AMPEG Rocket Bass RB-108 - Guitar amplifier

Rocket Bass RB-108 - Guitar amplifier AMPEG - Free user manual and instructions

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Brand Ampeg
Model Rocket Bass RB-108
Product Type Bass guitar amplifier combo
Speaker Configuration 1 x 8"
Power Output 100W RMS
Impedance 8 ohms
Inputs 1 x 1/4" instrument input
Outputs 1 x 1/4" headphone output, 1 x 1/4" line out
Controls Volume, Bass, Treble, Limiter
Additional Features Built-in limiter, aux input, headphone output
Power Supply AC 120V, 60Hz (US model)
Dimensions (H x W x D) 13.5" x 16" x 10.5" (34.3 x 40.6 x 26.7 cm)
Weight 22 lbs (10 kg)
Cabinet Material Plywood with black Tolex covering
Colour Black
Warranty 2 years limited
Safety Certifications CE, UL
Cleaning Instructions Wipe with dry cloth; avoid solvents
Repairability Replaceable speaker, chassis accessible for service

Frequently Asked Questions - Rocket Bass RB-108 AMPEG

How do I connect my bass guitar to the RB-108?
Use a standard 1/4" instrument cable to connect your bass to the input jack on the front panel. Ensure the volume is turned down before plugging in.
Can I use headphones with this amplifier?
Yes, the RB-108 has a 1/4" headphone output on the front panel. Inserting headphones disables the internal speaker for silent practice.
How do I clean the amplifier?
Unplug the amp and wipe the exterior with a dry, lint-free cloth. Do not use any solvents or abrasive cleaners. For the speaker grille, gently vacuum with a brush attachment.
What is the limiter control for?
The limiter helps prevent distortion and protects the speaker by automatically reducing gain when the input signal exceeds a certain level. It is useful for achieving a cleaner tone at higher volumes.
How do I use the aux input?
Connect your external audio device (like a phone or MP3 player) to the aux input using a 3.5mm stereo cable. Adjust the volume on your device and the amp's volume control to blend with your bass.
What is the power consumption?
The RB-108 draws approximately 120W at full power. For exact specifications, refer to the power rating label on the back of the amplifier.
Can I use the amplifier with an extension cabinet?
The RB-108 does not have a dedicated speaker output for an extension cabinet. It is designed as a self-contained combo unit.
How do I replace the speaker?
If replacement is necessary, we recommend having it done by a qualified technician. The speaker is accessible by removing the back panel. Use only an Ampeg-approved 8" replacement speaker.
What are the dimensions and weight of the RB-108?
The amplifier measures approximately 13.5" H x 16" W x 10.5" D and weighs about 22 lbs (10 kg). Always use two people when moving it to avoid injury.
How do I reset the amplifier if it stops working?
First, check the power cord and wall outlet. If the amp still does not power on, ensure the fuse is intact (located on the back panel). If the fuse is blown, replace it with the same type and rating. If the problem persists, contact Ampeg support.

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Download the instructions for your Guitar amplifier in PDF format for free! Find your manual Rocket Bass RB-108 - AMPEG and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. Rocket Bass RB-108 by AMPEG.

USER MANUAL Rocket Bass RB-108 AMPEG

RB-108, RB-110, RB-112, RB-115, and RB-210 Bass Guitar Combo Amplifiers

ROCKET BASS

Five black-and-white audio/video equipment units with grid patterns, arranged in a row (no visible text or symbols)

Owner's Manual

TABLE OF CONTENTS

What's in the Box 2

Introduction....2

Rocket Bass Series Features 3

Top Panel Features 4

Rear Panel Features 5

RB-108 Technical Specifications 6

RB-110 Technical Specifications 7

RB-112 Technical Specifications 8

RB-115 Technical Specifications 9

RB-210 Technical Specifications 10

Warranty and Support.... 11

What's in the Box

RB-108, RB-110, RB-112, RB-115, or RB-210 Amplifier, Power Cable, Quick Start Guide.

Introduction

Designed from the ground up, with Ampeg's industry standard tone and styling in mind, the all-new Rocket Bass combos feature the legacy Ampeg preamp and tone stack circuits with the widest range of classic Ampeg tones any Ampeg combo has ever offered. The new SGT™ (Super Grit Technology) overdrive circuit gives you the warmth and grit of a monster SVT® stack, packed into a lightweight combo that you can easily carry to any practice or performance.

Iconic black diamond vinyl, reminiscent of the most recorded bass amp of all time, the Ampeg B15, wraps the most lightweight cabinets Ampeg has ever built, without sacrificing ground shaking lows and classic Ampeg tone. Integrated DIs, effect loops, and aux in/phones out circuits provide the ultimate tools for any rehearsal or gigging situation.

Like all Ampeg products, your Rocket Bass combo is designed by musicians and built using only the best of components. Each combo is tested to confirm that it meets our specifications, and we believe that each amp is the best that it can be.

In order to get the most out of your new combo, please fully read this Owner's Manual, as well as the Important Safety Instructions included with your Rocket Bass series amp, before you begin playing.

Best of luck in all of your musical endeavors!

- And THANK YOU for choosing Ampeg! -

Rocket Bass Series Features

- Superior Tone

  • Legacy Ampeg preamp and tonestack circuits
  • New SGT overdrive circuit
  • Perfectly-matched Eminence® custom speakers*

• Pro-Grade Flexibility

  • Super lightweight construction
  • Integrated DIs, effects loops, extension speaker outs*
  • Aux in / headphone outs

- Iconic Styling

  • Ampeg's iconic black diamond vinyl
  • Impact-resistant metal corners
  • Rugged, braced enclosures

*Some features available on select models only.

Top Panel Features

Ampeq -15dB 0dB 3 4 5 6 SGT GRIT LEVEL SUPER GRIT TECHNOLOGY™ VOLUME ULTRA HI ULTRA LO BASS MIDRANGE TREBLE 1 2 7 9 10 11 128

  1. -15 dB INPUT: The attenuation of this 1/4" input is suited for use with basses that have active electronics or high-output pickups. Connect here using a shielded instrument cable.

  2. 0 dB INPUT: The signal output from a passive instrument may be connected to this 1/4" input. Connect here using a shielded instrument cable.

  3. SGT LED: This LED illuminates amber when the SGT overdrive circuit is on.

  4. SGT ON/OFF: Engage this switch to activate the SGT overdrive circuit. This allows for varying amounts of tube-like grit and distortion.

  5. GRIT: Use to adjust the amount of SGT "grit." Turn the knob clockwise for a more overdriven sound (RB-110, RB-112, RB-115, RB-210).

  6. LEVEL: Use to control the overall level of the SGT overdrive circuit. Turn the knob clockwise to increase the SGT level. (RB-110, RB-112, RB-115, RB-210).

  7. VOLUME: Use to control the amplifier's overall output level. It affects the preamp level fed to the Speaker and Phones outputs. Use it wisely and turn down when making connections, wearing headphones, or when trying something new. This control does not affect any signal coming into to the Aux Input (14).

  8. ULTRA HI: This switch, when engaged, enhances the amount of high frequency output with 5 dB boost at 8 kHz (RB-112, RB-115, RB-210).

  9. ULTRA LO: This switch, when engaged, enhances the amount of low-end output with a 1 dB boost at 40 Hz, and a 10 dB cut at 500 Hz (RB-112, RB-115, RB-210).

  10. BASS: Use to adjust the low frequency level of the amplifier. The low frequency output is flat at the center, "0" knob position. Rotate the control counter clockwise from 0 to reduce the bass frequencies—or clockwise from 0 to increase the bass frequencies. See the following pages for Technical Specifications.

  11. MIDRANGE: Use to adjust the midrange frequency level of the amplifier. The midrange frequency level is flat at the center "0" knob position. Rotate the control counter clockwise for a "contoured" sound (more distant, less midrange output), or clockwise for a sound that really cuts through (increased midrange). See the following pages for Technical Specifications.

  12. TREBLE: Use to adjust the high frequency level of the amplifier. The high frequency level is flat at the center "0" knob position. Rotate the control counter clockwise from 0 to reduce the treble frequencies—or clockwise from 0 to increase the treble frequencies. See the following pages for Technical Specifications.

Top Panel Features

13 PHONES AUX IV POWER ROCKET BASS 18-210 18-175 18-172 14 15 16

  1. PHONES: Use this 1/8" TRS stereo output to connect your headphones. The output here is a mix of the line level signals reaching the amplifier, as well as any incoming audio from the Aux Input jack (14). Speaker output is muted when Phones are connected.
  2. AUX INPUT: The analog audio output from a line level source, such as an MP3 player or other music source, can be connected to this 1/8" input.
  3. ON LED: This LED illuminates blue when the amplifier's power is on.
  4. POWER SWITCH: Press the top of this switch to turn on the overall system power, and press the bottom of the switch to turn it off.

Rear Panel Features

HORN OFF ON EXT SPEAKER CLASS 2 WIRING SGT TO SWITCH SGT ON/OFF EFFECTS LOOP SEND RETURN BALANCED DI OUT GROUND LIFT 17 18 19 20 21 22 23

  1. Horn On/Off Switch: Turns the high frequency horn on/off (RB-210 only).
  2. EXT SPEAKER OUTPUT: Optionally, use this 1/4" TS output jack to connect to an 8 Ωextension speaker cabinet. The internal speaker remains active when an extension speaker is connected.

Use a non-shielded speaker cable with 1/4" TS ends to make the connections. Do not use shielded instrument cables as they may overheat.

  1. SGT SWITCH: Optionally, connect a 1/4" TS footswitch to this jack for remote on/off control of the SGT circuit (RB-112, RB-115, RB-210).
    NOTE: A footswitch may be purchased at your local Ampeg Dealer, or directly from shop.ampeg.com.
  2. EFFECTS LOOP SEND: Use a TS (unbalanced) cable from this 1/4" output to send a line level signal to an external effects processor. The output here is affected by all controls. Use the Effects Loop Return jack to feed the returned processed signals back into the power amplifier—see item 21 (RB-112, RB-115, RB-210).
  3. EFFECTS LOOP RETURN: Use a TS (unbalanced) cable into this 1/4" input to return the processed line level output of an external effects processor. The processor could be fed by signals from the Effects Loop Send—see item 20 (RB-112, RB-115, RB-210).
  4. GROUND / LIFT SWITCH: Toggle to Lift to disable the ground connection at the Balanced DI Output jack if grounding hum or noise is present – see item 23 (RB-110, RB-112, RB-115, RB-210).
  5. BALANCED DI OUT: Connect this post-EQ, post-SGT, mic level, balanced XLR output to the balanced input of an external mixer or recorder. In this configuration, you do not need to mic the speaker cabinet in order to add it to the main mix or to record (RB-110, RB-112, RB-115, RB-210)

RB-108 Technical Specifications

RB-108
Output Power Rating30 Watts RMS @ 4 Ω 10% THD+N
Signal-to-Noise Ratio80 dB (20 Hz–20 kHz unweighted)
Maximum Gain @ 1 kHzInput: 45 dB
Input ImpedanceNormal Input: 500k Ohms-15dB Pad Input: 75k Ohms
Tone ControlsBass: +13/-21 dB @ 40 HzMid: +16/-10 dB @ 500 HzTreble: +12/-16 dB @ 4 kHz
Speaker Specs1 x 8" speaker, 4 Ω
Maximum Operating Range40°C ambient temperature, 93% relative humidity, up to 2000 m altitude
Power Requirements100–240V ~ 50-60 Hz, 45W Max
Size (H x W x D)17 x 16.2 x 12 inches433 x 411 x 306 mm
Weight (Approximate)23 lbs10.45 kg

All specifications subject to change.

graph TD A["INPUT -15dB"] --> B["15 dB PAD"] C["0dB"] --> B B --> D["FET PREAMP"] D --> E["SGT"] E --> F["SGT ON/OFF"] F --> G["VOLUME"] G --> H["TONE CONTROL CIRCUITRY"] H --> I["BASS MIDRANGE TREBLE"] I --> J["8" WOOFER 4 OHMS"] K["AUX INPUTS STEREO 1/8""] --> L["Σ"] L --> M["MUTE"] M --…

RB-110 Technical Specifications

RB-110
Output Power Rating50 Watts RMS @ 4 Ω 10% THD+N
Signal-to-Noise Ratio84 dB (20 Hz-20 kHz unweighted)
Maximum Gain @ 1 kHzInput: 48.5 dB
Input ImpedanceNormal Input: 1Meg Ohms-15dB Pad Input: 75k Ohms
Tone ControlsBass: +14/-20 dB @ 40 HzMid: +15/-10 dB @ 500 HzTreble: +12/-16 dB @ 4 kHz
Speaker Specs1 x 10" speaker, 4 Ω
Maximum Operating Range40°C ambient temperature, 93% relative humidity, up to 2000 m altitude
Power Requirements100-240V ~ 50-60 Hz, 70W Max
Size (H x W x D)19 x 16.2 x 13 inches481 x 411 x 330 mm
Weight (Approximate)22.5 lbs10.20 kg

All specifications subject to change.

graph TD A["INPUT -15dB"] --> B["15 dB PAD"] C["0dB"] --> B B --> D["FET PREAMP"] D --> E["SGT"] E --> F["SGT ON/OFF"] F --> G["TONE CONTROL CIRCUITRY"] G --> H["TONE CONTROL CIRCUITRY"] H --> I["MIDRANGE"] H --> J["BASS"] H --> K["TREBLE"] I --> L["DI OUT"] J --> L K --> L L --> M["POWER AMPLIFIER…

RB-112 Technical Specifications

RB-112
Output Power Rating100 Watts RMS @ 4 Ω 10% THD+N
Signal-to-Noise Ratio80 dB (20 Hz–20 kHz unweighted)
Maximum Gain @ 1 kHzInput: 48.5 dBAux Input: 33 dBEffects Return: 29 dB
Input ImpedanceNormal Input: 1Meg Ohms-15dB Pad Input: 75k Ohms
Tone ControlsBass: +14/-14 dB @ 40 HzMid: +5/-11 dB @ 500 HzTreble: +15/-15 dB @ 4 kHz
Speaker Specs1 x 12" custom Eminence speaker, 4 Ω
Maximum Operating Range40°C ambient temperature, 93% relative humidity, up to 2000 m altitude
Power Requirements100–240V AC ~ 50-60 Hz, 150W Max
Size (H x W x D)21.4 x 18.2 x 14.2 inches543 x 462 x 360 mm
Weight (Approximate)25.9 lbs11.75 kg

All specifications subject to change.

graph TD A["INPUT -15dB"] --> B["15 dB PAD"] C["0dB"] --> B B --> D["FET PREAMP"] D --> E["SGT"] E --> F["SGT ON/OFF"] F --> G["TONE CONTROL CIRCUITRY"] G --> H["MIDRANGE"] H --> I["TONE CONTROL CIRCUITRY"] I --> J["BASS"] I --> K["TREBLE"] J --> L["SEND EFFECTS LOOP RETURN"] K --> L M["FOOT SWITCH"…

RB-115 Technical Specifications

RB-115
Output Power Rating200 Watts RMS @ 4 Ω3% THD+N (with external speaker)100 Watts RMS @ 8 Ω10% THD+N (with external speaker)
Signal-to-Noise Ratio90 dB (20 Hz–20 kHz unweighted)
Maximum Gain @ 1 kHzInput: 60 dBAux Input: 39 dBEffects Return: 32 dB
Input ImpedanceNormal Input: 1Meg Ohms-15dB Pad Input: 75k Ohms
Tone ControlsBass: +14/–14 dB @ 40 HzMid: +5/–11 dB @ 500 HzTreble: +16/–15 dB @ 4 kHz
Speaker Specs1 x 15" custom Eminence speaker, 8 Ω
Maximum Operating Range40°C ambient temperature, 93% relative humidity, up to 2000 m altitude
Power Requirements100–240V ~ 50-60 Hz, 280W Max
Size (H x W x D)22.4 x 20.2 x 13.94 inches570 x 513 x 354 mm
Weight (Approximate)33.4 lbs15.45 kg

All specifications subject to change.

graph TD A["INPUT -15dB"] --> B["15 dB PAD"] C["0dB"] --> B B --> D["SGT"] D --> E["SGT ON/OFF"] E --> F["TONE CONTROL CIRCUITRY"] F --> G["MIDRANGE"] G --> H["TONE CONTROL CIRCUITRY"] H --> I["BASS"] I --> J["TREBLE"] J --> K["DI OUT"] L["FOOTSWITCH"] --> M["AUX INPUTS STEREO 1/8""] --> N["Σ"]…

RB-210 Technical Specifications

RB-210
Output Power Rating500 Watts RMS @ 4 Ω 3% THD+N (with external speaker)250 Watts RMS @ 8 Ω10% THD+N (with external speaker)
Signal-to-Noise Ratio91 dB (20 Hz–20 kHz unweighted)
Maximum Gain @ 1 kHzInput: 73 dBAux Input: 52 dBEffects Return: 36 dB
Input ImpedanceNormal Input: 1Meg Ohms-15dB Pad Input: 75k Ohms
Tone ControlsBass: +14/–14 dB @ 40 HzMid: +5/–11 dB @ 500 HzTreble: +16/–15 dB @ 4 kHz
Speaker Specs2 x 10" custom Eminence speakers, 16 Ω each (8 Ω in parallel)1 HF compression driver
Maximum Operating Range40°C ambient temperature, 93% relative humidity, up to 2000 m altitude
Power Requirements100–240V ~ 50-60 Hz, 600W Max
Size (H x W x D)25.75 in x 20.2 in x 13.94 inches654 x 513 x 354 mm
Weight (Approximate)38 lbs17.7 kg

All specifications subject to change.

graph TD A["INPUT -15dB"] --> B["15 dB PAD"] C["0dB"] --> B B --> D["SGT"] D --> E["SGT ON/OFF"] E --> F["TONE CONTROL CIRCUITRY"] F --> G["TONE CONTROL CIRCUITRY"] G --> H["TONE CONTROL CIRCUITRY"] H --> I["SEND EFFECTS LOOP RETURN"] J["FOOTSWITCH"] --> K["NOT"] K --> L["FET PREAMP"] K --> M["GRIT"…

Ampeq®

Warranty and Support

Visit WWW.AMPEG.COM to...

(1) ...identify WARRANTY coverage provided in your local market. Please keep your sales receipt in a safe place.
(2) ...REGISTER your product.
(3) ...CONTACT Technical Support, or call 818-575-3600.

www.ampeg.com

Yamaha Guitar Group, Inc.

26580 Agoura Road, Calabasas, CA 91302-1921 USA

Rev. A

AMPEG Rocket Bass RB-108 - Warranty and Support - 1

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Product information

Brand : AMPEG

Model : Rocket Bass RB-108

Category : Guitar amplifier