Instruction/ maintenance manual of the product 284 Lexicon
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User Guide All Tube Class "A" Stereo Recording Amplifier and Direct Sour ce.
Lexicon Inc. • 3 Oak Park • Bedford MA 01730-1441 USA • Tel: 781-280-0300 • Fax 781-280-0490 • www.lexicon.com Lexicon Part # 070-12856 Copyright 1998 Lexicon Inc., All Rights Reserved. Unpa cking and Inspection After unpacking the Signatu re 284, save a ll packing materials in case you ever need to ship the unit.
Introduction ..................................................................................... 1 Front Panel Controls ......... ............................................................... 2 Power and Standby ................. .................
Limited Warranty Lexicon Incorporated offers the following warranty on the Signature 284 Amplifier. Duration of the Warranty This warranty will remain in effect for one (1) year from the date of original purchase. Tubes provided with the original unit are warranted to be free from defects for six (6) months from the date of original purchase.
Signat ure 284 Us er Guide 1 Introduction You know the m oment — the one where the volume is cranke d to the limit and the g uitar player looks a s tho ugh his guita r might be p laying h im — as though they're locked in some ritual combat in another zone entirely.
Lexicon 2 Power and Standby As w ith any tube amp, you’ll get the longest life from the tubes by u sing the P ower and Standby controls properly. The Standby switch shou ld be in the stan dby position be fore tur ning the amp on with the Power switch.
Signat ure 284 Us er Guide 3 Front Panel Controls Getting the Feel of th e Signature 284 Like any classic t ube a mp, distortion is very d ynamic in t he Sig nature 284 — The amount of distor tion is controlled b y your pl aying style a nd dynamics.
Lexicon 4 The left and righ t volume contr ols are maste r input level con trols fo r the Class “A” stereo power a mp. These controls determine loudn ess, but, more imp or- tantly, they control th e quality of the power amp’s contribution to the overall tone .
Signat ure 284 Us er Guide 5 Getting the Tone Yo u Want The sonic signat ures of many different guitar sounds ar e based on power amp behavi or as much as preamp gain and tone settings.
Lexicon 6 You can drive a ny combination of 8 ohm and 4 oh m guita r cab inets fro m these connectors. Be sur e that the ohm selector switch match es the rat ing for the connected cab inet. (You can, fo r example, connect an 8 Ohm cabin et to the l eft and a 4 Ohm cabinet to the right.
Signat ure 284 Us er Guide 7 The E ffects Loo p is i nstrum ent l evel (-20dB instru ment level) to allow use of stomp boxes or studio gear in the loop.
Lexicon 8 Stere o L oop Exa mples 3. Connect the mono (or right) output of the effect to th e right r eturn of the Signature 284. 4. Set the gu itar, p reamp a nd the Left Volume co ntrol o f the Signature 284 for your loudest playing. 5. Tur n up the effect inp ut control to optimum level.
Signat ure 284 Us er Guide 9 Mono Loop Exam ple Rear Panel Connections Inserting Two Mono Effects processor s in parallel in t he Signature 284 E ffec ts Loop Dual Mono Effects Inserting a Mono E ffect in t he Signature 284 E ffec ts Loop The Left channel has Effect 1 only; the Right channel has Effect 2 only.
Lexicon 10 In a mono si tuation (live or laying down a mono track), try run ning the effects through only t he r ight si de (100% wet). T his allows yo u to ha ve two guitar feeds.
Signat ure 284 Us er Guide 11 The S ignatu re 284 is diff erent from most amps in that it is optimized for recording vs. on-stage performance. Its low output power amp makes it possible to achieve g reat ton e at low volume levels.
Lexicon 12 Low volum e live setup High volume live direct High volume live slave Applications.
Signat ure 284 Us er Guide 13 Example Settings Applications Here are some settings for you to try. Guitar and pickup types are shown i f they contribute significantly to the sound.
Lexicon 14 Applications 6 Texas Blues Stratocaster/ Neck 7 80's Marshall Humbucker (Bridge) 8 High Gain Humbucker (Neck and Bridge) 9 Singing Lead Stratocaster/Neck 10 One Size Fits All Any picku.
Signat ure 284 Us er Guide 15 Power Amp for Tube Warmth Using the Sign ature 28 4 with non -Guitar Sour ces Applications Although desi gned pri marily for guitar, the Si gnatu re 284 can be quite use ful for processing oth er sources.
Lexicon 16 Applications Looking for a more radical effect than can be obtained with a tub e mic preamp? Depending on how drast ic you want to be, run the vocal through either the Guitar input (easy on the gain!) or the effects return. Here a gain, the Signat ure 284 ha s some thing to offe r as an alter native way to process a source.
Signat ure 284 Us er Guide 17 Precautions and Maintenance General Maintenance The Signature 28 4 requi res no m aintenance. It is, howe ver, good electrical practice to clean all connecto rs once a year. An occasional dusting of the exterior surface with a soft cloth helps maintain the unit's finish.
Lexicon 18 Preamp Tubes: 3 x 12AX7 Gain: pull for boost Tone Controls: Bass, Midrange, Treble, Presence Effects Loop Stereo send: 2 x 1/4” unbalanced, -20dB Stereo return: 2 x 1/4” unbalanced.
Lexicon Part # 070-12856 Lexicon Inc. 3 Oak Par k Bedford MA 01730-1441 USA Telephone 781-280-0300 Fax 781-280-0490 www.lexicon.com.
An important point after buying a device Lexicon 284 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lexicon 284 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lexicon 284 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lexicon 284 you will learn all the available features of the product, as well as information on its operation. The information that you get Lexicon 284 will certainly help you make a decision on the purchase.
If you already are a holder of Lexicon 284, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lexicon 284.
However, one of the most important roles played by the user manual is to help in solving problems with Lexicon 284. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lexicon 284 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
