Lab 12 mighty Owner'S Manual Download Page 7

Lab12 mighty- Class A Single Ended Power Amplifier 

 

Page 

7

 of 

8

 

 

Main connections

 

 

Connect a High-Grade Power cable to the IEC input and to your wall socket. Make sure that your wall 
socket provides a good ground before connecting the power cable

.

 You must supply 230 to 240 Volt 

AC/50Hz  (115 to  120  AC  Volts  /  60Hz).  (Every 

mighty

  is tuned  and  calibrated  using  the 

Lab12 Knack 

mk2 Power Cable.

 

We strongly suggest using this cable). 

 

Connect to your Preamplifier 

 

Connect the preamplifier analog output to the analog line level input of your mighty Power Amplifier. 
Make sure about the correct channel connections. We suggest using a good quality interconnect cable 
pair. 

 

 

Connect your Speakers 

 

Connect your speakers to the additional output of mighty (connect speakers from 2 to 6 ohm at 

4ohm

 

positive bind, speakers from 6 to 16 ohm at 

8ohm

 bind). Make sure about the phase and polarity of 

speakers, 

always connect ‘’plus’’

 

(red) bind of Mighty to ‘’plus’’

 (red) bind of speaker and same with 

black.

 

 

 

Notes:   

 

You can choose the operation of mighty between 

Triode or Ultra Linear pentode mode

, to tune the 

sound closest to your taste. 
 
This  can  be  done  thru  two  toggle  switches  on  the  back  of  power  tubes.  Position  both  switches 
towards to transformers for triode mode or towards to tubes for Ultra Linear pentode mode. 
You can change the operation even when amplifier is turned on with just lowering the volume. 
 
Mighty is fully compatible with the best octal tubes (EL34, 6550, KT88). You can use any of these three 
types of tubes with no problem. 

 

    
 
 

 
 

 

Summary of Contents for mighty

Page 1: ...Page 1 of 8 Owner s Manual mighty Class A Single Ended Power Amplifier www lab12 gr manual v1 4 ...

Page 2: ...le Ended Power Amplifier Page 2 of 8 Table of Contents It is yours 3 Unpacking and Warnings 3 Features 4 Installation Placement 4 Front Panel 5 Rear Panel 6 Main connections 7 For the safety of your equipment 8 Specifications 8 ...

Page 3: ...nalogue V U meters Do not forget that your mighty is totally handcrafted with perfectly matched parts of the finest selections In order to reach the optimal performance your mighty needs at least 150 hours of listening In this time all components go from burn in period to stable Before setting up your new mighty we encourage you to thoroughly read this manual to properly acquaint yourself with its...

Page 4: ...ormance and reliability Insert the tubes carefully in each position All tubes are marked with position number was placed during calibration and burn in of mighty Due to high power tubes design mighty chassis could be hot so you should never place another hot component directly near this device Make sure the device has enough space to ventilate Tubes will be hot this is normal Be careful not to tou...

Page 5: ...LEDs and two VU meters The three LEDs C indicate that the device is powered on To the left of the 3 LEDs you see a retro analog VU meter A You can accurately monitor the output level of left channel on dB scale To the right of the 3 LEDs you see a retro analog VU meter B You can accurately monitor the output level of right channel on dB scale ...

Page 6: ... you will find an IEC AC input Below IEC input the main fuse holder A and the Power switch B are located A pair of RCA connectors C is located about in the middle of the back panel It is the input of signal from your preamplifier Bellow signal input you can find the speaker outputs D E You have the choice of 4 or 8 ohm output for perfect matching with your speaker impedance ...

Page 7: ... pair Connect your Speakers Connect your speakers to the additional output of mighty connect speakers from 2 to 6 ohm at 4ohm positive bind speakers from 6 to 16 ohm at 8ohm bind Make sure about the phase and polarity of speakers always connect plus red bind of Mighty to plus red bind of speaker and same with black Notes You can choose the operation of mighty between Triode or Ultra Linear pentode...

Page 8: ... It is possible to damage tubes or even output transformers Specifications Power 230VAC 50Hz 115VAC 60Hz Power consumption 150 VA max Output power 10 Watt per channel Frequency response 20 Hz 25 KHz 0 9dB Input impedance 100K ohm Recommended speakers 4 8 ohm Tube complement 2x 6n1p dual triodes 2x EL34 Power Pentodes Input sensitivity 600mV triode mode 400mV Ultra Linear mode Inputs 1x line stereo...

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