AMPLIFIER Hartke Systems Hartke Systems 1400/1415
Introduction 3 Features 4 Guided Tour 5 Front Panel 5 Rear Panel 7 Setting Up and Using the Hartke 1400/1415 Bass Amplifier 8 About Equalization 10 Effect of the Contour Switch 12 About Compression 13 Specifications 14
Introduction Congratulations on purchasing the Hartke Systems Transient Attack® 1400/1415 Bass Amplifier! Although this device is designed for easy operation, we suggest you take some time out first to go through these pages so you can fully understand how we’ve implemented a number of unique features.
System Features The Hartke Systems Transient Attack® 1400/1415 Bass Amplifier offers all the newest concepts in state-of-the-art bass amplification. Here are some of its main features: • Power to spare—a full 140 watts into 4 ohms. • Bipolar design for clean, crisp sound—as well as our Transient Attack® circuitry, which ensures that every nuance of your bass performance is reproduced faithfully.
Guided Tour - Front Panel 10 MODEL 1400 BASS AMPLIFIER 140 WATTS EFFECTS 0dB CONTOUR 0dB 0dB 0dB POWER Hartke Systems COMPRESSION Transient Attack o -15 SEND RETURN INPUT 1 2 3 FLAT ENHANCE 4 +15 -15 +15 -15 +15 -15 +15 VOLUME LOW LOW MID HIGH MID HIGH 5 6 7 8 9 COMPRESSION 11 OFF 12 ON HEADPHONES 13 POWER 14 1.
Guided Tour - Front Panel 6. Low EQ control - This control provides approximately 15 db of cut or boost at 33 Hz, with a resonant (bell) curve. When the knob is at the 12 o’clock (“0”) position, there is no boost or attenuation (that is, flat response). As it is turned clockwise from the “0” position, the frequency area is boosted; as it is turned counterclockwise from the “0” position, the frequency area is attenuated. For more information, see the “About Equalization” section in this manual. 7.
Guided Tour - Rear Panel 1 2 FUSE NO USER SERVICABLE PARTS INSIDE-DO NOT EXPOSE UNIT TO WET CONDITIONS. ASSEMBLED IN R.O.K. S/N -115V AC 50/60 Hz 130W MODEL 1400 AMPLIFIER 140 WATTS 4 Ω Hartke Systems Transient Attack DISTRIBUTED BY SAMSON TECHNOLOGIES CORP. HICKSVILLE, NEW YORK 1. Fuse holder - Insert a 4 amp, 250 volt fuse here for 115 volt operation. We recommend the use of slow-blow fuses. 2. Speaker output - Connect any 4, 8, or 16 ohm bass cabinet to this standard unbalanced 1/4” jack.
Setting Up and Using the Hartke Systems 1400/1415 Setting up your Hartke Systems 1400/1415 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. To avoid potential overheating problems, make sure that the rear panel is unobstructed and that there is good ventilation around the entire unit.
Setting Up and Using the Hartke Systems 1400/1415 5. Press the front panel Power switch in order to turn on the amplifier. 6. Set the output of your bass to maximum and then, while playing, slowly turn the Model 1400/1415 Volume control up until the desired level is achieved. If you hear distortion even at low amplifier Volume settings, back off the output of your bass (or check for a faulty cable).
About Equalization The Hartke Systems Transient Attack® 1400/1415 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. This blend is what gives every sound its distinctive tonal color.
About Equalization The specific EQ you will apply to your bass signal is very much dependent upon your particular instrument and personal taste and playing style.
Effect of the Contour Switch The Contour switch provides a unique control that allows the Model 1400/1415 to emulate the sound of a classic tube bass amplifier. When pressed in (the “Enhance” setting), a special kind of equalization curve is activated that provides moderate boost at 45 Hz, deep attenuation at 240 Hz, and gentle boost that peaks at approximately 3 kHz. This curve is illustrated below: CONTOUR FLAT ENHANCE AUDIO PRECISION 1400 sweep LEVEL (dBm) vs FREQ (Hz) 40.000 Ap 30.000 20.000 10.
About Compression The dynamic range of a sound is the difference between its loudest and softest points. For example, as you play your bass, you’ll probably find that some notes (for example, notes played on the upper frets of the lowest string) are considerably louder than others.
Specifications 1. Rated Output Power (at 1 kHz, 4 ohm, THD 1%) 146 W 2. Total Harmonic Distortion (with 30 kHz LPF, 4 ohm, 140 W) 0.05% 3. Signal To Noise Ratio (with 30 kHz LPF) -68.6 dB 4. Frequency Response (at flat S/W on) 20 Hz 40 Hz 20 kHz -11.3 dB - 0.4 dB - 6.2 dB 5. Input Sensitivity 10.8 mV 6. Equalizer Low (33 Hz) Low Mid (80 Hz) ±15 dB ±15 dB High Mid (240 Hz) High (2.5 kHz) ±15 dB ±15 dB 7.
