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PJB P-1 Owner's Manual

Bass instrument pre amplfier
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PJB P-1
BASS INSTRUMENT
PRE AMPLFIER
OWNER'S MANUAL
0

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Summary of Contents for PJB P-1

  • Page 1 PJB P-1 BASS INSTRUMENT PRE AMPLFIER OWNER’S MANUAL...

  • Page 2: Table Of Contents

    CONTENTS Read This First ------------------------------------------------------------Page 2 Overview of the P-1-------------------------------------------------------Page 3 Front & Back Panel Overview ------------------------------------------Page 4 SETTING UP EQ----------------------------------------------------------Page 8 SETTING UP LIMITER-------------------------------------------------Page 10 Transporting & Storing the P-1-----------------------------------------Page 10 Specifications---------------------------------------------------------------Page 11 Simplified Schematic------------------------------------------------------Page 12 Service/Warranty Information-----------------------------------------Page 13...

  • Page 3: Read This First

    If any damage is visible contact your dealer. • Keep all original packing. • Never use this product in the vicinity of water. If the P-1 were to get wet, it could kill you by electrocution. • Do not locate this pre-amplifier near any heat source.

  • Page 4: Overview Of The

    Our design goal of the P-1 was to make it totally transparent in sound and have absolute silence between notes. When the EQ circuits are not engaged or set to be “flat”, the P-1 will give an exact representation of your instrument at the input. In other words the P-1 is a flat response pre amplifier.

  • Page 5: Front & Back Panel Overview

    FRONT AND BACK PANEL OVERVIEW PASSIVE INPUT LEVEL GRAPHIC BALANCED PRE EQ 25Hz 40Hz 63Hz 100Hz 160Hz 250Hz 400Hz 630Hz 1KHz 1.6KHz 2.5KHz 4KHz 6.3KHz 10KHz 16KHz -25dB -20dB -15dB -10dB -5dB -2dB POWER POWER +18dB +18dB P - 1 POST EQ LIMITER BASS...
  • Page 6 This will light up blue when you are going through the EQ. 8. XLR- DIRECT OUTPUT PRE/POST EQ SWITCH. This switch allows you to use the P-1 EQ or bypass EQ to suit requirements of recording or sound reinforcement application. This switch controls output of front and rear panel XLR direct outputs.
  • Page 7 22. IEC POWER INPUT SOCKET. Connects the P-1 to AC power supply. Always use a grounded plug and make sure the AC cable is more than 5A rating at 250volt AC since this will have a lower grounding resistance and therefore better signal to noise ratio.
  • Page 8 38. FX RETURN INPUT JACK. This jack accepts the signal from an effects processing unit. Plugging this jack in only will disrupt the signal path in the P-1. 39. EXTERNAL VOLUME CONTROL SOCKET. This is a feature whereas you can control the amplifier output by means of the external foot volume pedal.

  • Page 9: Setting Up Eq

    SETTING UP PRE EQ (PARAMETRIC) Turn on the parametric EQ switch (18). The blue light next to it will light up. Have the 3 level controls (15-16-17) adjusted so they are all centered. Switching the EQ in and out now will have no effect. Start with adjusting the mid frequency level control (16) and mid frequency control (4).
  • Page 10 The Graphic EQ. This is a 15 band EQ that covers the full spectrum of a bass and beyond. This is used to fine-tune your bass tone to perfection. Often playing in different venues will cause your bass to sound different. This is partially due to the acoustics of the hall influencing the low frequency waves that are coming from your speaker.

  • Page 11: Setting Up Limiter

    TAKING CARE OF YOUR P-1 The P-1 will give years and probably decades of reliable service if it is cared for. The P-1 was built to be as rugged as possible. However you should handle it with care. Keep it away from moisture, heat and dust.

  • Page 12: Specifications

    SPECIFICATIONS Frequency Response: 18Hz-22kHz +/-1dB Signal to Noise: Better than 100dB Distortion: Less than 0.01% Maximum Output: 5 Volts RMS Input Impedance Passive: 4.7M Ohm Input Impedance Active: 100K Ohm XLR Balance Output Impedance: 200 Ohms Parametric EQ: +/-15 dB at 30-200Hz, 300-2kHz, and 3kHz-15kHz Graphic EQ: +/-18dB at 25,40, 63, 100, 160, 250, 400, 630,1K, 1.6K, 2.5K, 4K, 6.3K, 10K and 16kHz.

  • Page 14: Service/Warranty Information

    PDF files. WARRANTY INFORMATION The P-1 has a warranty period of 5 years, starting from the date of purchase. The buyer must complete and return the enclosed warranty card within 14 days of purchase.

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