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

45554 RØDE NTK 21/2/01 2:42 PM Page 3

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)

45554 RØDE NTK 21/2/01 2:42 PM Page 4

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

45554 RØDE NTK 21/2/01 2:42 PM Page 5

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.

Earth Lift switch Microphone input

Voltage selector

Main’s power

socket

Main’s fuse

Microphone

output

45554 RØDE NTK 21/2/01 2:42 PM Page 6

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

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.

ft,

ector

ower

use

45554 RØDE NTK 21/2/01 2:42 PM Page 7

•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.

45554 RØDE NTK 21/2/01 2:42 PM Page 8

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

45554 RØDE NTK 21/2/01 2:42 PM Page 9

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.

45554 RØDE NTK 21/2/01 2:42 PM Page 10

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

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: 61-2 8765 9333

Fax: 61-2 8765 9444

U.S.A. Tel: 310 325 4444

Fax: 310 325 4773

Australia: Tel: (02) 8765 9333

Fax: (02) 8765 9444

Technical Enquiries: [email protected]

Sales Enquiries: [email protected]

web site: www.rodemicrophones.com

45554 RØDE NTK 21/2/01 2:42 PM Page 12

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