Mesa/Boogie RECTO-VERB 25 Owner's Manual
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Mesa/Boogie RECTO-VERB 25 Owner's Manual

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Summary of Contents for Mesa/Boogie RECTO-VERB 25

  • Page 1 RECTO-VERB 25 Owner’s Manual...
  • Page 2 Hello from the Home of Tone Discerning player and all around intuitive human that you are, you’ve put your trust in us to be your amplifier company. This is something we don’t take lightly. By choosing this instrument to be a part of your musical voice, you have become much more than a customer to us, you’re now a lifetime member of the MESA worldwide family.

  • Page 3: Important Safety Instructions

    Important Safety Instructions • Read these instructions. • Follow all instructions. • Keep these instructions. • Heed all warnings. • Do not use this apparatus near water. • Clean only with dry cloth. • Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. •...

  • Page 4: Table Of Contents

    Multi-Watt Recto-VerbTwenty-Five TABLE OF CONTENTS OVERVIEW ______________________________________________________________ 1-2 FRONT PANEL CONTROLS Getting Started & Helpful Hints _________________________________________________ 3 CHANNEL MODES Channel 1: Clean / Pushed ___________________________________________________ 3-4 Channel 2: Vintage / Modern ___________________________________________________ 4 Multi-Watt™ Power ___________________________________________________________ 4 THE CONTROLS Gain, Treble _______________________________________________________________ 4-5 Mid, Bass and Presence ______________________________________________________ 6-7 Master _____________________________________________________________________ 7...
  • Page 5 From the feedback we’ve received thus far… it seems the Recto-Verb 25 and its little brother the Mini Rectifier Twenty-Five is on its way toward achieving that status. FRONT PANEL: RECTO-VERB Twenty-Five Combo...

  • Page 6: Overview

    The FX Loop on the Recto-Verb 25 is wired in Series. We are pleased by the added juice these tube stages impart on the signal as, after all, it’s no easy feat to add a Loop that enhances –...

  • Page 7: Front Panel Controls

    CHANNEL 1: CLEAN / PUSHED CLEAN: This is the lowest gain circuit of the Recto-Verb 25’s four modes and is opti- mized for producing balanced pristine clean sounds. For the best understanding of how to achieve a great sound in this mode, please refer to the GAIN Control section of this manual.

  • Page 8: Channel 2: Vintage / Modern

    Tone control network is tuned for the brighter nature of clean sounds, this mode responds more quickly to your pick attack and has a more urgent, snappy feel. Don’t overlook this mode for some of the Recto-Verb 25’s coolest overdrive solo sounds.
  • Page 9 Gain all the way up! If you must for a specific part, or at very low volumes, back down the TREBLE and PRESENCE Controls. Your Recto-Verb 25 was designed to provide amazing gain and tone at less than extreme settings, removing the need for you to crank everything all the way up.
  • Page 10 TREBLE Control in its middle ranges. This scenario produces nearly equal representation of all the frequencies on the Tone controls and provides a great neutral starting point for further tweaking. While the Recto-Verb 25’s EL-84 power section is not capable of delivering the massive amount of VARIABLE ACCORDING bass frequencies that the big Rectos do with their 6L6 power tubes, it is still worth mentioning to TO TREBLE &...
  • Page 11 Higher settings unleash the mighty roar of your Recto-Verb 25 and produce brighter, more pointed sounds that will cut through a mix. This can be great for sparkling clean sounds in Channel 1 and more aggressive crunch rhythm sounds in PUSHED, VINTAGE and MODERN.

  • Page 12: Gain, Treble

    STANDBY 25 W CH 2 FX LOOP RECTO-VERB 25 Your Recto-Verb 25 benefits from 40 years of high-performance amp design, and the FX Loop featured here is 10 WATTS a result of that experience and expertise. RECTO-VERB 25 HANDCRAFTED The FX Loop is wired in Series with the dry signal and as long as you are using processors of good quality,...

  • Page 13: Ext Reverb

    (COMBO) (USE WITH TWO 8OHM SPKRS) If you are using non-MESA cabinets with your Recto-Verb 25, it is very important to know your cabi- net’s impedance and make sure you are connecting speakers correctly and safely to the amp. Failure to connect speakers correctly can cause expensive damage to tubes, transformers and the amp in general.

  • Page 14: Factory Sample Settings (2 Channels)

    FACTORY SAMPLE SETTINGS Sample Settings #1: TITLE: Sweet Clean (CH1) / Soulful Solo (CH2) 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN TREBLE BASS PRESENCE MASTER POWER STANDBY FT SW VINTAGE 25 W CH 2 MODERN 10 WATTS Sample Settings #2 TITLE: Fat Clean (CH1)
  • Page 15 FACTORY SAMPLE SETTINGS Sample Settings #5: TITLE: Rock Clean (CH1) / Liquid Gain Solo (CH2) 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN TREBLE BASS PRESENCE MASTER POWER STANDBY FT SW VINTAGE 25 W CH 2 MODERN 10 WATTS Sample Settings #6 TITLE: Tight Crunch (CH1) / Blistering Lead (CH2) 25 WATTS...
  • Page 16 FACTORY SAMPLE SETTINGS Sample Settings #9: TITLE: Rock Rhythm (CH1) / Ridiculous Gain Lead (CH2) 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN TREBLE BASS PRESENCE MASTER POWER STANDBY FT SW VINTAGE 25 W CH 2 MODERN 10 WATTS Sample Settings #10: TITLE: Tight Gain Rhythm (CH1) / Lo Power Lead (CH2) 25 WATTS...
  • Page 17 PERSONAL SAMPLE SETTINGS FACTORY SAMPLE SETTINGS TITLE: 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN TREBLE BASS PRESENCE MASTER POWER STANDBY FT SW 25 W VINTAGE CH 2 MODERN 10 WATTS TITLE: 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN...
  • Page 18 PERSONAL SAMPLE SETTINGS FACTORY SAMPLE SETTINGS TITLE: 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN TREBLE BASS PRESENCE MASTER POWER STANDBY FT SW VINTAGE 25 W CH 2 MODERN 10 WATTS TITLE: 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN...
  • Page 19 PERSONAL SAMPLE SETTINGS FACTORY SAMPLE SETTINGS TITLE: 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN TREBLE BASS PRESENCE MASTER POWER STANDBY FT SW 25 W VINTAGE CH 2 MODERN 10 WATTS TITLE: 25 WATTS CLEAN CH 1 10 W PUSHED INPUT GAIN...

  • Page 20: Tube Noise & Microphonics

    TUBE NOISE & MICROPHONICS You may occasionally experience some form of tube noise or microphonics. Cer- tainly no cause for alarm, this quirky behavior comes with the territory and the Tone. Much like changing a light bulb, you don’t need a technician to cure these types of minor user serviceable annoyances and in fact, you’ll be amazed at how easy it is to cure tube problems...by simply swapping out a pre-amp or power tube! First may we suggest that you set the amplifier up on something so that you can get to the tubes comfortably without having to bend down.

  • Page 21: Diagnosing Pre-Amp Tube Problems

    DIAGNOSING PRE-AMP TUBE PROBLEMS Because your amplifier is an all tube design, it is quite possible that you will at some point experience minor pre-amp tube noise. Rest assured - this is no cause for alarm and you can take care of the problem yourself in a matter of minutes by simply swapping tubes.
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  • Page 24 SPEAKER IMPEDANCE MATCHING & HOOK-UP GUIDE: IMPEDANCE Wiring up speakers to provide the most effective load and making sure that all of them are in phase will help in creating the best sound possible. This is not too difficult, as long as you understand a few things about loading and how to connect your speakers to provide an optimal resistive load.
  • Page 25 SPEAKER IMPEDANCE MATCHING & HOOK-UP GUIDE: (Continued) PARALLEL: When wiring in parallel, the resistance of the speakers decreases. Two 8 ohm speakers wired in (hooked- up) Parallel results in a 4 ohm load. It’s easy to calculate the effect of a resistive load when all the speakers are all the same resistance.
  • Page 26 WIRING SCHEMES...Amplifier to Speaker Cabinets Partial back view of amplifier Partial back view of amplifier 8 OHM 4 OHM 4 OHM 8 OHM 4 OHM 4 OHM 8 Ohm Cabinet Partial back view of some Mesa amp 8 OHM 4 OHM 4 OHM 4 Ohm Cabinet 8 Ohm Cabinet...
  • Page 27 WIRING SCHEMES...Amplifier to Speaker Cabinets Partial back view of amplifier Partial back view of amplifier 4 OHM 4 OHM 8 OHM 8 OHM 4 OHM 4 OHM 16 Ohm Cabinet 8 Ohm Cabinet 8 Ohm Cabinet 8 Ohm Cabinet SAFE MISMATCH CORRECT MATCH Partial back view of amplifier Partial back view of amplifier...
  • Page 28 WIRING SCHEMES...Amplifier to Speaker Cabinets Partial back view of amplifier 16 Ohm 4 OHM 4 OHM 8 OHM SERIES BOX 8 Ohm 8 Ohm 8 Ohm Cabinet 8 Ohm Cabinet 8 Ohm Cabinet SAFE MISMATCH Partial back view of amp Partial back view of amplifier CORRECT MATCH 8 OHM...
  • Page 29 PAGE...
  • Page 30 NOTES...
  • Page 31 Thank you for trusting MESA/Boogie to be YOUR amplifier company. We wish you many years of toneful enjoyment from this handbuilt, all tube instrument.
  • Page 32 1317 Ross Street Petaluma CA 94954 Customer Service 6565 Fax 707 1503 11/19/13...

This manual is also suitable for:

Dual rectifier recto-verb 25

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