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Roar Quad 15 User Manual

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June 2020
Contents:
3. Mains power In & Out
User manual
7. Control & Programming with MIDI
11. Specifications & Block diagram Setup
pickup switching
Examples
1

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Summary of Contents for Roar Quad 15

  • Page 1: Table Of Contents

    June 2020 User manual Contents: 1. Safety instructions 7. Control & Programming with MIDI 2. Introduction 8. Setup Examples 3. Mains power In & Out 9. Programmable/MIDI – controlled pickup switching 4. Connections – Audio & MIDI 10. Tube replacement & bias adjustment 5.

  • Page 2: Safety Instructions

    1. This apparatus (referred to as Quad15) must be connected to earth via the mains inlet. 2. When powering other class I apparatus via any of the three mains outlet sockets of the Quad 15, always use IEC mains female-male chords with earth conductor.

  • Page 3: Introduction

    2. I NTRODUCTION The Quad15 is a an all tube 4 channel guitar amplifier with programmable effect loops, outputting 15 watts to a speaker cabinet (not included). The output power to the speaker can be attenuated by the built-in power attenuator to retain the desired amount of power tube overdrive: ”The Sound of Loud at All Levels”...

  • Page 4: Connections - Audio & Midi

    4. C – A & MIDI ONNECTIONS UDIO This chapter describes all audio & MIDI connections to the Quad15. Use screened jack-cables of good quality for audio connections except for the speaker output, where a dedicated speaker cable is recommended. 4.1 I NPUT FRONT...
  • Page 5 4.5 P GAIN EFFECT LOOP The Quad 15 is equipped with a classic effect loop between the preamp and the power amp. With simple controls, you can program whether the effect loop should be parallel, serial or de-activated: Return on The effect signal from the “Return”...
  • Page 6 Connect speaker cabinets to the speaker jacks on the rear panel of the Quad15 using dedicated speaker cables. The total impedance must be minimum 8 ohm and the lower speaker jack must be used first. It is completely safe to use the Quad 15 as a preamp only - with no speakers connected! Speaker(s) connected...

  • Page 7: Preamp - Channel Description

    HANNEL DESCRIPTION The preamp of the Quad 15 consists of four channels with each 3 modes for a variety of clean, compression, overdrive and distortion characteristics. This section describes the individual controls of the channels and how they sound. Visit roaramps.com...
  • Page 8 5.2 O VERDRIVE C HANNEL With a more classic overdrive character, this channel is designed to cover a wide range of overdrive/distortion sounds from compressed cleans to classic overdriven blues to medium rock distortion and even metal sounds for rhythm work. Three switchable gain range settings make it easy to adjust the desired amount of gain with the gain knob.
  • Page 9 5.3 R HYTHM & EAD C HANNELS The Rhythm and Lead channels are Hi-gain channels that also master the lower gain territory. Built around the 5751 tube, they share the same EQ section, described on page XXXXXX, while both channels have their own “Mode” switch with three different preamp characters for a variety of OD/DIST sounds Four tube stages in the preamp result in plenty of gain for Leads, rock and metal guitars, even for lower output pickups.
  • Page 10 EAD C HANNEL With slightly more gain and mid emphasis, the Lead channel is dedicated to solos and single notes with the pick attack slightly dampened compared to the Rhythm channel. Gain: Classic gain control At lower gain settings, this channel still provides good control and clarity for chord work. As you turn up the gain, single notes will be more bold with plenty of sustain.
  • Page 11 5.4 EQ – O & R VERDRIVE HYTHM Bass resonance: Adds body and fat dynamic bass The preamp of the Quad15 is designed to produce strong mids and highs to retain clarity and chord definition. The bass is then enhanced in the power amp by the Bass resonance control.

  • Page 12: Power Attenuator

    TTENUATOR The built-in Power Attenuator of the Quad 15 lets you control the desired listening level while retaining a natural “speaker cabinet” response. A total of 12 steps let you go all the way down to bedroom level with as much power amp overdrive as you prefer.
  • Page 13 Connect a MIDI-foot controller (like the MIDI MOOSE shown below, not included) to the “MIDI – IN” connector on the rear panel of the Quad 15 with a standard MIDI-cable. Your MIDI-foot controller can be phantom powered by the Quad 15, see page XXX.

  • Page 14: Setup Examples

    XAMPLES The Quad 15 is designed for any setup imaginable, from the most basic to the most advanced stereo setup. Plug in your guitar, your speaker cabinet and a MIDI-board and you're ready to rock! Or get some inspiration from the following examples.
  • Page 15 8.2 H – H 12” OWER ETUP EAD WITH CABINETS The Quad15 delivers 15W of tube power to the top cabinet. An additional Class D power amp is replicating the sound of the Quad15 – delivering hundreds of watts to additional speaker cabinets. •...
  • Page 16 8.3 H – R 12” OWER ETUP ACKCOMBO WITH CABINET A rackcombo holding the Quad15, additional power amp, rack effects and effect pedals can be placed on top of a 3 by 12” cabinet for maximum flexibility and convenience. 8.4 T AS A PREAMP ONLY Using the Quad15 as a preamp only, will still maintain its 6V6 driven power amp character thanks to the internal speaker emulator load.
  • Page 17 8.5 S – TEREO ETUP WITH EFFECTS AND MIDI FOOTCONTROLLER The ultimate setup for the demanding lead guitarist. Three speakers retain clarity for stereo sounds and provide the sound engineer with the dry signal for better control behind the mixing desk. •...
  • Page 18 8.6 S – R TUDIO SETUP AMPING • Record the raw guitar pickup signal using the “Guitar out” output of the Quad15. • Connect an output from your recording device to “Input rear” of the Quad15 for Re-amping. Many sound engineers prefer the option of re-amping guitar tracks in the mixing process to fine tune the amp settings.

  • Page 19: Programmable/Midi - Controlled

    The simplest way to modify your guitar for programmable pickup switching with the Quad 15 is shown above. A stereo jack cable is required along with two volume pots or one double pot. To be able to use your guitar with standard mono input cables for other amplifiers, there are several options to incorporate a pickup switch in your guitar as shown in the following examples.
  • Page 20 Connect your guitar to the Quad 15 with a stereo jack cable. • Pull the “Neck volume control”. • Select between “Front” and “Rear” pickup with the Input selector on the Quad 15. (Pickup switch on your guitar is now de-activated) • Separate volume controls for Bridge and Neck pickups.
  • Page 21 Connect your guitar to the Quad 15 with a stereo jack cable. • Pull the “Tone control”. • Set the pickup switch to “Neck” position. • Select between “Front” and “Rear” pickup with the “Input” selector on the Quad 15. • Master volume control. • Tone control only affects Neck pickup.
  • Page 22 Select “Rear” on the Quad 15 to use the bridge pickup with the “Lower Volume control”. No tone control, pickup switch deactivated) • Select “Front” input on the Quad 15 to use the guitar with the 5-way pickup switch, one master volume control (upper) and a master tone control (mid); the way you're used to.

  • Page 23: Tube Replacement & Bias Adjustment

    10. T & B UBE REPLACEMENT IAS ADJUSTMENT Warning! Service and replacement of tubes and fuses shall be performed by qualified service personnel only! The rear panel of the Quad15 is equipped with a small cover that can be removed to replace the two 6V6 power tubes. A stereo jack socket is placed between the tube sockets for easy access to measure bias current for the power tubes, which is done by adjusting the trimmer placed above the bias jack socket.
  • Page 24 10.2 P REAMP TUBE REPLACEMENT The Quad15 is equipped with the following preamp tubes: Preamp tube Type Placement Channels ECC83 Preamp board near input jack All channels ECC83 Preamp board mid position Overdrive, Rhythm & Lead 5751 Preamp board Rhythm & Lead channel ECC81 Rear chamber Effect loop...
  • Page 25 11. S PECIFICATIONS Parameter Conditions/despription Value Maximum power ~ 20 W power to speaker (clipped waveform) ~ 55 W consumption Idle power consumption No power to speaker ~ 45 W Operating temperature No ventilation holes blocked - 10 C to 50 C (Ambient temperature) Thermostat disconnect (Only occurs during faults, blocked ventilation holes or...
  • Page 27 Go to our website to get more information about the Quad 15 and future products from ROAR amplification. 1. Soundclips Discover the many sounds hidden in the different channels of the Quad 15 2. Amp talk For tech interested guitar players, the philosophy behind the design of the Quad 15, secrets of vacuum tubes and more 3.