Laney NEXUS-TUBE User Manual
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IMPORTANT SAFETY INSTRUCTIONS
WARNING: When using electric products, basic cautions should always be followed, including the following.
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1. Read all safety and operating instructions before using this product
2. The product should be powered by a three pin `grounded (or earthed) plug connected to a power socket with a grounded earth outlet.
3. All safety and operating instructions should be retained for future reference
4. Obey all cautions in the Operating instructions and on the back of the unit
5. All operating instructions should be followed
6. This product should not be used near water, i.e. a bathtub, sink, swimming pool, wet basement, etc.
7. This product should be located so that its position does not interfere with its proper ventilation. It should not be placed flat against a wall or placed in a built up enclosure that
will impede the flow of cooling air.
8. This product should not be placed near a source of heat such as stove, radiator, or another heat producing amplifier.
9. Connect only to a power supply of the type marker on the unit adjacent to the power supply cord.
10. Never break off the ground pin on a power supply cord.
11. Power supply cords should always be handled carefully. Never walk or place equipment on power supply cords. Periodically check cords for cuts or signs of stress, especially at
the plug and the point where the chord exits the unit.
12. The power supply cord should be unplugged when the unit is to be unused for long periods of time.
13. If this product is to be mounted in an equipment rack, rear support should be provided.
14. The user should allow easy access to any mains plug, mains coupler and mains switch used in conjunction with this unit thus making it readily operable.
15. Metal parts can be cleaned with a damp cloth. The vinyl covering used on some units can be cleaned with a damp cloth or ammonia based household cleaner if necessary.
Disconnect the unit from the power supply before cleaning.
16. Care should be taken so that objects do not fall and liquids are not spilled into the unit through any ventilation holes or openings. On no account place drinks on the unit.
17. A qualified service technician should check the unit if:
!
The power cord has been damaged
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Anything has fallen or spilled into the unit
!
The unit does not appear to operate correctly
!
18. The user should not attempt to service the equipment. All service work is done by a qualified service technician.
19. Exposure to extremely high noise levels may cause a permanent hearing gloss. Individuals vary considerably in susceptibility to noise induced hearing loss, but nearly everyone
Duration Per Day In Hours Sound Level dBA, slow response
According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors in the ear canals or over the ears must be
worn when operating this amplification system in order to prevent a permanent hearing loss if exposure exceeds the limits set forth above. To ensure against potentially dangerous
exposure to high sound pressure levels it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be
protected by hearing protectors while this unit is in operation.
The unit has been dropped or the enclosure damaged.
will lose some hearing if exposed to sufficiently intense noise for a sufficient time. The U.S. Government's Occupational Safety and Health Administration (OSHA) has specified
the following permissible noise level exposure.
8 90
6 92
4 95
3 97
2 100
1 ½ 102
1 105
½ 110
¼ or less 115
SAVE THESE INSTRUCTIONS
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CAUTION:
ATTENTION:
PRECAUCION:
VORSICHT:
WARNING:
ADVERTISSEMENT:
ADVERTENCIA:
ACHTUNG:
Intended to alert the user to the presence of uninsulated ‘Dangerous Voltage’
within the products enclosure that may be sufficient to constitute a risk of
electrical shock to persons.
Ce symbole est utililise pur indiquer a l’utilisateur de ce produit de tension nonisolee dangereuse pouvant etre d’intensite suffisante pour constituer un risque
de choc electrique.
Este simbolo tiene el proposito de alertar al usuario de la presencia de ‘(voltaje)
peligroso’ que no tiene aislamiento dentro de la caja del producto que puede
tener una magnitud suficiente como para constituir riesgo de corrientazo.
Dieses Symbol soll den Anwender vor unsolierten gefahrlichen Spannungen
innerhalb des Gehauses warnen, die von Ausrichender Starke sind, um einen
elektrischen Schlag verursachen zu konnen.
Intended to alert the user of the presence of important operating and
maintenance (Servicing) instructions in the literature accompanying the product.
Dieses Symbol soll den Anwender vor unsolierten gefahrlichen Spannungen
innerhalb des Gehauses warnen, die von Ausrichender Starke sind, um einen
elektrischen Schlag verursachen zu konnen.
Este simbolo tiene el proposito de la alertar al usario de la presencis de
instrucccones importantes sobre la operacion y mantenimiento en la literatura
que viene conel producto.
Dieses Symbol soll den Benutzer auf wichtige Instruktionen in der
Bedienungsanleitung aufmerksam machen, die Handhabung und Wartung des
Produkts betreffen.
Risk of electrical shock - DO NOT OPEN.
To reduce the risk of electrical shock, do not remove the cover. No user
serviceable parts inside. Refer servicing to qualified personnel.
Risques de choc electrique - NE PAS OUVIRIR
Afin de reduire le risque de choc electrique, ne pas enlever le couvercle. II ne
se trouve a l’interieur aucune piece pouvant etre reparee par l’utilisateur.
Confier l’entretien a un personnel qualifie.
Riesgo de corrientazo - no abra
Para disminuir el risego de carrientazo, no abra la cubierta. No hay piezas
adentro que el pueda reparar. Deje todo mantenimiento a los tecnicos
calificadod.
Risiko - Elektrischer Schlag! Nicht offen!
Um das Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung
enfernen. Es befinden sich keine Teile darin, die vom Anwender repariert
werden Konnten. Reparaturen nur von qualifiziertem Fachpersonal durchfuhren
lassen.
To prevent electrical shock or fire hazard, do not expose this appliance to rain
or moisture. Before using this appliance please read the operating instructions
for further warnings.
Afin de prevenir les risques de decharge electrique ou de feu, n’exposez pas
cet appareil a la pluie ou a l’humidite. Avant d’utiliser cet appareil, lisez les
advertissments supplentaires situes dans le guide.
Para evitar corrientazos o peligro de incendio, no deja expuesto a la lluvia o
humedad este aparato Antes de usar este aparato, lea mas advertcias en la
guia de operacion.
Um einen elektrischen Schalg oder Feuergefahr zu vermeiden, sollte dieses
Gerat nicht dem Regen oder Feuchtigkeit ausgesetzt werden. Vor
Inbetriebnahme unbedingt die Bedienungsanleitung lesen.
BEFORE SWITCHING ON
After unpacking your amplifier check that it is factory fitted with a three pin
'grounded' (or earthed) plug. Before plugging into the power supply ensure you
are connecting to a grounded earth outlet.
If you should wish to change the factory fitted plug yourself, ensure that the wiring
convention applicable to the country where the amplifier is to be used is strictly
conformed to. As an example in the United Kingdom the cable colour code for
connections are as follows.
EARTH or GROUND GREEN/YELLOW
NEUTRAL - BLUE
LIVE - BROWN
NOTE
This manual has been written for easy access of information. The front and rear
panels are graphically illustrated, with each control and feature numbered. For a
description of the function of each control feature, simply check the number with
the explanations adjacent to each panel.
Your Laney amplifier has undergone a thorough two stage, pre-delivery inspection,
involving actual play testing.
When you first receive your Laney guitar amplifier, follow these simple procedures:
(i) Ensure that the amplifier is the correct voltage for the country it is to be used in.
ii) Connect your instrument with a high quality shielded instrument cable. You
have probably spent considerable money on your amplifier and guitar - don’t use
poor quality cable it won’t do your gear justice.
Please retain your original carton and packaging so in the unlikely event that some
time in the future your amplifier should require servicing you will be able to return it
to your dealer securely packed.
Care of your Laney amplifier will prolong it's life.....and yours!
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Laney
Dear Player,
Thank you very much for purchasing your new Laney product and becoming part of the worldwide Laney family. Each and every
Laney unit is designed and built with the utmost attention to care and detail, so I trust yours will give you many years of
enjoyment.
Laney products have a heritage which stretches back to 1967 when I first began building valve amplifiers in my parent’s garage.
Since then we have moved on from strength to strength developing an extensive range of guitar, bass, public address and
keyboard amplification products along with a list of Laney endorsees that includes some of the world’s most famous and
respected musicians. At the same time we believe we have not lost sight of the reason Laney was founded in the first place - a
dedication to building great sounding amplification for working musicians.
Warm Regards,
Introduction
The Nexus Tube amplifier is the culmination of our 40 years of experience in the bass amplification business. It is built to the
highest professional standards using the best available parts.
Through out the design we have considered the requirements of the professional player who not only requires great sounds but
also the utmost reliability. To this end we have used the best tubes available, gold plated circuit boards, gold relays for all signal
switching, massive oversized toroidal transformers plus an overall feature set and sound second to none.
The amplifier is assembled in our UK factory by our very experienced staff with great attention to detail and inspection. It is then
electrically bench tested. Following this, it is put through extensive burn in procedures over many hours. Afterwards it goes back
to the test bench for a further re-check and final calibration.Only when it has successfully passed these stages is it then put into
its cabinet.
Then comes the most important part of all; actual play testing. One of our experienced bass guitarists spends a long time putting
the amplifier though its paces, checking all the sounds and functions are perfect. Only then does it get the seal of approval to be
carefully packed and shipped.
We hope you enjoy using your Nexus amplifier as much as we have enjoyed designing and building it.
Best wishes from all at Laney.
OPERATING INSTRUCTIONS
Lyndon Laney CEO
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NXT USER TIPS & QUICK START
Connecting up your rig: Check your amplifier is the correct working voltage for the area you are in. Ensure you use the earthed power cord supplied
with your amplifier to connect to the power supply. Make sure the supply socket you are using is an earthed/grounded type.
Ensure you connect your speakers to the appropriate impedance socket with good quality speaker cable and connectors before
switching on your amplifier. If not using Nexus speakers ensure they are of sufficient power handling capacity and correct
impedance.
Quick start: Make sure the volume control is at minimum. The gain controls are at minimum. The EQ and graphic slider controls are at the
centre zero position and none of the push switches are illuminated. Turn your amplifier on with the power switch making sure that
the standby switch is in the standby position first. After a minute or so turn on the standby switch to the Run position. Plug in your
guitar using a good quality screened lead. Press the FET channel select button. Play your bass guitar and adjust the FET Gain
control until your playing lights the amber led in the bar graph display and only very occasionally on loud peaks the Red. If you
find that the gain control has to be set quite low to achieve this, try pressing in the pad switch to lower the input sensitivity. Now
advance the Volume control to the desired listening level. Apply tone correction as desired but try to use small amounts of boost
and cut to your sound. Over correction will nearly always sound bad. Don't forget most of the controls have cut and boost don't
boost them all, cut sounds good too especially in the mid range. Try to always use the minimum tone correction to get your
desired sound. As you adjust your tone you may need to readjust the gain control to maintain the correct level on the bar graph
display.
Ventilation:
Ensure the amplifier is well ventilated and that the top and bottom vents are not obstructed in any way.
Avoid dropping anything in through the vents especially liquids of any kind. If this should happen turn off the product and disconnect
from the power supply immediately and leave to dry out for at least 24hrs.
Rack Mounting:
The chassis may be removed from its wooden cabinet and fitted into a standard 19” rack unit. However the chassis must be mounted
on a metal supporting shelf to provide sufficient support and to cover the exposed areas on the underside of the chassis. Ventilation
must also be considered and adequate provisions made. We do however recommend retaining the amplifier in its wooden case and
transporting in a suitable foam lined flight case when ever possible.
Speaker Cabinets:
The Laney Nexus range of cabinets has been specially designed for use with this amplifier. Their power ratings and impedances
have been carefully matched for optimum performance. Use of other cabinets may result in an inferior sound. (See connection
diagrams for wiring up).
OPERATING INSTRUCTIONS
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QUICK START SETTINGS - Suggestions only, experiment
OPERATING INSTRUCTIONS
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QUICK START SETTINGS - Suggestions only, experiment
OPERATING INSTRUCTIONS
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FRONT & REAR PANEL CONTROLS
OPERATING INSTRUCTIONS
Power inlet connector:
This is provided to connect to the main power supply using the lead provided. Ensure that the
supply voltage is suitable for your amplifier as marked on the rear panel. Ensure that the
amplifier is connected to a grounded/earthed supply socket. Do not remove power supply
earth connections under any circumstances.
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