Hafler Trans Nova P7000 Скачать руководство пользователя страница 21

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To calculate the resistor value for a frequency not on the chart use the following:

3386

= R (in k

Ω

) for .047

f cap

= R (in k

Ω

) for .022

f cap

7234

Where: R =

Ω

fo = desired crossover frequency

c = capacitor in farads
ex: .047 x 10-6 for .047mf cap

The actual formula is: R =

foc

Butterworth Alignment Q = .707

1% resistors used with 0.047

F capacitors

Butterworth Alignment Q = .707

1% resistors used with 0.022

F capacitors

Frequency

20Hz

357k

Ω

357k

Ω

25Hz

287k

Ω

287k

Ω

30Hz

237k

Ω

237k

Ω

35Hz

205k

Ω

205k

Ω

40Hz

178k

Ω

178k

Ω

45Hz

162k

Ω

162k

Ω

50Hz

143k

Ω

143k

Ω

55Hz

130k

Ω

130k

Ω

60Hz

121k

Ω

121k

Ω

65Hz

110k

Ω

110k

Ω

70Hz

102k

Ω

102k

Ω

75Hz

95.3k

Ω

95.3k

Ω

80Hz

90.9k

Ω

90.9k

Ω

85Hz

84.5k

Ω

84.5k

Ω

90Hz

80.6k

Ω

80.6k

Ω

200Hz

35.7k

Ω

35.7k

Ω

300Hz

23.7k

Ω

23.7k

Ω

400Hz

17.8k

Ω

17.8k

Ω

500Hz

14.3k

Ω

14.3k

Ω

600Hz

12.1k

Ω

12.1k

Ω

700Hz

10.2k

Ω

10.2k

Ω

800Hz

9.9k

Ω

9.9k

Ω

900Hz

8.6k

Ω

8.6k

Ω

1kHz

7.15k

Ω

7.15k

Ω

1.2kHz

6.04k

Ω

6.04k

Ω

2.0kHz

3.57k

Ω

3.57k

Ω

3.0kHz

2.37k

Ω

2.37k

Ω

4.0kHz

1.76k

Ω

1.76k

Ω

5.0kHz

1.43k

Ω

1.43k

Ω

6.0kHz

1.21k

Ω

1.21k

Ω

7.0kHz

1.02k

Ω

1.02k

Ω

8.0kHz

909

Ω

909

Ω

– 18 –

Frequency

20Hz

169k

Ω

169k

Ω

25Hz

133k

Ω

133k

Ω

30Hz

110k

Ω

110k

Ω

35Hz

95.3k

Ω

95.3

Ω

40Hz

84.5k

Ω

84.5k

Ω

45Hz

75k

Ω

75k

Ω

50Hz

68.1k

Ω

68.1k

Ω

55Hz

61.9k

Ω

61.9k

Ω

60Hz

56.2k

Ω

56.2k

Ω

65Hz

52.3k

Ω

52.3k

Ω

70Hz

48.7k

Ω

48.7k

Ω

75Hz

45.3k

Ω

45.3k

Ω

80Hz

42.2k

Ω

42.2k

Ω

84Hz

40.2k

Ω

40.2k

Ω

90Hz

37.4k

Ω

37.4k

Ω

200Hz

16.9k

Ω

16.9k

Ω

300Hz

11.3k

Ω

11.3k

Ω

400Hz

8.45k

Ω

8.45k

Ω

500Hz

6.65k

Ω

6.65k

Ω

600Hz

5.62k

Ω

5.62k

Ω

700Hz

4.75k

Ω

4.75k

Ω

800Hz

4.22k

Ω

4.22k

Ω

900Hz

3.74k

Ω

3.74k

Ω

1kHz

3.40k

Ω

3.40k

Ω

1.2kHz

2.8k

Ω

2.8k

Ω

2kHz

1.69k

Ω

1.69k

Ω

3kHz

1.10k

Ω

1.10k

Ω

4kHz

845

Ω

845

Ω

5kHz

665

Ω

665

Ω

6kHz

562

Ω

562

Ω

7kHz

487

Ω

487

Ω

8kHz

422

Ω

422

Ω

RESISTOR CHART

The following charts list the resistor values to use for common crossover frequencies.

Содержание Trans Nova P7000

Страница 1: ... PROFESSIONAL POWER AMPLIFIER P7000 Installation Operation PROFESSIONAL POWER AMPL nova trans DESIGNED AND ASSEMBLED IN THE U SA ...

Страница 2: ...connected equip ment Furthermore extensioncordsorpowerstripsmustprovide the same three wire grounded connection It is important that the blades of the equipment s plug be able to fully insert into the matingreceptacle Neverremovetheroundgroundingpinonthe plug in an attempt to mate to a two wire ungrounded receptacle use a grounding adaptor with the grounding tab or wire suitably connected to earth...

Страница 3: ...4Ω Gain 15dB min 30 max CMRR 75dB at 1kHz Damping Factor 600 to 1kHz 200 to 10kHz 25 to 100kHz Power Consumption 275 VA quiescent 1440 VA with both channels driven at 350 watts at 8Ω 1800 VA maximum Controls Switches Front Panel Power switch Normal Bridged mode switch level controls Rear Panel Chassis Float ground switch Stereo Bi amp selector switch Crossover Variable high pass low pass and bandp...

Страница 4: ...ch 4 Level Controls 4 XCard Crossovers 4 Ground Switch 5 Short Circuit Protection 5 LED Indicators 5 Warm Up 5 Cleaning and Maintenance 5 TECHNICAL REFERENCE Field Service Considerations 6 Theory and Operation of trans nova 6 PC Board Layout 7 Schematic Diagram 8 Parts List 10 P7000 Functional Block Diagram 12 Circuit Operation 13 Amplifier Module Replacement 16 Building Custom XCards 17 Resistor ...

Страница 5: ...r to drive reactive speaker loads without the performance and sound penalties imposed by elaborate Safe Operating Area protection schemes Active crossovers are incorporated at the input of the amplifier These crossovers are controlled through the use of our XCard plug in modules Each XCard can operate as a full range high pass or low pass filter with a 12dB per octave Butterworth alignment Each ch...

Страница 6: ... in the parts list INPUT The input jacks used on the P7000 are dual function connectors which accept 1 4 Tip Ring Sleeve phone and XLR plugs The amplifier will operate with either a balanced or unbalanced signal source The connector pin out is printed on the rear panel of the amplifier Balanced Input 1 4 Tip Ring Sleeve The 1 4 balanced input jack is connected according to conventional usage with ...

Страница 7: ... With the switch set for STEREO Channel 1 and Channel 2 require separate input signal source feeds When the switch is set for BI AMP the Channel 1 input feeds the signal to both amplifier channels for dual mono operation The level control and XCard for each channel are still active Bridged Mono In systems with higher power requirements the P7000 can be configured for signal channel bridged mono op...

Страница 8: ...osition the Channel 1 and inputs are connected to Channel 2 in reversed polarity which inverts the Channel 2 output Only the Channel 1 input is used and the speaker is connected to the two RED binding posts The amplifier gain is adjusted by the Channel 1 level control the Channel 2 control is not active Because of thermal considerations we do not recommend using less than a nominal eight ohm load ...

Страница 9: ... off then back on to reset the short detector LED INDICATORS Amplifier operation is monitored internally and each channel has four status LEDs These indicators can be used for system troubleshooting in case of aberrant behavior Signal Monitors the amplifier output and lights when a signal is present The SIGNAL indicator is calibrated to activate an equivalent input voltage of 30mV with the amplifi...

Страница 10: ...conventional follower connection using the same MOSFET devices This increase in efficiency allows the use of a much simpler input section than in the more common high voltage designs The number of serial stages from input to output can be reduced from five or more to only three This also allows the input section tobedesignedwiththecriteriaofhighqualityClassAlineampwiththecharacteristichighlinearit...

Страница 11: ... 7 PC BO A R D LA Y O U T ...

Страница 12: ......

Страница 13: ... CDS 104CCDB C16 0 1µF 50V CDS 104CCDB C17 0 1µF 50V CDS 104CCDB C18 0 1µF 50V CDS 104CCDB C19 0 1µF 50V CDS 104CCDB C20 0 1µF 50V CDS 104CCDB DESIGNATOR VALUE PART ALL RESISTORS IN OHMS R1 56 2k 1 4W 1 RMP 4 5622 03 R2 1k 1 4W 5 RM 4 102C R3 47k 1 4W 5 RM 4 473C R4 47k 1 4W 5 RM 4 473C R5 1k 1 4W 5 RM 4 102C R6 280 1 4W 1 RM 4 2800C R7 2 15k 1 4W 1 RM 4 2151C R8 200 Trim Pot RVH 201 R9 2 26k 1 4W...

Страница 14: ...Channel MOSFET SS 0961 069 Q33 N Channel MOSFET SS 0961 069 Q40 P Channel MOSFET SS 0962 069 Q41 P Channel MOSFET SS 0962 069 Q42 P Channel MOSFET SS 0962 069 Q43 P Channel MOSFET SS 0962 069 Q103 MMBT5088L SS 0114 Q104 MMBT5087L SS 0115 Q105 MMBT5087L SS 0115 BR1 Bridge Rectifier SSH 609 CR1 LED Red SS 741 CR2 LED Red SS 741 CR3 LED Red SS 741 CR4 LED Green SS 740 DESIGNATOR VALUE PART CR5 MMBD91...

Страница 15: ...t Integrator U2B C22 C21 R11 CMRR Adjust R8 Differential Amp Q6 Q7 Positive Input Buffer U1A XCard Crossover U7A Level Control R24 Input Buffer U2a Feedback Network Driver Cascode Q11 Q12 Output Q40 Q41 Q42 Q43 B 94V Output Local Feedback Bias Adjust R136 Driver Cascode Q9 Q10 Current Mirror Q104 Q105 DIABLO R73 CR16 Q17 Q18 Output Q30 Q31 Q32 Q33 B 94V 12 ...

Страница 16: ...rom the factory setting however if the amplifier is repaired and output devices have been changed or if the two channels of the amplifier do not run at the same temperature recalibrating the bias is necessary Disconnect the power to the amplifier before removing the cover To adjust the bias disconnect the input and speakers and remove the jumper JW7 Connect an amp meter across the exposed pins The...

Страница 17: ...s down that channel when a shorted output condition is detected Recovering from the Short protection requires turning the amplifier off to reset it The Clip Detectors U3A and U4B monitor the Drive Signal and change state when the drive signal level is sufficient to clip the output stage The output of U3A goes high when the drive signal exceeds the clip threshold and is connected to the input of U3...

Страница 18: ...LIP indicator is driven by the buffer U5C which is controlled by the comparator U5A The voltage divider R56 and R57 established the reference voltage for the clipping detector at pin 7 of U5A The reference voltage scales the output of U5A to indicate when the Drive Signal at pin 6 demands in excess of the available voltage or current of the outputstage TheoutputofU5AisstretchedbyR55andC30toprevent...

Страница 19: ...s two outside and one inside Remove the two 9 64 Allen screws on the bottom edge of the side of the amplifier Remove the Phillips screw located behind the level control which is accessible through the hole in the PC board The module can now be lifted from the chassis Prepare a new Channel 1 module for installation by setting the input mode switches to the default position according to the markings...

Страница 20: ...Butterworth aligned XCards each of which contains two resistors and two capacitors to control the crossover frequency The XCard will operate as either a high pass or low pass filter depending upon its orientation The following tools are needed to build the XCards Soldering Iron appropriate for PC board work Solder suitable for electronics Desoldering Braid Our tests have shown that for operating f...

Страница 21: ... 600Hz 12 1kΩ 12 1kΩ 700Hz 10 2kΩ 10 2kΩ 800Hz 9 9kΩ 9 9kΩ 900Hz 8 6kΩ 8 6kΩ 1kHz 7 15kΩ 7 15kΩ 1 2kHz 6 04kΩ 6 04kΩ 2 0kHz 3 57kΩ 3 57kΩ 3 0kHz 2 37kΩ 2 37kΩ 4 0kHz 1 76kΩ 1 76kΩ 5 0kHz 1 43kΩ 1 43kΩ 6 0kHz 1 21kΩ 1 21kΩ 7 0kHz 1 02kΩ 1 02kΩ 8 0kHz 909Ω 909Ω 18 Frequency R1 R2 20Hz 169kΩ 169kΩ 25Hz 133kΩ 133kΩ 30Hz 110kΩ 110kΩ 35Hz 95 3kΩ 95 3Ω 40Hz 84 5kΩ 84 5kΩ 45Hz 75kΩ 75kΩ 50Hz 68 1kΩ 68 1kΩ...

Страница 22: ...rom the date of purchase including parts labor and return shipping costs within the Continental United States Alaska and Hawaii This warranty applies only to products sold in the United States of America For warranties outside the U S A please contact your local agent It is the owner s responsibility to pay shipping preferably United Parcel Service UPS to the factory collect shipments will not be ...

Страница 23: ...9 95 HAFLER PROFESSIONAL A DIVISION OF ROCKFORD CORPORATION 546 SOUTH ROCKFORD DRIVE TEMPE ARIZONA 85281 U S A IN U S A 602 967 3565 IN CANADA 604 942 1001 IN EUROPE FAX 49 4207 801250 IN JAPAN FAX 81 559 79 01265 ...

Страница 24: ......

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Hafler Trans Nova P7000, Инструкция по установке и эксплуатации

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