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Table of Contents
Summary of Contents for Echolette MK I
- Page 1 Echolette MK I Tube amp head user manual...
- Page 2 Musikhaus Thomann Thomann GmbH Hans-Thomann-Straße 1 96138 Burgebrach Germany Telephone: +49 (0) 9546 9223-0 E-mail: info@thomann.de Internet: www.thomann.de 07.06.2016, ID: 344876...
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Page 3: Table Of Contents
Safety instructions..........................10 Features............................... 14 Notes on use............................... 15 Connections and controls........................16 Maintenance.............................. 23 6.1 Replacing the main fuse........................ 24 6.2 Replacing tubes..........................25 6.3 Adjusting the BIAS........................... 29 Technical specifications........................32 Plug and connection assignment....................34 Echolette MK I... - Page 4 Table of contents Protecting the environment......................36 Tube amp head...
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Page 5: General Information
If you sell the unit please make sure that the buyer also receives this manual. Our products are subject to a process of continuous development. Thus, they are subject to change. Echolette MK I... -
Page 6: Further Information
General information 1.1 Further information On our website (www.thomann.de) you will find lots of further information and details on the following points: Download This manual is also available as PDF file for you to download. Use the search function in the electronic version to find the topics of Keyword search interest for you quickly. -
Page 7: Notational Conventions
The individual steps of an instruction are numbered consecutively. The result of a step is indented and highlighted by an arrow. Example: Switch on the device. Press [Auto]. ð Automatic operation is started. Switch off the device. Echolette MK I... -
Page 8: Symbols And Signal Words
General information Cross-references References to other locations in this manual are identified by an arrow and the specified page number. In the electronic version of the manual, you can click the cross-reference to jump to the specified location. Example: See Ä... - Page 9 General information Warning signs Type of danger Warning – high-voltage. Warning – danger zone. Echolette MK I...
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Page 10: Safety Instructions
Safety instructions Safety instructions Intended use This device is intended to be used for amplification and playback of signals from musical instruments with electromagnetic pickups. Any other use or use under other operating condi‐ tions is considered to be improper and may result in personal injury or property damage. No liability will be assumed for damages resulting from improper use. - Page 11 Always use proper ready-made insulated mains cabling (power cord) with a pro‐ tective contact plug. Do not modify the mains cable or the plug. Failure to do so could result in electric shock/death or fire. If in doubt, seek advice from a regis‐ tered electrician. Echolette MK I...
- Page 12 Safety instructions NOTICE! Risk of fire Do not cover the device nor any ventilation slots. Do not place the device near any direct heat source. Keep the device away from naked flames. NOTICE! Operating conditions This device has been designed for indoor use only. To prevent damage, never expose the device to any liquid or moisture.
- Page 13 Failure to do so could result in damage to the device and possibly injure the user. Unplug the device before electrical storms occur and when it is unused for long periods of time to reduce the risk of electric shock or fire. Echolette MK I...
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Page 14: Features
Features Features Full tube guitar amp head Drive channel (D-channel) Clean channel (F-channel) Serial FX loop with send / return level Two output stage tubes, five pre-stage tubes Class AB push-pull output stage Tube amp head... -
Page 15: Notes On Use
BIAS is described in Ä Chapter 6 ‘Mainte‐ nance’ on page 23 more detail in . All repairs and servicing of electrical components must only be performed by authorised per‐ sonnel. Echolette MK I... -
Page 16: Connections And Controls
Connections and controls Connections and controls Front panel Tube amp head... - Page 17 Drive channel (also known as the lead or dirty channel) for “clean” sound, warm crunch sound and rock sounds. The sound generated also depends on the input signal, i.e. on the guitar used and the sound settings (in the case of active instruments). Echolette MK I...
- Page 18 Connections and controls [Gain] Gain signal for the drive channel. Amplifies the input signal and generates a slightly compressed sound. [Treble], [Middle], [Bass] Control to adjust the settings of the 3-band equaliser in the drive channel. [Volume] Control to adjust the volume of the drive channel. At high volume, the output stage tubes start to distort the sound. From a certain setting, the volume is no longer increased but instead the distortion becomes more intense.
- Page 19 Before switching off the amp head, always switch the high voltage off first using the [Standby] switch! 7 [Power] Main switch to turn the device on/off. 8 Power indicator. This LED glows as soon as voltage is applied to the device. Echolette MK I...
- Page 20 Connections and controls Rear panel Tube amp head...
- Page 21 Effect section. The two connection sockets (6.35 mm jack sockets) can be used to interloop as many effects as you want between the pre-stage and output stage. If you do not connect any effect device, set the two Level controllers to the 3 o’clock position. Echolette MK I...
- Page 22 Connections and controls [Return | Level] Rotary controller, controls the signal strength from the effect device to the amp and can also be used as a master volume controller. [Return] Input socket for connecting an effect device (or the last effect in an effects chain) or an external pre- amp.
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Page 23: Maintenance
Disconnect the device completely from the power supply before opening or removing any covers. Only reconnect the device once the covers have been fully reattached and are firmly secured in place. Echolette MK I... -
Page 24: Replacing The Main Fuse
Maintenance NOTICE! Possible damage from dirt or fingerprints. Dirt or fingerprints can destroy the glass pistons in the tubes. Never hold the glass pistons directly with your fingers. Use clean gloves or a clean cloth made from lint-free material. 6.1 Replacing the main fuse The fuse holder for the main fuse is located below the IEC chassis plug. -
Page 25: Replacing Tubes
- are pre-stage tubes of type ECC81, ECC82, 12AY7, 12AU7, 12AT7. With pre-stage tube V1 especially, high quality must be ensured to avoid unwanted noise and microphonics. The illustration below shows the position of tubes V1 … V7 on the amp. Echolette MK I... - Page 26 Maintenance Tube amp head...
- Page 27 Push the pins of the new tubes with gentle, even pressure and slight back and forth movements into the base and place the metal caps on the tubes. Echolette MK I...
- Page 28 Maintenance Replacing output stage tubes The replacement of V6 and V7 output stage tubes requires specific electrical engineering expertise and must only be carried out by appropriately qualified personnel. Inside the amp, a voltage of up to 500 V may be present, even if the device is switched off! Output stage tubes of type KT66 and other common output stage tubes, such as EL34, 6L6 or 5881, are permitted.
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Page 29: Adjusting The Bias
Maintenance 6.3 Adjusting the BIAS Echolette MK I... - Page 30 Maintenance 13 Resistors R53 and R54. 14 Fuse F1. 15 Potentiometer for setting the BIAS. Make sure that the device is turned off, disconnected from the mains and completely cooled down. The minimum wait time after disconnecting the voltage supply is ten minutes.
- Page 31 After the minimum wait time (ten minutes after disconnecting the voltage supply), place the amp back in the housing and fit the cover on the reverse. Echolette MK I...
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Page 32: Technical Specifications
Technical specifications Technical specifications Output power of AB push-pull output stage 35 W Output stage tubes 2 × KT66 (standard), EL34 or 6L6 (optional) Pre-stage tubes 5 × ECC83 (standard), 12AX7, 7025, ECC81, ECC82, 12AY7, 12AU7, 12AT7 (optional) Loudspeaker connection options 1 ×... - Page 33 Technical specifications Dimensions (W × D × H) 570 mm × 250 mm × 260 mm Weight 8.3 kg Echolette MK I...
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Page 34: Plug And Connection Assignment
Plug and connection assignment Plug and connection assignment Introduction This chapter will help you select the right cables and plugs to connect your valuable equip‐ ment in such a way that a perfect sound experience is ensured. Please note these advices, because especially in ‘Sound & Light’ caution is indicated: Even if a plug fits into the socket, an incorrect connection may result in a destroyed power amp, a short circuit or ‘just’... - Page 35 The result is a pure signal without any noise inter‐ ference. 1/4" TS phone plug (mono, unbalanced) Signal Ground, shielding 1/4" TRS phone plug (mono, bal‐ anced) Signal (in phase, +) Signal (out of phase, –) Ground Echolette MK I...
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Page 36: Protecting The Environment
Protecting the environment Protecting the environment Disposal of the packaging mate‐ rial For the transport and protective packaging, environmentally friendly materials have been chosen that can be supplied to normal recycling. Ensure that plastic bags, packaging, etc. are properly disposed of. Do not just dispose of these materials with your normal household waste, but make sure that they are collected for recycling. - Page 37 Notes Echolette MK I...
- Page 38 Notes Tube amp head...
- Page 40 Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de...
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