Rode NTK Condenser Microphone Instruction Manual

Rode NTK Condenser Microphone

Introduction

Thank you for investing in the multi-award-winning RODE  NTK valve condenser microphone.

• The NTK is the result of an extensive development program to create a truly superior valve condenser microphone.
• The heart of the NTK is the Australian-designed and manufactured HF-2 capsule. The electronic circuitry complementing this very sensitive transducer includes a hand-selected twin-triode 6922 valve and audiophile-grade components and layout.
• The result is an ultra-wide dynamic range, very low noise, and stunning tube warmth that has made the RODE NTK is a favorite in the hearts and studios of tens of thousands of audio professionals around the world.
• The NTK’s rich valve sound is ideal for vocals, acoustic instruments, drum overheads, guitar amps, and pianos.
• Please take the time to visit www.rodemic.com and register your microphone for a full ten-year warranty.
• While there you can view studio tips and techniques, as well as browse the comprehensive range of accessories for RODE microphones.

Peter Freedman RODE Microphones Sydney, Australia

Specifications

• Acoustic Principle: Pressure gradient
• Active Electronics: Valve/tube impedance converter with bipolar output Buffer
• Directional Pattern: Cardioid (see graph)
• Frequency Range: 20Hz ~ 20,000Hz (see graph)
• Output Impedance: 200Ω
• Sensitivity:
  • -38dB re 1V/Pa @ 1kHz
  • 25mV/Pa @ 94dB SPL
  • ±2dB @ 1kHz
• Equivalent Noise: 12dBA SPL (per IEC651)
• Maximum Output: +29dBu (@ 1kHz, 1% THD into 1kΩ)
• Dynamic Range: 147dB (per IEC651)
• Maximum SPL: 158dB (@ 1kHz, 1% THD into 1kΩ)
• Signal/Noise: 82dB SPL (@ 1kHz, rel 1Pa per IEC651)
• Power Requirement: Dedicated power supply (100-120V / 200-240V AC 50/60Hz)
• Net Weight: 760g
• Dimensions: 208 x 55 x 55mm

Frequency Response

Polar Response

Accessories

• Power supply (NTK-PS)
• NTK cable (NTK-C)
• Power cable (PL100)
• Stand adaptor (M2)

Features

• Large capsule (1”) with gold-plated diaphragm
• Class “A” valve circuitry
• Hand-selected and graded 6922 twin-triode valve
• Dedicated power supply
• Ultra-low noise
• Wide dynamic range
• High strength heat treated steel mesh head
• High level of RF rejection
• Designed & manufactured in Australia
• Full 10-year guarantee

IMPORTANT NOTICE

• DO NOT DISCONNECT THE MICROPHONE CABLE WHILE THE SYSTEM IS POWERED AS THIS MAY RESULT IN DAMAGE TO THE MICROPHONE
• NEVER REMOVE THE MAIN EARTH DOING SO CAN HAVE LETHAL CONSEQUENCES

Before using the NTK

• Ensure that your NTK has been set to the correct voltage, as used in your country. The NTK can be used with mains supply voltages of between either 110-120V 50/60Hz or 220-240V 50/60Hz.
  • To select for 110-120V use, set the voltage selector to 115V.
  • To select for 220-240V use, set the voltage selector to 230V.
• On either voltage selection, the mains fuse (inside the mains socket) is always to be a T500mA slow blow fuse.
• 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.
• The front panel of the NTK power supply has the mains power on/off switch and a blue LED to indicate power status.

Connecting the NTK

• Having ensured that the power supply is set to the correct voltage you can begin to connect the NTK to the power supply. Do not connect the power to the mains before connecting the microphone.
• Connect the male 7-pin plug of the NTK cable to the 7-pin input socket on the rear of the power supply.
• Connect the female 7-pin plug of the NTK cable to the microphone. Ensure that both plugs are correctly aligned and pushed properly into their respective sockets.
• Now connect an XLR microphone cable to the output socket on the rear of the power supply, taking that output to your mixer/pre-amplifi er.
• We suggest the use of a high-quality cable, preferably with gold-plated contacts. Use as short a cable as possible, as long cables can adversely affect sound quality.
• Ensure that the NTK is fixed securely (using the supplied stand mount, or optional SM2 shock mount) to a stable microphone stand. The NTK condenser microphone is a precision instrument and should be treated with care.
• Now you can connect the power supply to the mains supply and begin using the NTK microphone.

Using the NTK

• The gold dot on the face of the NTK indicates the front of the microphone and the pick-up area of the cardioid pattern. Please be sure to have the side with the dot facing the sound source you wish to record.

• Microphone technique, or how to get the sound you want, requires experimentation.
  We suggest that you start with the channel EQ set to ‘OFF’ or ‘FLAT’ (no boost or cut). Try to get the sound you want by placing either reflective or absorbent panels at various angles adjacent to the source being recorded.

• Changing the acoustic properties of the space around the microphone is our recommended initial approach for obtaining the best sound quality. Remember you cannot change a room’s acoustic properties with EQ. When the preferred sound has been achieved (as above) then EQ and effects such as reverb or indeed any signal processing can be used for enhancement, but should be used sparingly.

• It is worth mentioning that sometimes ‘cutting’ a particular frequency (sound) may be preferable to ‘boosting’ another. Of course ‘boosting’ can increase noise level and so should be done minimally. As with many other aspects of the recording process, finding the preferred ‘sound’ is a matter of experimentation.

• We strongly recommend the use of a pop shield or filter for all vocal recordings. These aid in minimizing plosive sounds (hard ‘P’, ‘B’, ‘T’, and ‘K’ sounds) that produce a sudden jet of air which can cause the capsule to overload and produce a ‘popping’ sound.

• Any moisture on the microphone capsule can cause problems for condenser microphones, however the use of a pop shield or windshield
  (optional accessory WS2) will reduce the risk of this occurring.

• Placement of the microphone and pop shield relative to the vocalist may vary on several factors including room acoustics, the vocal performance, and whether the vocalist has a high or deep voice.

• An ideal reference is to begin with the pop shield directly in front of the vocalist, and approximately 15cm (6”) away from the microphone. This will assist in keeping the performer at a constant minimum distance from the microphone and help to maintain reasonable recording levels.

• Experimentation should be made with the angle from which the microphone is addressed, as different results can be achieved when the vocalist is ‘off-axis’ to the microphone (and the gold dot).

• If an earth loop is present (a mains frequency hum) there is a ground lift switch on the rear panel of the power supply, which should be raised to the ‘lift’ position. This earth loop can appear when two devices that are both earthed are connected together.

Storage

• After use the NTK should be removed from its mount, wiped with a dry, soft cloth, and placed in its protective case.
• Be sure to place the moisture-absorbent crystals (supplied) at the head of the microphone, so as to absorb any moisture present. Eventually, this pack of crystals will need to be dried. This is indicated by the crystals turning pink in color. They can easily be re-used by placing them in an oven at 100 – 150 degrees Celsius for approximately ten minutes. The crystals will operate effectively again once they have turned blue.

IMPORTANT NOTICE

NOTE: There are no user-serviceable parts inside the NTK 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 qualifi ed electronic technician. DO NOT under any circumstance open the unit yourself!

Warranty

• All microphones are warranted for one year from the date of purchase. You can extend that to a full ten years if you register online at www.rodemic.com.
• The warranty covers parts and labor that may be required to repair the microphone during the warranty period. The warranty excludes defects caused by normal wear and tear, modifi cation, shipping damage, or failure to use the microphone as per the instruction guide.
• If you experience any problem or have any questions regarding your microphone, first contact the dealer who sold it to you. If the microphone requires a factory-authorized service, the return will be organized by that dealer.
• We have an extensive distributor/dealer network, but if you have difficulty getting the advice or assistance you require, do not hesitate to contact us directly.

International:

• Address: 107 Carnarvon Street, Silverwater NSW 2128, Australia
• Phone: +61 2 9648 5855
• Fax: +61 2 9648 2455

USA:

• Address: P.O. Box 4189, Santa Barbara, CA 93140-4189
• Phone: 805 566 7777
• Fax: 805 566 0071

Technical Support:

• For information and technical support questions, you can contact:
  • In the United States and Puerto Rico:
  • Email: usasupport@rodemic.com
  • Phone: 805 566 7777
  • In Australia:
  • Email: ozsupport@rodemic.com
  • Phone: (02) 9648 5855
  • Anywhere except Australia, the United States, and Puerto Rico:
  • Email: support@rodemic.com
  • Phone: +61 2 9648 5855

FREQUENTLY ASKED QUESTIONS

What is the Rode NTK Condenser Microphone?

The Rode NTK is a premium large-diaphragm condenser microphone known for its high-quality audio capture, versatility, and warm, rich sound. It is a popular choice for professional studio recording.

What are the key features of the Rode NTK Condenser Microphone?

Key features include a hand-selected twin-triode 6922 tube, low noise, wide dynamic range, and a cardioid polar pattern, making it suitable for vocals, instruments, and more.

Is the Rode NTK compatible with various audio interfaces?

Yes, the Rode NTK can be used with various audio interfaces that provide phantom power (48V) and feature an XLR input, ensuring compatibility with a wide range of studio setups.

What types of audio recording applications is the Rode NTK ideal for?

The Rode NTK is versatile and well-suited for various audio recording applications, including studio vocals, acoustic instruments, electric guitars, and voiceovers.

Does the Rode NTK require any specific preamplifiers for optimal performance?

The Rode NTK does not necessarily require additional preamplifiers, as it features its built-in preamplification. However, using a high-quality external preamplifier can further enhance its performance.

What accessories are included with the Rode NTK Condenser Microphone?

The microphone package typically includes a dedicated power supply, shock mount, microphone cable, and a dust cover, ensuring you have essential accessories for your setup.

Is the Rode NTK known for its durability and build quality?

Yes, the Rode NTK is renowned for its durability and sturdy construction, ensuring long-lasting performance even in demanding studio environments.

Can I use the Rode NTK for live sound applications?

While the Rode NTK is primarily designed for studio recording, it can be used for live sound applications if connected to suitable audio equipment. However, it is more commonly used in studio settings.

Is the Rode NTK compatible with both Windows and Mac operating systems?

Yes, the Rode NTK is compatible with both Windows and Mac operating systems, making it accessible to a wide range of users.

Can I replace the tube in the Rode NTK?

Yes, the twin-triode 6922 tube in the Rode NTK is user-replaceable. You can find replacement tubes to maintain or customize the microphone's sound characteristics.

What is the warranty coverage for the Rode NTK Condenser Microphone?

Warranties often range from 6 months to 1 year or more.

Is there an optional pop filter available for the Rode NTK?

Yes, Rode offers an optional pop filter (model: Rode PSM1) that can be used with the Rode NTK to reduce plosive sounds during vocal recording.

Can I use the Rode NTK with tube preamplifiers for different tonal options?

Yes, the Rode NTK can be used with external tube preamplifiers to introduce different tonal characteristics and achieve various sonic textures.

Is the Rode NTK known for its sensitivity to subtleties in audio recording?

Yes, the Rode NTK is known for its sensitivity and ability to capture subtle nuances in audio, making it a valuable tool for capturing detailed performances.

Where can I purchase the Rode NTK Condenser Microphone?

You can purchase the Rode NTK Condenser Microphone from authorized Rode retailers, online stores, or directly from the Rode website.

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