTD112b FOH SY

L-ACOUSTICS MTD Manual V1.1 2/11/2003 33 4.7 MTD115b (PASSI

L-ACOUSTICS MTD Manual V1.1 2/11/2003 34 4.8 MTD115b (PASSI

L-ACOUSTICS MTD Manual V1.1 2/11/2003 35 4.9 MTD115b (PASSI

L-ACOUSTICS MTD Manual V1.1 2/11/2003 36 4.10 MTD115b (ACTI

L-ACOUSTICS MTD Manual V1.1 2/11/2003 37 4.11 MTD115b (ACTI

L-ACOUSTICS MTD Manual V1.1 2/11/2003 38 4.12 MTD115b (ACTI

L-ACOUSTICS MTD Manual V1.1 2/11/2003 3 TABLE OF CONTENTS FOREWORD...

L-ACOUSTICS MTD Manual V1.1 2/11/2003 39 5. SOUND DESIGN 5.

L-ACOUSTICS MTD Manual V1.1 2/11/2003 40 Figure 19: Gen

L-ACOUSTICS MTD Manual V1.1 2/11/2003 41 125 Hz 250 Hz 5

L-ACOUSTICS MTD Manual V1.1 2/11/2003 42 AVOIDWORKSBEST Fig

L-ACOUSTICS MTD Manual V1.1 2/11/2003 43 5.4 PREDICTING MTD

L-ACOUSTICS MTD Manual V1.1 2/11/2003 44 binoculars can pro

L-ACOUSTICS MTD Manual V1.1 2/11/2003 45 possible in order

L-ACOUSTICS MTD Manual V1.1 2/11/2003 46 5.7 STAGE MONITORI

L-ACOUSTICS MTD Manual V1.1 2/11/2003 47 Table 16: Nominal

L-ACOUSTICS MTD Manual V1.1 2/11/2003 48 SIDE FILL OR DRUM

L-ACOUSTICS MTD Manual V1.1 2/11/2003 4 6. INSTALLATION PROCEDURES ...

L-ACOUSTICS MTD Manual V1.1 2/11/2003 49 The subwoofer outp

L-ACOUSTICS MTD Manual V1.1 2/11/2003 50 5.8.3 Separate Flo

L-ACOUSTICS MTD Manual V1.1 11-02-03 51 6. INSTALLATION PROCEDURES 6.1 ETR8 U-BRACKET ATTACHMENT(MTD108a) (1) MTD108a and ETR8 U-bracket (2) R

L-ACOUSTICS MTD Manual V1.1 11-02-03 52 6.2 ETR1, ETR2 U-BRACKET ATTACHMENT (MTD112b, MTD115b) (1) MTD112b and ETR1 U-Bracket (2) Remove ETR1adap

L-ACOUSTICS MTD Manual V1.1 11-02-03 53 6.3 OMNIMOUNT ATTACHMENT (MTD112b, MTD115b) (1) Remove Omnimount attachment screws (5 mm allen key) (2) A

L-ACOUSTICS MTD Manual V1.1 11-02-03 54 7. MTD SYSTEM OPERATION Please refer to Section 4 for cabling and configuration details for typical MTD sys

L-ACOUSTICS MTD Manual V1.1 11-02-03 55 b) LF Service The 8”, 12” or 15'' loudspeaker components of the coaxial assemblies used in the MT

L-ACOUSTICS MTD Manual V1.1 11-02-03 56 8. SPECIFICATIONS 8.1 MTD108a SPECIFICATIONS Frequency Response Frequency response: 85 – 20k Hz (± 3 dB)

L-ACOUSTICS MTD Manual V1.1 11-02-03 57 Figure 30: MTD108a line drawing

L-ACOUSTICS MTD Manual V1.1 11-02-03 58 Figure 31: MTD108a plus ETR8 line drawings

L-ACOUSTICS MTD Manual V1.1 2/11/2003 5 Figure 24: SPL mappings for four MTD enclosures with 0.5 metre spacing. ...

L-ACOUSTICS MTD Manual V1.1 11-02-03 59 8.2 MTD108LLCa SPECIFICATIONS Technical Inputs Electronically balanced 10 kΩ input (pin 2 hot) Outputs

L-ACOUSTICS MTD Manual V1.1 11-02-03 60 8.3 MTD112b SPECIFICATIONS Frequency Response Frequency response: 70 – 14k Hz (± 3 dB) (LLC FRONT posit

L-ACOUSTICS MTD Manual V1.1 11-02-03 61 Figure 32: MTD112b line drawing

L-ACOUSTICS MTD Manual V1.1 11-02-03 62 Figure 33: MTD112b plus ETR1 line drawings

L-ACOUSTICS MTD Manual V1.1 11-02-03 63 8.4 LLC112b-st SPECIFICATIONS Technical Inputs Electronically balanced 10 kΩ input (pin 2 hot) Outputs

L-ACOUSTICS MTD Manual V1.1 11-02-03 64 8.5 MTD115b SPECIFICATIONS Frequency Response Frequency response: 65 – 14k Hz (± 3 dB) (LLC FRONT posi

L-ACOUSTICS MTD Manual V1.1 11-02-03 65 Figure 34: MTD115b line drawing

L-ACOUSTICS MTD Manual V1.1 11-02-03 66 Figure 35: MTD115b plus ETR2 line drawings

L-ACOUSTICS MTD Manual V1.1 11-02-03 67 8.6 LLC115b-st, LLC115b-2w SPECIFICATIONS Technical Inputs Electronically balanced 10 kΩ input (pin 2 h

L-ACOUSTICS MTD Manual V1.1 11-02-03 68 Rear Panel Connectors LLC115b-st Ch A, B XLR line outputs (LLC 115b-st) MONO SUB XLR output (in paralle

L-ACOUSTICS MTD Manual V1.1 2/11/2003 6 0. INTRODUCTION Effectively covering an audience is the goal of any sound reinforcement system design. This

L-ACOUSTICS MTD Manual V1.1 2/11/2003 7 Loudspeaker focus or aiming can be adjusted so that maximum HF energy is directed towards the farthest liste

L-ACOUSTICS MTD Manual V1.1 2/11/2003 8 LINE LEVEL CONTROLLERS (7) MTD108 LLCa Stereo analog line level controller for use with the MTD108a (8) LLC1