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Phil Jones Bass M-500 Owner's Manual

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M-500
BASS INSTRUMENT
AMPLIFIER
OWNER'S MANUAL

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  • Page 1 M-500 BASS INSTRUMENT AMPLIFIER OWNER’S MANUAL...

  • Page 2: Table Of Contents

    CONTENTS Read First ------------------------------------------------------------------Page 2 General Overview & Introduction-------------------------------------Page 3 Protection Circuits--------------------------------------------------------Page 4 Front & Back Panel Overview-----------------------------------------Page 5 Front & Back Panel Description---------------------------------------Page 6 Getting Started------------------------------------------------------------Page 11 Power Graph---------------------------------------------------------------Page 15 Matching Speakers--------------------------------------------------------Page 16 Amplifier and Speaker Power------------------------------------------Page 17 Routine Care & Maintainance------------------------------------------Page 18 Service Information ------------------------------------------------------Page 18 Warranty information----------------------------------------------------Page 19 Specifications---------------------------------------------------------------Page 20...

  • 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 M-500 were to get wet, it could kill you by electrocution. • The output power of this amplifier can generate enough sound pressure levels from your speakers to cause PERMANENT hearing damage to you and anyone else who is close to it.

  • Page 4: General Overview & Introduction

    OVERVIEW THE M-500 Although the M-500 looks small, make no mistake about what it is. The M-500 is a high performance dedicated bass instrument amplifier. It not only has incredible power; but the sound quality is as good as or better than many so called high-end audio amplifiers used in expensive Hi-Fi systems or studio monitor systems.

  • Page 5: Protection Circuits

    Precision machined, solid aluminum control knobs and military grade toggle switches grace the front panel instead of cheap plastic ones. The M-500 is built with care and pride for truly dedicated bass players who seek the finest quality amplifiers to compliment their talents.

  • Page 6: Front & Back Panel Overview

    RESET LIFT OUTPUTS DANGER OF ELECTRIC SHOCK 110-120V 220-240V DISCONNECT POWER SUPPLY BEFORE REMOVING COVER GROUND NO USER SERVICEABLE AC INPUT 1000WATTS MAXIMUM FUSE PARTS INSIDE MAXIMUM LOAD 4 -- REFER TO MANUAL MODEL M-500 SERIAL NO. 000001 PRE-AMP OUT...

  • Page 7: Front & Back Panel Description

    Just as no two basses are alike, the same goes for players with different styles and technique. This is a fine-tuning adjustment (+/- 10dB) to get the precise match between your instrument and the M-500. 8. INPUT LEVEL INDICATOR. The LED will light up accordingly to the amount of input applied to the amplifier and therefore gives you the best signal to noise ratio and dynamic range.
  • Page 8 EQ. This combination will give an infinite number of tonal possibilities. Again care should be used in boosting of low frequencies. The M-500 although compact is a very powerful amplifier that is capable of sending large amount of low frequency power to your speakers.
  • Page 9 M-500. 26. POWER ON/OFF SWITCH. This switches the main power on and off in the amplifier. When the M-500 is switched on, there will be a slight delay while the protection circuits give the amplifier a “soft”...
  • Page 10 35. LOUDSPEAKER OUTPUTS (NEUTRIK SPEAKON CONNECTORS). The M-500 amplifier will work on any load from 16Ω down to 2Ω, which is the safe maximum load for this amplifier. The ‘Speakon’ sockets are in parallel so connecting two 8Ω...
  • Page 11 40. AMPLIFIER COOLING FAN OUTPUT. The M-500 has a dual speed fan that will change speed automatically in order to maintain a safe and reliable working temperature. It is designed to be virtually inaudible during operation. Never block the airflow output of this fan.

  • Page 12: Getting Started

    Matching the M-500 to PJB Piranha Loudspeakers The M-500 will work on loudspeakers from 16Ω to 3Ω with ease. It can also work down to a minimum load of 2Ω with its total output power of 700 watts. It is not recommended to run on 2Ω...
  • Page 13 Setting Up Pre EQ (Parametric). Turn on the parametric EQ switch (12). The blue light next to it will light up. Have the 3 level controls (15-17-19) adjusted so they are all centered. Switching the EQ in and out now will have no effect. Start with adjusting the level control (17) and frequency control (16).
  • Page 14 dimensions heavily influence them when the walls reflect the sound waves, causing them to collide by adding together or canceling each other out. This causes some fundamental notes (the ones you feel more than hear) to ring out louder than others and some note not to be heard at all.
  • Page 15 500 watts delivered into about 3Ω. Below is a chart of recommended speakers that are suited to the M-500. The red light will come on at these power levels indicated. This is not actually the full power that is available but the true power that is being delivered to the speakers.

  • Page 16: Power Graph

    Graph showing M-500’s Approximate Power into Various Impedance Loads. SPEAKERS IMPEDANCE APPROXIMATE POWER DELIVERED 12Ω 190 WATTS 8Ω 280 WATTS 16 Ω 160 WATTS 8 Ω 280 WATTS 8 Ω 280 WATTS 5.3 Ω 400 WATTS 6T & 9B 4.8Ω...

  • Page 17: Matching Speakers

    Although the M-500 can work on speaker loads down to 2Ω, it is not advisable to do so on a continual basis at high power levels, since there is more heat generated. If the weather is hot, there may not be enough cooling from the internal fan so the amplifier could momentarily cut out as the amp’s heat protection circuits kick in.

  • Page 18: Amplifier And Speaker Power

    A cheap amplifier may be designed to last a few years before it dies. It may cost more than its worth to give it an overhaul. In essence you get what you pay for. Your M-500 is built to last for a very long time running day after day at continuous high power levels.

  • Page 19: Routine Care & Maintainance

    All PJB owners manuals can be downloaded form our website in PDF files. Warranty information The M-500 has a warranty period of 2 years, starting from the date of purchase. The buyer must complete and return the enclosed warranty card within 14 days of purchase.
  • Page 20 PJB service center for repair or replacement. Phil Jones Bass 8559 Page Ave St. Louis, MO 63114. Tel: 314 814 1264 Fax: 314 628 9941 www.philjonesbass.com support@philjonesbass.com...

  • Page 21: Specifications

    SPECIFICATIONS Frequency Response Passive and Active input: 20Hz -20KHz +/- 1dB. Low Cut Filter: 24dB/Octave at 20Hz. High Cut Filter: 12dB/Octave at 20KHz. Line Input: 10Hz –40KHz +/- 2dB. Maximum Output Power (5% THD) LOAD Ω OUTPUT (Watts RMS) Signal to Noise Ratio Better than 80 dB (EQ off, Input-Gain on Full.
  • Page 22 EQ Section 1. Graphic EQ: 30, 40, 60, 100, 180, 340, 660, 1.3K, 2.6K, 5K, 10K, 15KHz at +/- 18dB Q Factor 0.7 2. Parametric EQ: 30-200Hz, 300-2KHz, 3KHz-15KHz at +/-15dB Q Factor Nominal 0.7 2 speeds. Slow: 12V continuous. Fast: 24V on at 60º C Heat sink Temp. Protection Circuits 1.
  • Page 23 Frequency Curve Line Input. Graphic EQ...
  • Page 24 Amplifier Output Power / Impedance Amplifier Output Voltage / Impedance...

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