RODE Microphones NTK Manual

®
NTK
Instruction Guide
STUDIO CONDENSER MICROPHONES
®
(EMC, LVD)
✔
45554 RØDE NTK 21/2/01 2:42 PM Page 1

Thank you for investing in your NTK.
You have chosen a very special audio product
which is the culmination of an extensive
development program.
Our brief was to produce a truly superior valve
condenser microphone. That has been achieved.
The finest components, and an uncompromising
build philosophy ensure that your creative efforts
will gain their just rewards.
®
Serial Number:..........................................
Checked by: ..............................................
Date:..........................................................
The NTK
Valve Condenser Microphone
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The NTK comes complete with the following
accessories.
Available as an optional extra:
Power Supply (NTK-PS)
Power Cable (PL100)
Shock Mount (SM2)
NTK Cable (NTR-C)
Stand Adaptor (M2)
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SPECIFICATIONS:
•Capsule: Externally polarised 1’’ pressure-
gradient condenser
•Active Electronics: Unity-gain closed-loop impedance
converter; vacuum-tube input with
bi-polar buffering.
•Polar Pattern: Cardioid
•Frequency Response: 20 Hz ~ 20 kHz (+/-6dB)
•Output Impedance: 200 ohms (100 ohms per leg)
•Sensitivity: -38dB re 1V/Pa (12mV @ 94dB
SPL) +/- 1dB
•Equivalent Noise: 12dB SPL (A-weighted, per
IEC268-15) +/-2dB
•Maximum Output: >+29dBu @1kHz, 5% THD into
1Kohm load)
•Dynamic Range: >147dB (A-weighted, per IEC268-15)
•Maximum SPL: >158dB SPL @1kHz, 5% THD into
1Kohm load
•Signal/Noise Ratio: >82dB (A-weighted, per IEC268-15)
•
External Power Supply: 100-120V / 200-240V (user-
selectable) 50Hz/60Hz, 25VA
maximum.
•Packed Weight: 4.53kg
•Microphone Only: 760gm
FEATURES:
•Large capsule with
gold-plated membrane
•Ultra low noise
•Wide dynamic range
•Class A valve circuitry
•Hand-selected and graded
twin-triode valve ‘6922’
FREQUENCY RESPONSE
POLAR PATTERN
•Dedicated Power Supply
•High strength heat-
treated steel mesh head
•Durable satin nickel finish
•Internal capsule shock
mounting
•High level of RF rejection
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Before using the NTK:
•Ensure that your NTK has been set to the
correct voltage as used in your country.
•The back panel of the NTK power supply has a
microphone output socket, a ground (earth) lift,
a microphone input socket, a voltage selector,
and a mains power socket which also
incorporates a fuse. (see 1.)
•The front panel of the power supply has the
mains power on/off switch, and a blue LED
(light-emitting diode) to indicate power status.
•The NTK can be used with mains supply
voltages of between either 110-120V 50/60Hz,
or 220-240V 50/60 Hz.
•To select for 100-110V use, set the Voltage
Selector to 115V. (see 2.)
•To select for 220-240V use, set the Voltage
Selector to 230V. (see 2.)
•Note: on either voltage selection the mains fuse
(inside the mains socket) is always to be a
T500mA slow blow fuse.
Having ensured that the power supply is now set
to the correct voltage, you can begin to connect
the NTK to its supply.
1.
2.
Earth Lift switch Microphone input
Voltage selector
Main’s power
socket
Main’s fuse
Microphone
output
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NOTE: Do not have the power connected before
the 7 pin multi-core microphone cable has been
connected first!
•Take the NTK Cable (supplied) and connect the
male 7 pin plug to the 7 pin input socket on the
back panel of the power supply. (see 3.)
•Connect the other end of the cable (female 7pin
plug) to the microphone. Ensure that both these
plugs are correctly aligned and pushed firmly
into their respective sockets.
•Now connect a microphone cable to the output
socket of the power supply taking that output
into your mixer/pre-amplifier. We suggest you
use a high quality microphone cable preferably
with gold-plated contacts. Use as short a cable
as is reasonable, as long cables can adversely
affect sound quality. Ensure the cable is
balanced and connected Pin 2+ Pin 3- and Pin
1 screen.
•Ensure that the NTK is fixed securely (using the
M2 stand mount, or optional SM2 shock mount)
to a stable microphone stand. The NTK
condenser microphone is a precision
instrument, and should not be dropped, banged
or knocked. Take care.
•Connect the power supply to the mains supply,
and you are ready to switch on and begin using
the NTK.
•When you switch on the unit, the blue LED on
the power supply will not glow immediately, it
will gradually glow brighter then stabilize. It is
powered by the filament voltage in the NTK’s
valve, which takes a few seconds to ‘warm up’,
so the LED is in fact not only an on/off indicator,
it also shows when the microphone is stable
and ready for use. Although power is normally
achieved in approximately 12 seconds, it is
wise to allow a minute or two to really ensure
that the NTK is ready for use.
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•For vocal use, we recommend the use of a
‘Pop-Stopper’wind screen, which will help to
reduce high-level plosives which are evident
when ‘B’and ‘P’sounds are emitted within close
proximity to the microphone.
•If an Earth Loop is present, (a mains frequency
hum), there is a Ground Lift switch on the back
panel of the power supply which should be
raised to the ‘lift’position. (see 4.) This earth
loop can appear when two devices which are
both earthed are connected together.
4.
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NEVER REMOVE THE MAINS EARTH
Doing so can have lethal consequences
ACHTUNG: LEBENSGEFAHR!
ENTFERNE NIEMALS DEN
SCHUTZLEITER
NON SCOLLEGATE IL FILO DI TERRA
Potrebbe essere molto pericoloso per il
rischio di scosse elettriche
RELIEZ IMPERATIVEMENT
L’ALIMENTATION A LA PRISE TERRE
sous risque mortel d’électrocution
NUNCA MANIPULE LA TOMA DE TIERRA,
ESTA ACCION PUEDE TENER GRAVES
CONSECUENCIAS
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NOTE: There are NO user-serviceable parts inside the
Classic II supply, but there ARE potentially lethal
voltages.
If the supply does not work correctly, you should consult
either the dealer you purchased the microphone from, or
a qualified electronic technician.
DO NOT under any circumstance open the unit yourself.
ACHTUNG: Das Classic II Netzteil enthält keine
Teile, die vom Benutzer repariert werden können.
Gefahr: Das Ger¨ät enth¨ält spannungführende
Bauteile! Für Reparaturen suchen Sie bitte Ihren
H¨ändler oder einen qualifizierten Fachbetrieb auf.
Auf keinen Fall dürfen Sie selbst das Geh¨ause
offnen!
NOTA: All’interno dell’alimentatore del Classic II NON
ci sono parti riparabili dall’utente ma ci sono invece
tensioni pericolose! Se I’alimentatore non funziona
correttamente dovete consultare il rivenditore presso il
quale avete acquistato il microfono oppure un tecnico
elettronico qualificato.
NON APRITE in ogni caso I’unitàin quanto pericoloso!
AVERTISSEMENT: N’enlevez pas le capot de
I’alimentation, sous risque d’éléctrocution. Si
I’alimentation ne fonctionne pas correctement,
consultez votre revendeur, ou un technicien
qualifié.
Vous ne devez sous aucun prétexte ouvrir
I’alimentation vous-même.
NOTA: NO MANIPULE INTERNAMENTE LA FUENTE
DE ALIMENTACION DEL RODE CLASSIC II,
PUESTO QUE EL ALTO VOLTAJE PUEDE SER
PERJUDICIAL EN CASO DE SUFRIR UNA
DESCARGA. SI SE APRECIARA UN
FUNCIONAMIENTO INCORRECTO DE LA FUENTE
DE ALIMENTACION, DEBERA CONSULTARLO EN
EL ESTABLECIMIENTO DONDE ADQUIRIO LA
UNIDAD, SOLO PUEDE SER MANIPULADO POR
UN SERVICIO TECNICO CUALIFICADO, BAJO
NINGUNA CIRCUNSTANCIA ABRA VD. LA UNIDAD.
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Warranty Service:
All products are warrantied for one
year from your date of purchase and
the warranty card or on-line registration
(www.rodemicrophones.com) should be used to
register your microphone.
The warranty covers parts and labour that may be
required to repair the microphone during the
warranty period. The warranty excludes defects
caused by normal wear, modification, shipping-
damage, or failure to use the microphone as per
the instruction guide.
If you experience any problems, or have any
questions regarding your microphone,
first, contact the Dealer who sold it to you. If you
have any difficulty obtaining the advice or
assistance you require, do not hesitate to contact
us directly.
International: Tel: [phone]
Fax: [phone]
U.S.A. Tel: [phone]
Fax: [phone]
Australia: Tel: [phone]
Fax: [phone]
Technical Enquiries: [email protected]
Sales Enquiries: [email protected]
web site: www.rodemicrophones.com
®
®
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