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Table of Contents
Related Manuals for Prolude Amplification BHN450
Summary of Contents for Prolude Amplification BHN450
- Page 1 PROLUDE AMPLIFICATION BHV450 and BHV450L Bass amplifier User’s manual...
- Page 2 2—2...
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Page 3: Table Of Contents
Table of contents INTRODUCTION..........................2—4 ....................2—4 OME WORDS TO THE USTOMER ........................2—4 OME WORDS ABOUT ME SAFETY INSTRUCTIONS, WARNINGS ..................2—5 .........................2—5 ASIC PRECAUTIONS ....................2—5 ARNINGS USED ON THE EQUIPMENT ......................2—5 ROUNDING INSTRUCTIONS ..............2—5 MARK FOR UROPEAN HARMONISED STANDARDS SPECIFICATIONS..........................3—6 INFORMATION FOR INSTALLING ....................4—7 CONTROLS AND FUNCTIONS .......................5—8 ..........................5—8 HE FRONT PANEL... -
Page 4: Introduction
1.1 Some words to the Customer Welcome to the club of Prolude Amplification owners! It is my pleasure to have you as a member in this small team of people who have taken notice of my handwork and intellectual product, and finally have voted for it. -
Page 5: Safety Instructions, Warnings
2 Safety instructions, warnings 2.1 Basic precautions WARNING - When using electrical products, basic precautions should be followed, including the following: Read all the instructions before using the product. Do not use this product near water – for example, near a bathtub, washbowl, kitchen sink, in a wet basement or near a swimming pool. -
Page 6: Specifications
3 Specifications Type BHV450 Description Bass amplifier Mains voltage 230VAC 50Hz Mains connecting device Standard mains cord Inrush current limiter BHV450: Conventional 700VA toroid transformer Power supply BHV450L: Resonant switching mode Power consumption 700W Output power 450W @4Ohms /100Hz continous sine/ 280W @8Ohms Minimal load impedance 4Ohms... -
Page 7: Information For Installing
4 Information for installing At high power level it is neccesarry to consider the wiring between the amplifier and speaker cabinets. In most cases the amplifier is placed on top of the speaker cabinet, therefore a very short speaker cable can be used for connecting the two. -
Page 8: Controls And Functions
5 Controls and functions 5.1 The front panel 5.1.1 Active Input jack for active instruments. 5.1.2 Passive Input jack for passive instruments Note: There is no significant difference between the two inputs other than the input impedance and sensitivity. The passive instruments and the preamplifierless piezo pickups „prefer”... -
Page 9: Noise Gate
5.1.7 Noise Gate Automaticly softens down the amplifier during the pauses of your performance. Eliminates hum, buzz or single coil noise, which are audible when you stop playing. You can adjust the treshold with the potentiometer. The sounds below this treshold are recognized as noise and soften down. Setting the treshold: 1. - Page 10 5.1.14 Line Out Balanced Line Out with Neutrik XLR connector. It gives a high quality line level signal to be used for PA or a recording system. The -15dB button reduces the signal level and the GND Lift button disconnects pin 1 of the XLR connector.
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Page 11: The Rear Panel
5.2 The rear panel 5.2.1 Mains The mains appliance inlet. You must use standard earthed mains cord. Important! This equipment should only be connected to 230VAC, 50Hz mains network! The mains plug must be plugged into an appropriate outlet that is properly installed and grounded! 5.2.2 FX Loop Insert your effects between these jacks. -
Page 12: Block Diagram
5.3 Block diagram Phantom FS1: Shape / Valve Loop power Low, Low-Mid, Mid- Bright Gain freq, Mid, High Shape Bass, Treble, On Active Input Preamp Shape Valve Active Eq. Active 2 Send Loop stage Passive Limiter Mute Volume Return Speaker Comp. - Page 13 5.4.4 Overheat protection Due to insufficient ventilation, ventilator fault or too high environment temperature while playing at high volume, overheating may occur. In such a case the protection circuit detaches the speaker cabinets until the temperature of the power stage cools down. This is being displayed by the Mute LED. 5.4.5 Ventilator control The control of the cooling ventilator is based on the temperature of the power stage’s heatsink.
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Page 14: Maintenance, Cleaning
6 Maintenance, cleaning The amplifier has no need for particular maintenance. Occasionally check the starting of the ventilator when you switch on the amplifier! The preamplifier valve is a long life type, probably you will never have to replace it because of aging. However, if you feel you are losing sound quality you can easily check it by switching on and off the Valve Loop. - Page 15 6—15...