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HERETIC OWNER’S MANUAL 

PAGE 6 OF 16 

 
 
 
People sometimes inquire about the lack of an effects send.  There is one.  When the loop is 
engaged, each Volume control becomes that Volume/Gain’s effects send.  So, when on the 
clean channel with the loop engaged, the Volume control on the clean channel becomes the 
effects send.  When on Channel 2, Volume/Gain A, that Volume control becomes 2A’s effects 
send, and so on.  So if you’re clipping your effects, that is the control to reach for. 
 
What about that E. Return knob on the front panel?  When the loop is on, the E. Return knob 
replaces  each  channel’s  volume  control  and  becomes  the  overall  master  volume  control.  
This  turns  each  Volume  control  into  a  balancing  control  to  level  out  channel  volumes  (and 
that channel’s effects send as noted in the preceding paragraph).   What is the advantage to 
this?  When you have the loop engaged, you can heat up the preamp to drive the channel 
hotter while controlling the overall volume.   
 
Let’s do a test.   
 

1.  Set your amp on Channel 2A.   

 

2.  Set the Gain at 6 and the Volume at 4.  It should be pretty loud.   

 

3.  Now,  make  sure  the  E.  Return  control  is  set  to  0  and  plug  a  short  patch 

cable into the loop (provided), jumping the Send to the Return.  When you 
play now, you should hear nothing.   

 

4.  Gently  bring  the  E.  Return  knob  up.    When  you  get  to  about  2  or  3,  you 

should  be  at  a  normal,  listenable  level  for  home  practice,  and  tonally  the 
amp should be about the same.   

 

5.  Leave the E. Return knob on 2 or 3 (wherever you ended up) and bring the 

volume  level  of  2A  up  to  about  6  or  7.    You’ll  hear  the  amp  getting  a  lot 
hotter but the volume will remain listenable (although a little louder). 

 

6.  Unity gain is about 5.  So, if you bring the E. Return up to 5, you should be 

able to unplug the loop without any volume difference. 

 

7.  Now  switch  back  and  forth  between  the  channels  setting  the  Volume 

controls  to  a  nice,  balanced  level  or  vary  them  from  one  to  the  other  as 
desired. 

 

It is perfectly normal to run the amp with a short (1’ or 2’) patch cable in the loop at all times.  
If you like having the master, jump the loop.  If you don’t want it, take it out. 
 

 
 
 
 

Summary of Contents for Heretic

Page 1: ...OWNER S MANUAL ...

Page 2: ...nd will give you years of enjoyment if it is well maintained Before you begin remember learn your amp and you ll be in the best position to achieve the tones and performance you want So please take the time to read this manual Afterwards enjoy the finest in tone and American craftsmanship Diamond Amplification Jeff Diamant President CEO ...

Page 3: ...ANUAL FEATURES 1 FRONT PANEL 2 REAR PANEL 2 MAKING CONNECTIONS 2 BEFORE YOU BEGIN 4 QUICK START GUIDE 4 POWER STANDBY 5 DIALING IN 5 EFFECTS LOOP 5 TONE VOLUME CONTROLS 7 CHANNEL 1 9 CHANNEL 2 10 DEEP CONTROL 11 ...

Page 4: ...SWITCHING 11 FRONT PANEL SWITCHING 11 HERETIC CONTROLLER 11 ALTERNATE SWITCHING METHODS 12 TUBES 13 TUBE LAYOUT 13 CHANGING REPLACING TUBES 13 DIAGNOSING TUBE PROBLEMS 14 ...

Page 5: ...el 2 switchable allows for two gain settings with 2 volumes for level adjustment to match volumes 2 switch foot controller for access to all three volume gain controls Channel 1 Channel 2A Channel 2B connected with a TRS cable Footswitch connects through TRS stereo 1 4 jacks allowing for switching through a variety of other devices Rear panel dialable Deep control 110v 120v 220v and 230 240v power...

Page 6: ...d technician Speakers Your DA product comes equipped with two speaker jacks Always ensure when connecting speakers that you use a high quality speaker cable Never use instrument cable to connect your amp to speakers and never put effects between your amp and speakers If you are using one speaker cabinet you can plug into either speaker jack Make sure your impedance selector is set to the same impe...

Page 7: ...nds Effects loop Your effects loop is a series loop with a shorting jack in the Return position What does this mean to you When you plug a cable into the effects return it goes active When you unplug the cable in the Return position the loop return goes inactive If you are using for whatever reason your amp just for its power stage no problem When you plug into the loop return you re set When you ...

Page 8: ...echnician Following these guidelines will extend the life of your amp Enjoy QUICK START GUIDE So you re an experienced user you ve made your connections and you re ready to go Here s a few settings to get you started and dial you in some quick tones to get rockin NOTE Unlike most amps dialing any control to or near 10 is not recommended Like most good amps you won t need or want to vary too far fr...

Page 9: ...rned on the jewel light will illuminate to indicate power is on and when you have made all the appropriate connections take the amp off standby Allow the amp to warm up for several minutes before playing for optimal result You should always return the amp to standby before turning off to allow the amp to discharge voltage Doing this habitually will extend the life of your amp DIALING IN EFFECTS LO...

Page 10: ...verall volume Let s do a test 1 Set your amp on Channel 2A 2 Set the Gain at 6 and the Volume at 4 It should be pretty loud 3 Now make sure the E Return control is set to 0 and plug a short patch cable into the loop provided jumping the Send to the Return When you play now you should hear nothing 4 Gently bring the E Return knob up When you get to about 2 or 3 you should be at a normal listenable ...

Page 11: ... Well often those go karts came with some sort of governing device You can put the proverbial pedal to the metal but the kart will only go so fast So dime your gain But when it s not fast enough open up that governor by introducing some volume As you bring up the volume and heat up the channel mashing that gas pedal starts to really get that machine moving When deciding how to run your volume gain...

Page 12: ...nge your tone After you ve set your other controls work on this one Set your mids at 5 and see what you think Then to hear the variance sweep the mid range from 3 or 4 on the low range to 9 or 10 on the high NOTE TO US METAL GUYS Don t be afraid of your mids All the crunch in the world is fine so long as the audience can hear us Take out too many mids and you ll get lost in the mix Keep your mids ...

Page 13: ...t leaving the volume in place Now pick any spot on the gain setting above at least 3 and varying the volume controls For a punchier rounder blues tone you ll find lower gain settings with high volume to be great For more break up bring the volume not quite as high but drive the gain more For classic rock tones try the gain knob anywhere from 6 8 and vary the volume control same principle high volu...

Page 14: ...trols will tone alter the amp more than any others on this channel NOTE In both examples none of the controls vary far from 5 You should dial similarly when you work the amps to get your sound OK so what about that Volume Gain B Are the different from Volume Gain A No Switching between them is like turning the knob So for example set Volume A and Volume B at 5 Set Gain A at 7 Set Gain B at 3 Now t...

Page 15: ...p to switch back It is recommended that if you want to switch back from Channel 2B to Channel 1 that you set both Switch 1 and Switch 2 to off HERETIC CONTROLLER FOOTSWITCH The supplied footswitch is as rugged as the amp Featuring the highest grade of switches and a 14 gauge steel chassis you ll be hard pressed to kill this piece The footswitch is connected through the use of a TRS cable Any stand...

Page 16: ...To get the most of your amp if you re a MIDI kinda player we recommend our MAC 2 which will allow you to use this jack and switch your amp with any standard MIDI controller MIDI In Thru also allows you to control your MIDI effects and your amp at the same time from one controller The MAC 2 s 4th jack is a TRS jack for this purpose If your switching device whatever it is does not utilize TRS switch...

Page 17: ...ged every 6 months to a year If you don t play frequently they can last longer NOTE While power tubes can simply and suddenly fail they generally degrade over time So while your tubes may be working they will not sound the same as they get older People often go years with the same power tubes and never replace them claiming Well they still work fine You can be assured that the amp however does not...

Page 18: ...ppens again replace your power tubes If the tube glows cherry red shut the amp off immediately As power tubes are wired in pairs a failure of this nature in one tube can cause the other tube in the pair to fail with it If you encounter this problem as noted shut the amp down immediately Wait a few minutes and fire it back up If it happens again replace the tubes before using the amp again If not y...

Page 19: ...st is NOT outcome determinative If the problem is only on one channel or the other you ll know which tube is the problem If it s only on the clean channel it s tube V2 If it s on the crunch channel it is either V3 or V4 but most likely V3 NOTE V1 usually is the culprit Even if you don t hear it on both channels you should check V1 anyway Tube problems are much more dramatic on V1 than any other po...

Page 20: ...DIAMOND AMPLIFICATION INC 5261 LANGFIELD RD HOUSTON TEXAS 77040 713 934 0100 TEL 713 934 0155 FAX www diamondamplification com ...

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