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Fostex AP2090 manual

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Table of contents for the manual

  • Page 1

    Owner ’ s Manual AP1020/AP2090/AP2130 Model STEREO POWER AMPLIFIER[...]

  • Page 2

    Read Instructions - All the safety and operating instructions should be read before the appliance is operated. Retain Instructions - The safety and operating instructions should be retained for future reference. Heed W arnings - All warnings on the appliance and in the operating instructions should be adhered to. Follow Instructions - All operating[...]

  • Page 3

    INTRODUCTION Fostex new AP Series amplifiers AP1020, AP1020, AP2090 and AP2130 are designed to withstand severe operating conditions. It is a commercial use amplifier containing high technology citcuits designed for stability , durability , small size and large output. Contents Controls and connections (Model AP2090/AP2130).........................[...]

  • Page 4

    AP2090/AP2130 FRONT P ANEL REAR P ANEL 1. Power switch 2. Power indicator 3. Output level controller 4. Output level indicator 5. Clip indicator 6. Thermal indicator 7. Compressor / limiter indicator 8. Handle 9. Filter cover 10. Input connector 1 1. Crossover mode (VR) 12. Crossover mode (Selector) 13. MONO/STEREP selector SW 14. Crossover network[...]

  • Page 5

    AP1020 FRONT P ANEL REAR P ANEL 1. Power switch 2. Power indicator 3. Output level controller 4. Output level indicator 5. Clip indicator 6. Thermal indicator 7. Compressor / limiter indicator 8. Handle 9. Filter cover 10. AC (Input) 1 1. MONO/STEREO switch 12. Fuse 13. Cooling fan 14. Compressor / limiter switch 15. Input connector 16. Output conn[...]

  • Page 6

    OUTST ANDING FEA TURES 1) Forced cooling When the amplifier internal temperature rises, thee cooling fan automatically changes to high speed to force cool the heat sink for protecting the amplifier . 2) Level indicator (AP2090, AP2130) This LED is lit in 5dB steps over the 0 ~ - 30dB range to check the input signal. 3) Clip indicator This LED is li[...]

  • Page 7

    CROSSOVER NETWORK, SELECTOR SWITCH 1) FULL At this position, the crossover network is bypassed, (Hz) control pot becomes ineffective, a flat response output against the input signal is obtained at the output connec- tor . The crossover network outputs (HIGH, LOW) at each con- nector will be those set by the crossover frequency adjust- inig knobs. 2[...]

  • Page 8

    MUL TI-AMPLIFIER SYSTEM EXAMPLE USUNG AP2090/2130 [Example of 2 way system] [Example of 3 way system] —6— H L H L INPUT INPUT AMP (HIGH P ASS AMP) AMP (LOW P ASS AMP) 1 2 AMP (LOW P ASS AMP) 3 HIGH OUT LOW OUT HIGH OUT LOW OUT INPUT FULL HIGH LOW FULL HIGH LOW H.SP L.SP INPUT INPUT INPUT H L H L H L H.SP M.SP L.SP AMP (HIGH P ASS AMP) AMP (BAND[...]

  • Page 9

    * General use amplifiers not containing a crossover network can also be used for the low region or high region amplifier . When Ap20909/2130 are to be used as a full range amplifier , harmful sub-sonic frequencies can be cut off if the crossover network selector switch is set to HIGH and crossover frequency to 30Hz. If a line transformer is to be c[...]

  • Page 10

    SPECIFICA TIONS AP1020 AP2090 AP2130 [AMPLIFIER SECTION] Rated output 75W+75W . . . . 8 Ω 100W+100W . . . 8 Ω 200W(mono). . . 8 Ω 300W+300W . . . 8 Ω 450W+450W . . . 4 Ω 900W(mono). . . 8 Ω 450W+450W . . . 8 Ω 650W+650W . . . 4 Ω 1300W(mono). . 8 Ω To t a l harmonic distortion (At 1kHz rated output) Less than 0.05% Less than 0.05% Less tha[...]