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  5. Installation And Operation Manual

Hafler 9303 Installation And Operation Manual

Manual is about: Professional

Summary of 9303

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    ® made usa in the professional power amplifier 9 3 0 3 / 9 5 0 5 installation & operation professional power ampl nova trans ®.

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    N o t i c e - i m p o r t a n t s a f e t y i n f o r m a t i o n c a u t i o n risk of electric shock do not open ! ! Warning: to prevent fire or shock hazard, do not expose this equipment to rain or moisture. 1. Read instructions all the safety and operating instructions of your hafler equipment s...

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    P e r f o r m a n c e s p e c i f i c a t i o n s 9303/9505 full power bandwidth: 0.15hz to 300khz signal-to-noise: >100db “a” weighted slew rate: 150 v/ µ s cmrr: 75db at 1khz gain: +29db max. 9303 power rating: 150 wpc @8 Ω , 225 wpc @ 4 Ω , 450 watts mono @ 8 Ω distortion: 0.07% thd 20-20hz, typi...

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    T a b l e o f c o n t e n t s safety precautions ........................................................................................................................................... I performance specifications .....................................................................................

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    I n t r o d u c t i o n – 1 – the hafler 9303 and 9505 are two channel professional power amplifiers. Passive cooling with large heatsinks is used for low mechanical noise. Our patented trans•nova circuit topology and mosfet output stage ensures trouble free, long term operation and is backed by our...

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    – 2 – input the 9303 and 9505 have input jacks for both balanced and unbalanced input signals. The unbalanced inputs use conventional rca phono jacks. When using the rca inputs, the rear panel balanced/unbalanced switch must be set to the unbalanced position. The balanced input jacks are dual functi...

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    – 3 – o p e r a t i o n power switch the power switch is located on the front panel of the amplifier. An internal lamp indicates when it is turned on. Standard practice is to turn the amplifier on last and off first when switching components individually to prevent sending damaging transients, gener...

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    – 4 – s c h e m a t i c d i a g r a m notes: unless specified otherwise 1. All resistors in ohms 2. All capacitors in microfarads 3. Component designators: 1-99: left channel 101-199: right channel 201-299: common parts 301-399: chassis/power supply 4. Left channel only shown 5. Stereo/mono switch s...

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    – 5 –.

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    – 6 – p c b o a r d l a y o u t.

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    – 7 – p a r t s l i s t designator value part # r213 220, 1/4w, 5% rm/4-221c r214 220, 1/4w, 5% rm/4-221c r215 10k, 1/4w, 5% rm/4-103c p1, p101 200, trim pot rvh-201 p2, p202 200 trim pot rvh-201 d1, d101 bav99l ss-260sm d2, d102 bav99l ss-260sm d3, d103 bav99l ss-260sm d4, d104 bav99l ss-260sm d5, ...

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    – 8 – designator value part # q8, q108 mmbt5087l ss-0115 q10, q110 mmbt5088l ss-0114 q11, q111 mmbt5087l ss-0115 q12, q112 mmbt5088l ss-0114 q13, q113 mmbt5087l ss-0115 q14, q114 mps-a56 ss-101a q15, q115 mps-a56 ss-101a q16, q116 mps-a06 ss-102a q17, q117 mps-a06 ss-102a q45, q145 2sk1058 ssh-741t ...

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    T e c h n i c a l r e f e r e n c e theory and operation of trans• nova the (transconductance nodal voltage amplifier) principle is based on our 1984 u.S. Patent 4,467,288. This patent describes the advantages of audio power amplifiers in which a mosfet output stage is connected in a grounded source...

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    – 10 – the final output stage utilizes lateral mosfets; four pairs are used for each channel in the 9505 and three pairs in the 9303. These devices, unlike conventional bipolar transistors do not exhibit “thermal runaway.” thermal runaway is a phenomenon whereby a transistor heats up as it draws mor...

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    S e r v i c e p o l i c y a n d l i m i t e d w a r r a n t y if you encounter any difficulty or have any question concerning your 9303 and 9505 amplifier, please call our technical support department weekdays, 8:00 a.M. To 3:30 p.M., mountain standard time, at 800-795-2385. Should you have any doub...

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    Man-0587-d 4/95 hafler professional a division of rockford corproation 546 south rockford drive tempe, arizona 85281 u.S.A. In u.S.A. (602) 967-3565 in europe, fax (49) 4207-801250 in japan, fax (81) 559-79-01265.