- MESA/Boogie Support
- Frequently Asked Questions
Frequently Asked Questions
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Amplifiers
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When was my amp made?
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Does my JP-2C have the loop update?
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How are the Tubes arranged in a Simul-Class 2:90 - I vs. II?
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How can I learn more about a product Out of Production?
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How can I tell which version Dual Caliber - DC Series amp I have?
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How can I tell which version Single Rectifier amp (Solo 50, Rect-O-Verb 50) I have?
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How can I update the MIDI software for my JP-2C?
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How can I update the MIDI software for my Triple Crown TC-50?
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How do the External Switching Jacks work on the Mark V?
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How does the Program/Channel button work on a TriAxis?
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Is my Mark II a Mark IIC+?
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Is my Mark IV an A or B model?
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Can a MESA Stereo Power Amp be run Mono?
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What features distinguish Multi-Watt Dual & Triple Rectifiers from previous models?
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What is Class A and how does it differ from Class AB?
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What is the click I hear when I turn on my SUBWAY D-800?
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What is the Power Consumption of my amplifier?
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What is the quickest method for dialing great tones with a Lone Star?
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What Version Mark III do I own?
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What TriAxis version do I have?
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Why is the Limit light on my Subway D-800 or D-800+ staying on continuously?
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Where is the Serial Number on my Mesa Amp?
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Why is there occasionally a delay when powering up a SUBWAY D-800 or D-800+?
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When was my amp made?
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Cabinets
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What cabinet is best suited for my amplifier?
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What is the best way to connect speakers or cabinets?
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Do you sell replacement cabinets?
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Do you sell replacement grilles or grille material?
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How can I care for and maintain my hardwood cabinet?
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How can I tell if my speakers are wired "in phase"?
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How does the Player Control Network function on my Bass Cabinet?
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Why does my speaker's rated impedance not match an ohm meter reading?
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What cabinet is best suited for my amplifier?
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Signal Management
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Can I connect pedals between the CLEARLINK™ CONVERTER/ISO TRANSFORMER and the input of my amplifier?
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Can I plug my guitar directly into the CLEARLINK™ BUFFER/BALANCED LINE-DRIVER, using it as an input buffer at the start of my pedalboard?
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Can I use the CLEARLINK™ CONVERTER/ISO TRANSFORMER as a DI-box?
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Can I use the CLEARLINK™ CONVERTER/ISO TRANSFORMER for re-amping?
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Can I use the CLEARLINK™ CONVERTER/ISO TRANSFORMER without a CLEARLINK™ BUFFER/BALANCED LINE-DRIVER to break a ground loop that is causing buzz, hum and noise?
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Can I use your Buffers for my bass?
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Can I use the HIGH-WIRE™ DUAL BUFFER/OUTPUT BOOST as a three-way splitter for two amps and a tuner?
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Can I use another STOWAWAY™ INPUT BUFFER at the end of my pedalboard to drive a long cable run to my back-line amplifier?
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How does an Abacus work?
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I am running multiple amplifiers, each with a CLEARLINK ™ CONVERTER/ISO TRANSFORMER, but (one or) some of them (still) have a buzz/hum, how can I get rid of it?
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I am running multiple amplifiers, each with a CLEARLINK ™ CONVERTER/ISO TRANSFORMER, but my tone (still) sounds weird, why is that?
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I’m using a switched-mode power adapter/supply (SMPS) and hear a high pitch “whine”, why is that?
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I would like to use a vintage fuzz pedal, but have been told that they don’t work well with buffered signals, is this true?
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Should I use a Buffer in my amp's effects loop?
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What is “galvanic isolation” and does the CLEARLINK ™ CONVERTER/ISO TRANSFORMER have it?
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What’s the maximum length of cable I can use between my guitar and the HIGH-WIRE™ DUAL BUFFER/OUTPUT BOOST’s input?
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What’s the maximum length of cable that the CLEARLINK ™ BUFFER/BALANCED LINE-DRIVER can drive?
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Why wasn’t a transformer isolated output provided in the CLEARLINK™ BUFFER/BALANCED LINE-DRIVER, for splitting or ground loop elimination applications?
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What’s the maximum length of cable I can use between my guitar and the STOWAWAY™ INPUT BUFFER’s input?
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Can I connect pedals between the CLEARLINK™ CONVERTER/ISO TRANSFORMER and the input of my amplifier?
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Troubleshooting
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Tubes & Fuses
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Why should you only use MESA/Boogie® tubes in MESA amps?
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What’s up with the color coding of your power tubes?
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How are MESA tubes selected?
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How are MESA tubes tested?
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How can I troubleshoot tube issues?
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How long will tubes last?
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How do fuses work and why do they blow?
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What is a Rectifier?
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What is a SPAX7 and how is it best used?
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What is the difference in a 6L6 and EL-34?
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Can I remove Power Tubes in a Dual or Triple Rectifier Head to lower its wattage?
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Why should you only use MESA/Boogie® tubes in MESA amps?