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USER MANUAL 6301N FOSTEX
Active monitor speaker
6301ND/NX/NE/NB

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Fostex 6301 portable electronic device with speaker grille and control knobs (no visible text or symbols on main body)Thank you for purchasing this Fostex product. This manual provides instructions for basic use of the unit. Read this before using the unit for the first time.
■ WARNINGS and PRECAUTIONS
- CAUTION: To prevent electric shock hazard, do not connect to mains power supply while grille is removed.
- WARNING: An apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing connection.
- WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
- CAUTION: Use of any controls or adjustments or performance of procedures other than those herein specified may result in hazardous radiation exposure.
- WARNING: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
- WARNING: Do not place the unit on top of any soft, porous, or sensitive surfaces to avoid damaging the surface. Use a protective barrier between the unit and surface to protect the surface.
- WARNING: Use of this unit near fluorescent lighting may cause interference regarding use of the remote. If the unit is displaying erratic behavior move away from any fluorescent lighting, as it may be the cause.
- CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.
- WARNING: Do not install this equipment in a confined space such as a book case or similar unit.
WARNING: Mains plug is used as disconnect device and it should remain readily operable during intended use. In order to disconnect the apparatus from the mains completely, the mains plug should be disconnected from the mains socket outlet completely.
- Do not mix old and new batteries. Do not mix alkaline, standard (carbonzinc), or rechargeable (ni-cad, ni-mh, etc) batteries.
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
1) Read these instructions. Lisez ces instructions.
2) Keep these instructions. Conservez ces instructions.
3) Heed all warnings. Respectez tous les avertissements.
4) Follow all instructions. Suivez toutes les instructions.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tipover.
The 6301N series are small monitors with built-in amplifiers for various kinds of monitoring.
■ Features of 6301ND/NX/NE/NB
- The cone-shaped, full-range speaker produces stable sound.
- As the speaker is compact and consists of a single unit, it can be placed anywhere.
- The speaker uses a tough, aluminum die cast enclosure.
- The speaker has the same width and height as the older model, so upgrading is easy.
- Switches and knobs do not protrude from the panel to prevent damage caused if the speaker falls over.
- Equipped with a switching power circuit compatible with 100 V to 240 V AC power supplies.
- By attaching wall mounting bracket EB-6301 (sold separately) to the unit, you can both adjust the angle of the unit and fix it to walls.
- The unit has an auto standby function that saves power automatically (power consumption of 0.5 W or less) when input continuously falls below a certain level.
■ Comparison of the different models
| Input Output | ||
| 6301ND | Digital (AES/EBU)/XLRAnalog (unbalanced)/phone | THRU (AES/EBU) /XLR |
| 6301NX | Analog (transformer type balanced)/XLRAnalog (unbalanced)/phone | — |
| 6301NE | Analog (electronic type balanced)/XLRAnalog (unbalanced)/phone | — |
| 6301NB | Analog (unbalanced)/phone — |
■ Accessories
- Power cord × 1
- Owner's manual (this manual) × 1
Part names and functions
■ Front (same for 6301ND/NX/NE/NB)
① [VOLUME]
Adjusts the volume.
② [POWER] indicator
Lights to indicate the state of the unit.
③ [ON/OFF] button
Turns the unit on/off.
![FOSTEX 6301N - ③ [ON/OFF] button - 1](/content/2026/02/418900/images/830d1fcdfcaf9b5d1671dfbf42c470e295a09d89ab5744d372f967090a329cb4.jpg)
Note
- Use a standard AC outlet.
- Disconnect the plug from the outlet when the unit will not be used for a long time.

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6301 Fostex ① ② ③ TIME OFF/LEFT TIME1
2
FostexBack
4 [DIGITAL IN] terminal
AES/EBU-compliant digital input terminal.
⑤ [DIGITAL THRU] terminal
Directly outputs the signal from the [DIGITAL IN] terminal.
⑥ Analog input terminal (phone)
φ6.3 mm (1/4") TS phone unbalanced analog input terminal.
Inputs connected to the analog input terminal 6 are prioritized over inputs to other terminals.
6301ND: [ANALOG IN]
6301NX/NE: [INPUT UNBALANCED]
6301NB: [INPUT]
6301ND

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5 4 IN THRU IN R R+L L DIGITAL ANALOG INPUT SEL FOSTEX 6301ND Active Monitor Speaker CAUTION ATTENTION RISK OF ELECTRIC SHOCK DO NOT OPEN DANGEROLECTROSION NE PAS DURING! CONFORM TO AMELS STD, REDS PERIFIED TO CANVISA STD, CRL2 NO 85000 Intertek INTERTYG AC IN 100-240V - 50/60Hz MADE IN CHINA⑦ [INPUT SEL] switch
Used to select the type of analog signal that the digital signal is transformed into.
Choose between left and right (R+L), left only (L), and right only (R).
8 [AC IN] terminal
Used to connect to a power outlet using the supplied power cord.
⑨ [INPUT BALANCED] terminal
XLR balanced analog input terminal.
6301NX uses a transformer type balanced system, and 6301NE uses an electronic type balanced system.
6301NX/NE
![FOSTEX 6301N - ⑨ [INPUT BALANCED] terminal - 1](/content/2026/02/418900/images/f41ddb064503db77161c996d4e2aa67bc229399ea6c00afbea04967cf69820e0.jpg)
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BALANCED UNBALANCED INPUT FOSTEX 6301NX Active Monitor Speaker CAUTION ATTENTION RISK OF ELECTRIC SHOCK 20 MOT OPEN JANGER ON ELECTRICATION NE PAS OVERTER CONFORMS TO AMENIA BTD, 00088 CARTIRED TO CANICABUTO, G22 Z NO. 00088 Interlek 2019/115 AC IN N2215 CE 100-240V-50/60Hz MADE IN CHINA(The unit pictured above is 6301NX.)
6301NB
![FOSTEX 6301N - ⑨ [INPUT BALANCED] terminal - 2](/content/2026/02/418900/images/df4ae8348ced09e82ea9636ff7fbbb310d2ae89b777c814df6d3705e100d5c58.jpg)
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Fostex 6301NB Active Monitor Speaker CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION DANGER OF ELECTRODUCTION BE PASQUAR R CONFORMA TO ANIMAL STD, RXRS CERTIFIED TO CANOCANTOL CELE NO. 9888 AC IN 100-240V-50/60Hz MADE IN CHINAThe [POWER] indicator
• 6301ND
Unlit: The power is off
Lit in green: A device is connected to the [DIGITAL IN] terminal and the digital signal is locked
Lit in orange: A plug is inserted in the analog input terminal (phone)
Lit in red: In standby
![FOSTEX 6301N - The [POWER] indicator - 1](/content/2026/02/418900/images/02f831b3ee13985cbd1ad31a6a8de81e31e0a1ea4c664eff4c42a3002c592001.jpg)
Note
- When a plug is inserted in the analog input terminal (phone), the indicator lights in orange whether anything is connected to the [DIGITAL IN] terminal or not.
- 6301NX/NE/NB
Unlit: The power is off
Lit in green: The power is on
Lit in red: In standby
The auto standby function
When input to the unit continues below a certain level for approximately 25 minutes, the auto standby function is activated, and power consumption is reduced to 0.5 W or below. If input then exceeds a certain level, the unit reverts to its normal state. The auto standby function may not function normally depending on the noise level of devices connected to the input terminals on the unit.

Note
- When a device is only connected to the [DIGITAL IN] terminal, the unit goes into standby unless the digital signal is locked.
- Even if the digital signal is locked, the unit goes into standby when input continues below a certain level for about 25 minutes.
Troubleshooting
| Problem Solutions | |
| There is no sound. | Check the connection. (⇒ page 4, page 5, page 6)Check the set volume of each device. |

Specifications
| 6301ND 6301 | NX 6301NE 6301NB | |||
| Type Sealed | powered speaker system | |||
| Speaker 100 mm cone-shaped, full-range speaker × 1 | ||||
| Frequency band | 70 Hz to 15 kHz | |||
| Output sound pressure level | 85 dB/W (1 m) | |||
| Maximum output sound pressure level | 98 dB | |||
| Rated output 20 W | ||||
| T. H. D. 0.05% | (at 1 kHz 1 W output) | |||
| Input terminal | Analog unbalanced/φ6.3 mm (1/4") TS phone | |||
| Digital XLR-3-31 type IEC60958 (AES/EBU) sampling frequency 44.1 kHz to 96 kHz | Analog balanced XLR-3-31 type HOT No. 2/ transformer type | Analog balanced XLR-3-31 type HOT No. 2/ electronic type | — | |
| Output terminal (THRU) | Digital XLR-3-32 type | — | ||
| Input impedance | Analog input (balanced/unbalanced) 10 kΩ or more | |||
| Input sensitivity | Analog (unbalanced): -14 dBV (0.2 Vrms) Digital: -12 dBFS | Analog (unbalanced): -14 dBV (0.2 Vrms) Analog (balanced): +4 dBu (1.2 Vrms) | Analog (unbalanced): -14 dBV (0.2 Vrms) | |
| Residual noise | -65 dBV | -70 dBV | ||
| Enclosure material | Aluminum die-casting | |||
| Power consumption | 10 W | |||
| External dimensions (mm) | 120 (W) × 189 (H) × 120 (D) | |||
| Weight Approx. 2.3 kg | ||||
| Length of the power cord | Approx. 2 m | |||
Dimensional drawings

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Pure technical line drawing of a rectangular enclosure or enclosure with no text, numbers, or symbols
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FOSTEX 6.301 112 10 7 120 FOSTEX 6.301NC AUDIO CONTROL SENSER ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 ( ) 120 FOSTEX 6.301NC AUDIO CONTROL SENSER
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Simple line drawing of a rectangular container with a circular hole at the center (no text or symbols)(6301ND is pictured above, but the external dimensions are the same for each model.)

Optional accessory
By attaching a wall fitting angle (sold separately) to the unit, you can adjust the angle of the unit and fix the unit to walls.
Wall fitting angle EB-6301

CAUTION

Ask a professional to fix the unit to a wall using the bracket.
Fostex is not responsible for accidents and casualties caused by using the bracket.

When you attach the unit to the bracket, attach it firmly using the screws supplied with EB-6301.
Otherwise the unit may fall and cause accidents leading to injuries and damage.

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6301 Fostex 6301ND/NX/NE/NB Wall fitting angle EB-6301Specifications
| External dimensions (mm) 200 (W) × 75 (H) × 148 (D) | |
| Weight 850 g | |
■ Accessories of EB-6301
- Mounting screw × 2
- Rubber washer (with no grooves) × 2

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Pure mechanical part diagram showing concentric circles and a rectangular block (no text or symbols)• Rubber washer (with grooves) × 2

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Pure diagram of concentric circles and a rectangular shape without any text or symbols■ Dimensional drawings of EB-6301

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APPEARANCE AREA■ Attaching EB-6301
1 Remove the screws on the top and bottom of the 6301N series.

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Line drawing of a Foxtex portable radio with speaker grille and control knobs (no text or symbols)2 Attach the rubber washers (with no grooves) to the top and bottom of the unit.

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6301 Fostex G G3 Fit the rubber washers (with grooves) onto the mounting screws.

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Diagram showing a mechanical component with a threaded shaft and a circular base, connected by an arrow indicating direction (no text or symbols)4 Adjust the unit to your preferred position in the bracket, then attach and tighten the mounting screws prepared in step 3.

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6307 FOSTOXDeclaration of EC Directive
This equipment is compatible with the EMC Directive (2004/108/EC) - Directive on approximation of member nation's ordinance concerning the electromagnetic compatibility and with the Low Voltage Directive (73/23/EEC) - Directive on approximation of member nation's ordinance concerning electric equipment designed to be used within the specified voltage range.
The Affect of Immunity on This Equipment
The affect of the European Specification EN61000-6-1 (coexistence of electromagnetic waves - common immunity specification) on this equipment are as shown below.
In the electrical fast transient/burst requirements, surge, conducted disturbances by radio-frequency fields, power frequency magnetic field, radiate electromagnetic field requirements and static electricity discharging environment, this could be affected by generation of noise in some cases.
FOSTEX DISTRIBUTORS LIST IN EUROPE
* Including non-EU countries (as of Jan. 2014)
Austria
NAME: Mega Audio GmbH
ADD: Stromberger Str. 32, 55411 Bingen, Germany
TEL:(+49)6721-94330,FAX:(+49)6721-32046
Email: info@megaaudio.de
Web Site: http://www.meqaaudio.de
Belgium
NAME: XLR sprl/bvba
ADD: Pierre Strauwenstraat 24, 1020 Brussels, Belgium
TEL:(+32)25200827,FAX:(+32)25211977
Email: info@xlrpro.be
Web Site: http://www.xlrpro.be
Czecho
NAME: Praha Music Center spol s.r.o.
ADD: Ocelarska 937/39, Praha 9, 190 00, Czecho
TEL: (+420) 226-011-111, FAX: (+420) 226-011-112
Email: info@pmc.cz
Web Site: http://www.pmc.cz
Denmark
NAME: SC Sound A/S
ADD: Dalgas Alle 15, DK-6600 Vejen, Denmark
TEL:(+45) 4399 8877, FAX:(+45) 4399 8077
Email: mail@sc-sound.dk
Web Site: http://www.sc-sound.dk
Finland
NAME: Noretron Oy Audio
ADD: Mankkaantie 32, FIN-02180 ESPOO, Finland
TEL:(+358)10-525-8000,FAX:(+358)10-525-8010
Web Site: http://www.noretron.fi
France
NAME: Sennheiser France
ADD: 128 bis, avenue Jean-Jaures, 94851 Ivry-sur-Seine Cedex, France
TEL: (+33) 149870300, FAX: (+33) 149870324
Web Site: http://www.sennheiser.fr
France
NAME: Selectronic (Speaker Components Only)
NAME: Hamy Sound (Headphones and USB DAC Only)
ADD: 28 Rue Edith Cavell, 92400 Courvevoie, France
TEL:(+33)147884702,FAX:(+33)147894872
Email: sav@hamysound.com
Web Site: http://www.hamysound.com
Germany
NAME: Mega Audio GmbH
ADD: Stromberger Str. 32, 55411 Bingen, Germany
TEL:(+49)6721-94330,FAX:(+49)6721-32046
Email: info@megaaudio.de
Web Site: http://www.megaaudio.de
Greece
NAME: Bon Studio S.A
ADD: 6 Zaimi Street, Exarchia, 106.83 Athens, Greece
TEL:(+30)210-3809-605,606,607,608
FAX: (+30) 210-3845-755, 210-3827-868
Email: bon@bonstudio.qr
Web Site: http://www.bonstudio.gr
Hungary
NAME: Mega Audio GmbH
ADD: Stromberger Str. 32, 55411 Bingen, Germany
TEL: (+49) 6721-94330, FAX: (+49) 6721-32046
Email: info@megaaudio.de
Web Site: http://www.megaaudio.de
Italy
NAME: Backline S.u.r.l.
Email: info@backline.it
Web Site: http://www.backline.it
Italy
NAME: Art of Music sas (Hi-Fi system & Speaker Components)
ADD: Via Dal Lino 23/2, 40134 Bologna, Italy
TEL:(+39)3472532215
Email: artofmusic@libero.it
Web Site: http://www.balloacoustics.it
The Netherlands
NAME: lemke Roos Audio B.V.
ADD: Kuiperbergweg 20, 1101 AG Amsterdam, The Netherlands
TEL: (+31) 20-697-2121, FAX: (+31) 20-697-4201
Email: sales@iemkeroos.nl
Web Site: http://www.iemkeroos.nl
Norway
NAME: Siv. Ing. Benum AS
ADD: P. O. Box 145, Vinderen, 0319 Oslo, Norway
TEL: (+47) 2213 9900, FAX: (+47) 2214 8259
NAME: Letusa (Pro Audio Products Only)
ADD: C/Laguna No.10, Poligono Industrial Urtinsa, 28923 Alcorcon,
Madrid, Spain
TEL: (+34) 91-4862800, FAX: (+34) 91-6414597
Email: info@letusa.es
Web Site: http://www.letusa.es
Russia
NAME: MS-MAX
ADD: Entrance 12B, Kutuzovsky prospekt, 30/32, 121165, Moscow,
Russia
TEL: (+7) 495-234-0006, FAX: (+7) 495-249-8034
Email: office@ms-max.ru
Web Site: http://www.ms-max.ru
Spain & Portugal
NAME: ATCONSUMER (Consumer, Hi-Fi system & Speaker Components)
ADD: PO BOX 15, 08340Vilassar de Mar, Barcelona, Spain
TEL:(+34)609288310
Email: info@atconsumer.es
Web Site: http://www.atconsumer.es
Spain
NAME: Letusa (Pro Audio Products Only)
ADD: C/Laquna No.10, Poligono Industrial Urtinsa, 28923 Alcorcon,
Madrid, Spain
TEL: (+34) 91-4862800, FAX: (+34) 91-6414597
Email: info@letusa.es
Web Site: http://www.letusa.es
Sweden
NAME: Benum Nordic AS
ADD: Aldermansvagen 17, 171 48 Solna, Sweden
TEL:(+46)8207710
Email: sweden@benum.com
Web Site: http://www.benum.se
Sweden, Norway, Finland & Denmark
NAME: Supersonic Svenska AB (Speaker Components Only)
ADD: PO BOX 42043, 126 12 Stockholm, Sweden
TEL:(+46)87444700
Email: johan@supersonic.se
Switzerland
NAME: Audio Bauer Pro AG
ADD: Bernerstrasse-Nord 182, CH-8064 Zurich, Switzerland
TEL:(+41)44 432 3230,FAX:(+41)44 432 6558
Email: info@audio-bauerpro.ch
Web Site: http://www.audio-bauerpro.ch
Turkey
NAME: Radikal Elektronik Ltd. Sti.
ADD: Ihlamur-Yildiz Cad, Kessaf Sok. 4/12 Besiktas, Istanbul 34353,
Turkey
TEL: (+90) (212) 259 7971, FAX: (+90) (212) 259 7993
Email: radikal@radikaltr.com
Web Site: http://www.radikaltr.com
UK
NAME: SCV London
ADD: Unit C1 Belcon Industrial Estate, Geddings Road, Hodesdon,
Hertfordshire, EN11 ONT, UK
TEL:(+44)03 301 222500, FAX:(+44)20-8418-0624
Email: fostex@scvlondon.co.uk
Web Site: http://www.scvLondon.co.uk
Ukraine
NAME: A & T Trade Petroshop
ADD: 29, Obolonskaya Str., Kiev, Ukraine 04071
TEL:(+380)44-462-5358,FAX:(+380)44-462-5092
Email:attrade@attrade.kiev.ua
Web Site: http://kiev.attrade.ru