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Summary of Contents for Gradient Evidence
- Page 1 EVIDENCE USER GUIDE...
- Page 3 GRADIENT EVIDENCE Congratulations on your purchase of the Gradient Evidence loudspeakers which represent the latest in loudspeaker technology. The Gradient Evidence is handcrafted and individually tested in Finland using the best possible materials available. It will provide you with enjoyable musical experiences for years to come.
- Page 4 10mm wrench. If necessary, the adjustable feet can be replaced by 6mm spikes. Gradient Evidence loudspeakers can be positioned against the wall or into the room. If there is any furniture between the speaker and the listener only check that the top part of the speaker can be seen from the listening place.
- Page 5 POSITIONING The upper part of the Gradient Evidence is built into so called Acoustic Resistance Enclosure. Such a design eliminates the harmful backward radiation allowing to place the speaker against the backwall. It is still recommended not to position the speaker too close to the side walls.
- Page 6 BASS LEVEL ADJUSTMENT The Gradient Evidence is equipped with a three position bass level adjustment. Correct level depends not only on the placement of the speaker but also on personal taste. The level of bass relative to the mid and high frequencies is adjusted by the jumper near the terminals.
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Page 7: Connection To The Amplifier
CONNECTION TO THE AMPLIFIER Gradient Evidence is equipped with two pairs of binding posts which are located on the base of the speaker. The red marked plus terminals are linked together by a jumper. The black marked minus terminals are similarly connected to each other. - Page 8 CONNECTION TO THE AMPLIFIER · bi-amping In this case the speakers are driven by two amplifiers. One amplifier drives the bass part and another the midrange & treble part of the speakers. Disconnect the jumpers between the binding posts. Connect the leads from the bass amplifier to the binding posts marked LF+ &...
- Page 9 It is recommended to use an amplifier of 2 x 50W … 250W / 8 ohms with Gradient Evidence. Also higher powered amplifiers can be used with caution due to their increased potential for speaker damage.
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Page 10: Power Handling
(high notes) which easily burn the treble driver voice coil. Gradient Evidence loudspeakers can handle high powered peaks of short duration. Music of varying dynamics can be listened to at a high volume level. If the... - Page 11 · bass reflex system at low frequencies Low frequencies below 200Hz are reproduced by bass reflex enclosure tuned at 27Hz. The Evidence is equipped with a bass level adjustment. This is a very useful feature allowing the listener to adjust the best sounding bass level which depends not only on the positioning of the speakers but also on personal taste.
- Page 12 A BRIEF DESCRIPTION OF TECHNOLOGIES · acoustic waveguide at high frequencies The aluminium dome tweeter placed at the apex of the cone uses midrange diaphragm as a waveguide to control treble dispersion. The resulting radiation pattern at high frequencies is therefore very similar to that of the cardioid midrange.
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Page 13: Technical Specifications
TECHNICAL SPECIFICATIONS Model: Gradient Evidence MK IV Loading principle: Bass: Bass reflex Midrange: Acoustic Resistance Enclosure Radiation Patterns: sphere (bass), cardioid (midrange & treble) Frequency Response: 45 … 20000Hz +/-2dB, 29Hz -6dB Impedance: 4 ohms Sensitivity: 86dB / 2.83V / 1m Recommended 50W …... -
Page 14: Quality Control
The inspection marking and the serial number are located on the inner wall behind the terminals. Made in Finland Gradient Labs Ltd. Kisällintie 8 FI-06150 Porvoo Finland www.gradient.fi COPYRIGHT © 2013 GRADIENT LABS. ALL RIGHTS RESERVED. - Page 16 www.gradient.fi...
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