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Owner’s Manual
Model
AP1020/AP2090/AP2130
STEREO POWER AMPLIFIER
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CAUTION: CAUTION TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, FICHE DANS LA BORNE CORRESPONDANTE DE DO NOT REMOVE COVER (OR BACK). LA PRISE ET POUSSER JUSQU AU FOND. NO USER - SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lighting flash with arrowhead symbol, w
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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)..................................2 Controls and Connections (Model AP1020)..............................................3 Outstanding features.....................
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AP2090/AP2130 FRONT PANEL REAR PANEL 10. Input connector 1. Power switch 11. Crossover mode (VR) 2. Power indicator 12. Crossover mode (Selector) 3. Output level controller 13. MONO/STEREP selector SW 4. Output level indicator 14. Crossover network output 5. Clip indicator (HIGH) 6. Thermal indicator 15. Crossover network output 7. Compressor / limiter indicator (LOW) 8. Handle 16. COMP/L switch 9. Filter cover 17. Speaker output 18. Cooling fa
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AP1020 FRONT PANEL REAR PANEL 1. Power switch 10. AC (Input) 2. Power indicator 11. MONO/STEREO switch 3. Output level controller 12. Fuse 4. Output level indicator 13. Cooling fan 5. Clip indicator 14. Compressor / limiter switch 6. Thermal indicator 15. Input connector 7. Compressor / limiter indicator 16. Output connector CH-1 8. Handle 17. " " CH-2 9. Filter cover —3—
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OUTSTANDING FEATURES 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 lit at overload. It will flash on large instant- aneous inputs but will not pose any problems. 4) Thermal indicator
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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) HIGH When this position is selected, the HIGH PASS signal whose cutoff frequency is set by the (Hz) knob, i
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MULTI-AMPLIFIER SYSTEM EXAMPLE USUNG AP2090/2130 [Example of 2 way system] AMP (HIGH P 1 ASS AMP) INPUT FULL INPUT H.SP HIGH H LOW L HIGH OUT LOW OUT 2 AMP (LOW PASS AMP) INPUT FULL L.SP HIGH H LOW L HIGH OUT LOW OUT [Example of 3 way system] AMP (HIGH P 1 ASS AMP) INPUT FULL H.SP HIGH H LOW L HIGH OUT LOW OUT AMP (BAND P 2 ASS AMP) INPUT FULL M.SP HIGH H LOW L HIGH OUT LOW OUT 3 AMP (LOW PASS AMP) FULL INPUT L.SP HIGH H LOW L HIGH OUT LOW OUT —6—
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* 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 connected, always set to HIGH PASS (crossover network selector switch to HIGH) and crossover frequency to 100Hz. The speaker low regio
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SPECIFICATIONS AP1020 AP2090 AP2130 [AMPLIFIER SECTION] 75W+75W. . . . 8 Ω 300W+300W. . . 8 Ω 450W+450W. . . 8 Ω 100W+100W. . . 8 Ω 450W+450W. . . 4 Ω 650W+650W. . . 4 Ω Rated output 200W(mono). . . 8 Ω 900W(mono). . . 8 Ω 1300W(mono). . 8 Ω Total harmonic Less than Less than Less than distortion 0.05% 0.05% 0.05% (At 1kHz rated output) 10 ~ 35,000Hz 10 ~ 35,000Hz 10 ~ 35,000Hz Reproduce (At rated out- (At rated out- (At rated out- frequnecy put, +0dB, put, +0dB, put, +0dB, range -1dB) -1dB) -
