Fostex 6301NB - 4" Active Monitor Speaker 25W D-Class (Single)

Special Price $249.99 Regular Price $279.99
Ships in 10-14 business days

$0.00 Tax Outside NJ


  • 1/4" TS Unbalanced Input
  • Compact Design
  • 4" Driver
  • 25W D-Class Amplifier
  • Rotary Level Control
  • Magnetically Shielded
  • Multi-Voltage Power Supply
  • Auto Standby Mode: Draws 0.5W
  • Optional Mounting Bracket Available
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The 6301NB from Fostex is a compact monitor speaker for use in professional mobile, project, or home studios and features a single 1/4" unbalanced input and a 4" full-range driver powered by an integrated 25W D-class amplifier.

The front panel provides a power switch and a rotary level control for easy volume adjustments. An automated protection circuitry prevents overloads and short circuits, while the die-cast aluminum enclosure is made to withstand the rigors of professional use. The 6301NB ships with a standard IEC power cord.

  • Compact aluminum design
  • 4" full-range driver
  • 25W Class-D amplifier for powerful performance
  • 1/4" input connector
  • Front-panel rotary volume control
  • Protection circuitry keeps the speaker operating smoothly
  • Magnetically shielded for safe use near video monitors
  • Multi-voltage power supply
  • Auto Standby Mode engages after 25 minutes, power consumption reduced to 0.5W
  • Optional bracket available separately for mounting


More Information
Stock StatusShips in 10-14 business days
Mfr Part NoAMS-6301NB
Upc Number636827305105


Sealed powered speaker system


Cone Type Driver: 4" / 102mm


25 W Class-D

Frequency Range

70 Hz to 15 kHz

Output Sound Pressure Level

85 dB/W @ 1 m

Maximum Output

Maximum SPL: 98 dB

Rated Output

20 W


0.05% (at 1 kHz 1 W output)

Input Terminal

Input: 1/4" TS, unbalanced

Input Impedance

Analog Input: 10 kOhms or More

Input Sensitivity

Analog (Unbalanced): -14 dBV (0.2 VRMS)

Residual Noise

−70 dBV


1 x Power switch
1 x Volume control

Indicator LEDs

Unlit: Power off Lit In Green: Power on Lit In Red: In standby

Enclosure Material

Aluminum die-casting



Power Consumption

Power Consumption: 10 W
Auto Standby: 0.5W

Dimensions (HxWxD)

7.4 x 4.7 x 4.7" / 189 x 120 x 120mm


4.9 lb / 2.2 kg


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