Instruction/ maintenance manual of the product A25 Samson
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Hartke Hartke Hartke INPUT VOLUME POWER PHONES LIMITER BRIGHT TREBLE MID BASS CD -12 -9 -6 -3 0 +3 +6 +9 +12 -15 +15 100Hz -12 -9 -6 -3 0 +3 +6 +9 +12 -15 +15 830Hz -12 -9 -6 -3 0 +3 +6 +9 +12 -15 +15.
Important Safety Instructions 1. Please read all instructions before operating the unit. 2. Keep these instructions for future reference. 3. Please heed all safety warnings. 4. Follow manufacturers instructions. 5. Do not use this unit near water or moisture.
T able of C onten ts Introduction 2 A SERIES Combo Bass Amplifier Features 3 Guided Tour Front Panel 4-5 Rear Panel 6 Setting Up and Using Your Hartke A Series Combo Bass Amplifier 7-8 Using the CD Input 9 Using Equalization 10 -11 Specifications 12 Copyright 2003, Samson Technologies Corp.
Introduction We know you don’t like reading owners manuals, but you’ve just purchased one of the finest bass amplifiers around, and we want to tell you about it! So, before you plug in and start popping and slapping, we’d like to suggest you take just a few moments out to scan these pages.
3 Har tke A25 and A35 Combo Bass Amplifier F eatures The Hartke A Series offers all the newest concepts in state-of-the-art aluminum drive bass amplification in an extremely compact size and affordable price.
4 Guided T our - F ront P anel 1. Input - Connect your bass guitar to this standard 1/4" unbalanced jack. The A Series Input was is designed to handle low-level signals if your bass has passive e.
5 Guided T our - F ront P anel 6. Bright - This control provides approximately 20 db of boost at 8 kHz, with a peak (bell) curve. When the knob is at the 12 o’clock (“0”) position, there is no boost or attenuation (that is, flat response).
6 A. AC Power Inlet - Use the supplied grounded AC power cord to connect your A Series amplifier to mains power. This cord comes supplied with the appropriate plug for your geographic area. CAUTION: Do not use an adapter to defeat the third grounding pin on this plug or severe electric shock may result! B.
7 Setting Up and Using Y our Har tke A SERIES Combo Bass Amplifier Setting up your Hartke Systems A Series Combo Bass Amplifier is a simple procedure which takes only a few minutes: 1. Remove all packing materials (save them in case of need for future service) and decide where the amplifier is to be physically placed.
8 Setting Up and Using Y our Har tke A SERIES Combo Bass Amplifier when no compression is being applied, will go out whenev- er small amounts of compression are being applied and will flash or light steadily red when limiting (severe com- pression) is being applied.
9 Your A series amplifier features a CD input which you can use with a portable CD player, cassette, mini disk or MP3 player to jam with pre-recorded tracks or learn a riff from a favorite tune. In fact, you can plug any line level signal into the CD input including the signal from a keyboard or drum machine.
10 Using Equalization The Hartke Systems A Series Bass Amplifier gives you enormous control over shaping the sound of your bass, using a process called equalization . To understand how this works, it’s important to know that every naturally occurring sound consists of a broad range of pitches, or frequencies , combined together in a unique way.
11 The specific EQ you will apply to your bass signal is very much dependent upon your par- ticular instrument and personal taste and playing style. However, here are a few general suggestions: • For that super-deep reggae or Motown sound, boost the Bass EQ slightly while attenuating the Treble EQ.
12 1. Rated Output Power (@ 1 kHz, 4 ohm, 1% THD) A25 25 w A35 35 w 2. Rated Input Level (@ 1 kHz) Input 1 -20 dBu Input 2 -10 dBu 3. Total Harmonic Distortion (@ 1 dB below rated output, 1 kHz typical) A25 0.2% A35 0.3% 4. Signal To Noise Ratio (re: 1 Wrms @ 1 kHz) A25 67 dB A35 60 dB 5.
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Hartke is distributed world-wide by SamsonTechnologies Samson Technologies Corp. 575 Underhill Blvd. P.O. Box 9031 Syosset, NY 11791-9031 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 516-364-3888 www.
An important point after buying a device Samson A25 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Samson A25 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Samson A25 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Samson A25 you will learn all the available features of the product, as well as information on its operation. The information that you get Samson A25 will certainly help you make a decision on the purchase.
If you already are a holder of Samson A25, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Samson A25.
However, one of the most important roles played by the user manual is to help in solving problems with Samson A25. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Samson A25 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
