Little Lehle II
Contents
1. emn 13 Little Lehle II as an effects loop switcher for microphones 14 Troubleshootingi si sedi sass ca au 15 Little Lehle Il signal flow diagram ss 18 The Little Lehle II the universal Lehle switch ing and looping tool The Little Lehle II removes effects pedals from the signal path at the press of its button A signal can be picked off at any point in the signal chain to switch to an instrument tuner for example The Little Lehle II can also be used to switch be tween two instruments on one amp or vice versa between two amps with one instrument Extremely diverse sound sources are possible signals from pickups microphones and keyboard line out sockets are routed loss free to the target ampli fier or recorders and all jack plugs are stereo Switches with gold plated contacts assure True Bypass As on this unit s big brother the Lehle D Loop 5605 not only the stereo signal but also the signal ground is switched so hum loops just can t happen any more when switching between two amps or looping effects The easy action mushroom shaped button charac teristic of Lehle products is mounted in the cover so that your foot pressure is transmitted indirectly via only a spring to the slide switch with its gold plated contacts The printed circuit board with the electronics on it is thu2. This socket can be used for connection to the output of an effects unit to the last output of a complete effect chain or for example can also be used for a second instrument It has no function if the Little Lehle II is used as an box for operation with two amplifiers 4 Output socket m Connect your amplifier to this socket The output signal is routed out of the Little Lehle II via this socket The LED 6 shows green when the input signal together with the ground con nection is directly present here Pressing the True Bypass switch 7 routes the R eturn socket signal 3 together with the ground connection to the output socket 5 External power supply W Connect a power pack for a voltage of 8 to 20 V to this socket when needed The Little Lehle II switches all audio signals completely without electricity To detect the switch ing status it requires an 8 to 20V power supply for operation of the LEDs Polarity is of no impor tance The supply voltage is internally rectified and stabilized in order to guarantee trouble free operation A thermal cut out automatically trips and switches the unit off if a short circuit occurs A correctly fitting plug connector for the power supply socket is supplied with the Little Lehle II This can be soldered to the required power unit if necessary It is advisable to use a separate power adapter or an outlet on a multiple outlet power adapter with electrically isolated outlets f
3. power cannot be switched this way since this would mean that the phantom power would be switched off and on Switching phantom power off and on generally causes a loud noise Troubleshooting Something is rattling inside my unit If you should happen to shake the Little Lehle II you will hear a slight metallic rattling from inside This is a mechanical noise caused by a flat spring which diverts the force of the True Bypass switch button on to the horizontal slide switch inside the Little Lehle Il So it is not a defect not a problem just a healthy indication that the spring is not jammed Audible clicking during switching Two things generally can cause switching noise the power supply unit used or a DC voltage component in the audio signal a so called DC offset The first thing to do in order to determine whether the switching noise is caused by the Little Lehle II itself is to remove all other factors if possible from the signal path To do this remove the Little Lehle II s power supply 5 then connect the instrument to the input 1 and the amplifier to the output 4 of the Little Lehle II Use a patch cable and plug it into the Send 2 and the Return socket 3 Send and Return are now bridged The switching noise should now be significantly less or have disap peared completely if not test out other instruments and or other amplifier combinations If contrary to expectations the switching noise does
4. not disappear then please contact our support team at support lehle com Power supply unit Switching noise is frequently the result of using non electrically isolated or severely interference generating digital switched mode power supply units The only solution here is to use a better power supply unit DC offset So called DC offset i e a DC voltage component in the audio signal is a frequent problem and causes loud switching noises which are heard as popping or clicking The Lehle DC Filter is useful in filtering out this DC voltage from the signal and should be connected as shown in the follow ing example Filtering of the DC voltage component at the output of an effects unit The Lehle DC Filter can be used behind the out put of the final effects unit to minimize switching noise if you use one or more effects units in the signal path with an effects loop switcher Lehle pe DC Filter ove Ge Masa ei N Little Lehle O Looper Switcher Device connection DC socket gt Output effects unit s ODC socket gt Return effects loop switcher What to do 1 Connect the output of the effects unit to the DC socket of the Lehle DC Filter 2 Connect the ODC socket of the Lehle DC Filter to the return of the effects loop switcher 3 There you go Filtering the DC voltage component at the input of an amp Many amplifiers and older models in particular including the appreciated vintage
5. signal conductor must be soldered to both the tip and the ring of the plug since the signal on the ring of the jack plug would be muted by a mono jack plug The Little Lehle II as an effects loop switcher for Inserts between Send and Return of an amplifier SEND RETURN 8 20V t s jene Little Lehle O Looper Switcher The Little Lehle can also be excellently used in FX loops of amplifiers to loop in 19 effects or even pedals Low impedance signals with high level the Little Lehle II easily switches without loss of signal Device connection Input 1 gt Amp Send Send 2 gt Input effects unit s Return 3 gt Output effects unit s Output 4 2 Amp Return What to do 1 Connect the Send of your amplifier to the Input socket 1 of the Little Lehle II 2 Connect the input of the effects unit with the Send socket 2 of the Little Lehle II 3 Connect the output socket of the effects unit with the Return socket 3 of the Little Lehle II 4 Connect the Return of your amplifier with the Output socket 4 5 There you go The Little Lehle Il as an A B switcher be tween two amplifiers Little Lehle Looper Switcher The Little Lehle II can be extremely useful for switching when playing live with two amps for instance between the clean sound of amp A and the distorted sound of amp B It also enables you to switch quickly between familiar sounds or to comp
6. Lehle 5 20 le le Little e CE aon Many Lehle GmbH Grenzstr 153 D 46562 Voerde Germany Tel 49 0 2855 850070 www lehle com Dear Musician Thank you for purchasing the Little Lehle II have been building units that switch split and route signals with no technical compromises and with maximum musical fidelity since 1999 Your new Little Lehle Il comprises only the very best compo nents Every assembly of your Little Lehle II has been made and tested in Germany Your Little Lehle Il is of extremely robust design and construction to make sure that you get absolutely years and years of enjoyment from it If you should nonetheless have a problem or simply a ques tion just mail me or a member of the Lehle team at support lehle com wish you the very greatest pleasure and success using your Little Lehle 11 Burkhard Georg Lehle Contents cod od dada 2 Technical data eee 3 General descriptions ls a atata d ai cl 4 Typical uses Little Lehle II as an effects loop switcher sss 8 Little Lehle II as an effects loop switcher for Inserts between Send and Return of an amplifier 9 Little Lehle II as an switcher between two amplifiers mme nenea 10 Little Lehle II as an switcher between two instruments 12 Little Lehle II as a tuner mute switcher
7. amps of course also feature DC voltage at the input which can become noticeable in the form of an unpleas ant switching noise The Lehle DC Filter also provides a remedy here Device connection DC socket gt Input amp ODC socket gt Output amp switcher Lehle DC Filter Litfle Lehle O Looper Switcher What to do 1 Connect the DC socket of the Lehle DC Filter to the input of the amplifier 2 Connect the output of the amp switcher to the ODC socket of the Lehle DC Filter 3 There you go Little Lehle II signal flow diagram Input Output 1 Send 2 1 3
8. are when you are in the studio the rehearsal room Device connection Input 1 gt Instrument Send 2 gt Amp 1 Return 3 Output 4 gt Amp 2 What to do 1 Connect your instrument to the Input socket 1 of the Little Lehle II 2 Connect the first amplifier to the Send socket 2 of the Little Lehle II 3 Do not use socket R 3 4 Connect the second amplifier to the Output socket 4 of the Little Lehle II 5 There you go Note Most amplifiers are connected to a power sup ply using a three core cable two cores supply the power while the third core is the equipment grounding conductor which grounds the amplifier If this ground core is installed it must for safety reasons never be removed taped off or discon nected Because of the grounding and the signal ground of the guitar two amplifiers connected to one guitar can generate background noise This background noise is called ground loop You are guaranteed not to have ground loops when you use the Little Lehle II because it switches not only the signal back and forth between the ampli fiers but also simultaneously the signal ground The Little Lehle Il as switcher between channel and just pulling out the plug can cause two instruments nasty popping from the speakers To do it in just one step Device connection Input 1 gt Instrument 1 Send 2 gt SS Return 3 gt Instrument 2 9 Ou
9. d more vocalists are using effects units to modify the sound of their voices The Little Lehle II is optimally suitable for this function too since it can also switch balanced signals It does not have to be a microphone of course the Little Lehle II also switches other balanced signal sources Device connection Input 1 gt Microphone balanced Send 2 gt Input effects unit balanced Return 3 gt Output effects unit balanced Output 4 gt Input mixer balanced What to do 1 Connect your microphone to the Input socket 1 of the Little Lehle II 2 Connect the input of the effects unit to the Send socket 2 of the Little Lehle II 3 Connect the output of the effects unit to the Return socket 3 of the Little Lehle II 4 Connect the input of your mixer to the Output socket 4 of the Little Lehle II 5 There you go Balanced signal lines are fitted with XLR connectors or TRS Tip Ring Sleeve jack plugs In a balanced signal line the signal is present in phase at the tip as in the case of an unbalanced signal line XLR Pin 2 The second signal conductor carries the same signal but with the opposite polarity or mirror image phase Ring XLR Pin 3 The third conductor is the screening and again constitutes the signal ground Sleeve XLR Pin 1 Jack XLR Ground Sleeve Pin 1 Signal in mirrored phase Ring Pin 3 Signal in phase Tip Pin 2 Note Signals from microphones that require phantom
10. ifficulty on a base plate To do this undo the four housing screws and detach the cover Then fix the device base to a base plate using the two screws the washers and the spacers supplied Replace the cover and tighten the four housing screws done Typical uses The Little Lehle Il as an effects loop switcher 8 20V Lehle 9 O Little Lehle Looper Switcher CE ten You can use the Little Lehle II as a loop switcher for individual effects units and also for complete pedal boards Not all effects pedals feature True Bypass and those that don t can cause signal loss es when deactivated The Little Lehle Il makes it possible to eliminate them from the signal path completely in just one step Device connection Input 1 gt Instrument Send 2 gt Input effects unit s Return 3 gt Output effects unit s Output 4 gt Amp What to do 1 Connect your instrument to the Input socket 1 of the Little Lehle II 2 Connect the input of the effects unit with the Send 2 of the Little Lehle II 3 Connect the output socket of the effects unit with the Return socket 3 of the Little Lehle II 4 Connect the amplifier with the Output socket 4 5 There you go Note This works equally well with both mono and stereo effects If you are using stereo effects via a mono input make sure that all the jack plugs connected to the Little Lehle II are stereo Where a mono signal is present the mono
11. or the Little Lehle II but with no other loads connected to it to avoid interference noise during operation or when switching 6 LEDs for switching status m f the LED shows green the Input 1 is directly connected to the Output 4 The high intensity LEDs clearly indicate the current switching status even under bright spotlights When you use the Little Lehle II as an effects loop switcher and the LED shows green the effects are in Bypass when red they are in the signal path 7 True Bypass switch W Here you can switch Two parallel slide switches with gold plated con tacts which switch the stereo signal together with the ground connections are actuated inside the switcher by means of a practically indestructible switching mechanism The slide switches switch virtually silently since they function completely bounce free Do you hear nevertheless unpleasant sounds like a loud cracking while switching please read chapter Troubleshooting on page 15 8 Base and fixing W You can use the fixing screws supplied with the Little Lehle II to fix it to a base plate or a pedal board for example Screw Bottom plate of switch Washer Spacer Base plate Tip in case you prefer a velcro solution for your pedalboard we recommend to write down the serial number of the pedal before covering it for eventual support matters Thanks to its ready to go fixing system the Little Lehle II can be mounted without d
12. s not exposed to mechanical loads making the Little Lehle II virtually inde structible and guaranteeing years of trouble free switching Technical data Weight Length Width Overall height Voltage range Max power take up Max level 360g 9 cm 3 5 9 2 cm 3 6 5 cm 2 8 20V DC or AC 20 mA 36 dBU 40 mA General description 1 Input socket m Connect your instrument to this socket The input signal enters via this socket Like all the jack plugs on the Little Lehle II the socket is of stereo type The Little Lehle II thus switches stereo signals such as stereo effects or keyboards and balanced signals like those from micro phones for instance and of course simple mono signals like that of an electric guitar The LED 6 shows green when the signal is pres ent on the output 4 together with the ground earth connection Press the True Bypass switch 7 and the stereo signal and ground connection are routed to the S socket 2 The LED 6 will now show red Switching of the ground connections eliminates the possibility of hum loops 2 Send socket W Connect the input of your effects unit or amplifier to this socket Depending on the mode selected this socket is either connected to the input of one or more ef fects units to a second amplifier or for example to a tuner 3 Return socket W Connect the output of your effects unit or a second instrument to this socket
13. tput 4 gt Amp What to do Sia E EET 1 Connect your first instrument to the Input socket 1 of the Little Lehle II Lehle 2 Do not use socket 5 2 O 3 Connect your second instrument to the Return socket 3 of the Little Lehle II Little Lehle O 4 Connect the amplifier to the Output socket 4 of the Little Lehle Il CE 5 There you In order to swap between two instruments quickly and easily you can install the Little Lehle Il be tween the instruments and the rest of your setup It is not always possible to mute your amplifier or PA The Little Lehle Il as a tuner mute switcher 8 20V Little Lehle Looper Switcher O ee Even in smaller setups with only one guitar and one amplifier the Little Lehle II can help by muting the signal while you are tuning up so that your audience and your bandmates do not hear you Device connection Input 1 gt Instrument Send 2 gt Tuner Return 3 gt Output 4 gt Amp What to do 1 Connect your instrument to the Input socket 1 of the Little Lehle II 2 Connect your tuner to the Send socket 2 of the Little Lehle II 3 Do not use the R socket 3 4 Connect your amplifier to the Output socket 4 of the Little Lehle II 5 There you go The Little Lehle II as an effects loop switcher for microphones SEP iA 8 20V s Little Lehle O Looper Switcher More an
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