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Summary of Contents for Diamond Amplification Spec Op
- Page 1 owner’s manual...
- Page 2 Thank you for the purchase of your new Diamond Amplification Spec Op 100watt guitar amplifier. This amplifier is of the highest quality and 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...
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Page 3: Table Of Contents
EFFECTS LOOP ......................6 TONE/VOLUME CONTROLS ..................8 BOOST ........................12 SWITCHING ........................13 FRONT PANEL SWITCHING ................... 13 SPEC OP CONTROLLER ..................13 ALTERNATE SWITCHING JACKS ................14 TUBES ..........................15 TUBE LAYOUT ......................15 CHANGING/REPLACING TUBES ................15 DIAGNOSING TUBE PROBLEMS ................ -
Page 4: Features
Welcome to a new world in guitar amplification. Combine the functionality you want with the tried and true technology of tube tone, wrap that in a completely new approach to the structure of a high gain sound, and unleash the dynamic range of Diamond Amplification’s Spec Op. -
Page 5: Front Panel
If you are unsure of the impedance of your speaker cabinet, please find out before making your connection. Spec op owner’s manual Page 2 of 18 (rev 2) - Page 6 When the amp is used in this manner, the particular channel volume control becomes that channel’s “master” volume, which is functionally operating as the loop “send” level. Spec op owner’s manual Page 3 of 18 (rev 2)
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Page 7: Before You Begin
Treble 5 d. Middle 5 e. Bass 4 f. Presence 5 2. Dial Channel 2 like this: a. Gain A 6 b. Volume A 6 c. Treble 5 d. Middle 4.5 Spec op owner’s manual Page 4 of 18 (rev 2) -
Page 8: Power/Standby
Bass boosts are wonderful, but usually end up boosting frequencies found in your bass player’s rig, which will assuredly overpower your new low Spec op owner’s manual Page 5 of 18 (rev 2) -
Page 9: Effects Loop
The Effects Loop is tube driven. It is wired in series and there is no need to turn it on or off. The Return jack will activate when you put a cable in it. Hence, when you plug a cable in, it turns on. When you unplug it, it’s off. Spec op owner’s manual Page 6 of 18 (rev 2) - Page 10 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. Spec op owner’s manual Page 7 of 18...
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Page 11: Tone/Volume Controls
This can result in feedback and squeals. It will also push the tubes beyond where they optimally perform. On your crunch channel, Spec op owner’s manual Page 8 of 18 (rev 2) - Page 12 0-4 on the dial. When the presence knob is dialed up north of around 4, you’ll really start to hear the change. If you want your tone more aggressive, roll the presence up. If you want to smooth it out a bit, bring it down. Pretty simple, huh? Spec op owner’s manual Page 9 of 18 (rev 2)
- Page 13 NOTE: Work your guitar’s volume knob and listen to how well the amp cleans up. Try a setting with more gain, then roll off your guitar’s volume to clean it up, rolling the volume back up for grittier passages or leads. Spec op owner’s manual Page 10 of 18 (rev 2)
- Page 14 Bright, British, Tight and Punchy Lower Gain setting: Presence: Bass: Middle: Treble: Volume: Gain: Modern, Heavy and Thick High Gain setting: Presence: Bass: Middle: Treble: Volume: Gain: Spec op owner’s manual Page 11 of 18 (rev 2)
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Page 15: Boost
It is rare that DA players use much more than about 2 to 3 on the dial, but there’s plenty of headroom there if you need it. Spec op owner’s manual Page 12 of 18... -
Page 16: Switching
So we recommend you use the boost as an intermittent feature rather than an “always on” feature. SWITCHING Your Spec Op provides you a number of ways to switch your amp. Let’s get familiar with all of them! FRONT PANEL SWITCHING Your amp’s front panel comes equipped with 3 small toggle switches. -
Page 17: Alternate Switching Jacks
(e.g., the Diamond Amplification/RJM Music MAC-2, a Bradshaw (Custom Audio Electronics) switching system, an RJM Music Amp Gizmo, a TC Electronic G-System, a GCX switching system or a simple latching footswitch). -
Page 18: Tubes
DA for instruction. But generally, bias should average between 35 and 39 milliamps between the two outside tubes. You will need a Bias King or similar bias probe to check this. Spec op owner’s manual Page 15 of 18... -
Page 19: Diagnosing Tube Problems
If you can tell that it is in both channels (even if only slightly on one channel), it is most likely V1, which is common to both channels. A noisy Spec op owner’s manual Page 16 of 18... - Page 20 NOTE: It is always advisable to change preamp tubes one at a time. It is a good idea to keep at least one known good preamp tube for this purpose. Then you will know for sure if you have found the problem. Spec op owner’s manual Page 17 of 18 (rev 2)
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Page 21: Changing Fuses/Voltages (Working With The Corcom)
CHANGING FUSES/VOLTAGES (WORKING WITH THE CORCOM) Spec op owner’s manual Page 18 of 18 (rev 2) - Page 22 Diamond Amplification, Inc. 5261 Langfield Rd. Houston, Texas 77040 713.934.0100 (tel) 713.934.0155 (fax) www.diamondamplification.com...
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