Samson Hartke Systems 7000 User Manual

5
Guided Tour - Front Panel
1. Passive Input jack - If your bass guitar has passive circuitry, connect it to the Model
5000/7000 here. This standard 1/4” unbalanced jack provides a high impedance (100 k Ohms)
input sensitivity of 20 millivolts.
2. Active Input jack - If your bass guitar has active circuitry,* connect it to the Model 5000/7000
here. This standard 1/4” unbalanced jack provides a high impedance (100 k Ohms) input sensi-
tivity of 60 millivolts.
3. Pre-Amp A (Tube) control - This determines the amount of preamplification being provided
by special circuitry which simulates the sound of a classic tube amplifier (this circuitry actually
includes a real tube!). Note that when both Pre-Amp knobs are used at equal settings, the
amplifier will be twice as loud as when only one is used. Avoid setting both Pre-Amp knobs
on maximum (“10”), since the result will almost always be undesirable distortion.
4. Pre-Amp B (Solid State) control - This determines the amount of preamplification being
provided by special circuitry which simulates the sound of a solid state amplifier. Note that when
both Pre-Amp knobs are used at equal settings, the amplifier will be twice as loud as when only
one is used. Avoid setting both Pre-Amp knobs on maximum (“10”), since the result will almost
always be undesirable distortion.
5. Compression LED - Provides a visual indicator of the status of the compression circuitry.
When lit steadily green (for example, when the Compression knob [see #6 below] is set to “Off”),
no compression is being applied. When unlit, compression is being applied to the incoming sig-
nal at a ratio of approximately 2:1. When flashing red, the compression ratio is approaching
infinity (limiting is being applied to peak signals). When lit steadily red, the entire signal is being
limited. This LED “follows” the incoming signal, changing continuously as different amounts of
compression and/or limiting are being applied. For more information, see the “About
Compression” section on page 11 of this manual.
6. Compression control - This determines the amount of compression (peak signal reduction)
by simultaneously adjusting both threshold and compression ratio (which ranges from 2:1 to
infinity [limiting]). At the fully counterclockwise “Off” position, the circuitry is bypassed and no
compression is applied (the knob clicks when set to the “Off” position). As the knob is raised
clockwise (at settings from “1” to “∞”) increasing amounts of compression are applied. For more
information, see the “About Compression” section on page 11 of this manual.
* Bass guitars that have active circuitry normally require a battery for the circuitry to be func-
tional.
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Hartke Systems
Transient Attack


POWER
MODEL 7000 350 WATTS + 350 WATTS
INPUT PRE AMP CONTOUR MASTER
0
3
5
10
15
-18
3
5
10
15
+18
0
3
5
10
15
-18
3
5
10
15
+18
LOW PASS HIGH PASS
5
4
3
2
1
0
6
7
8
9
10
VOLUME
PASSIVE
COMPRESSION
5
4
3
2
1
0
6
7
8
9
∞
5
4
3
2
1
0
6
7
8
9
10
5
4
3
2
1
0
6
7
8
9
10
+15
+12
+9
+6
+3
+2
0
-2
-3
-6
-9
-12
-15
+15
0
-15
8KHz
5KHz3KHz2KHz1KHz500Hz250Hz125Hz64Hz30Hz
8KHz
5KHz3KHz2KHz1KHz500Hz250Hz125Hz64Hz30Hz
GRAPHIC EQUALIZER
IN
OUT
AB
TUBE SOLID STATE
ACTIVE
500Hz
250Hz
1KHz
80Hz
FREQUENCY
BALANCE
CROSSOVER
LOW
HIGH
2
1
3 4
5
7
8
9
10
11
14
15
12
13
6

Samson Hartke Systems 7000 Specifications

General

Brand	Samson
Model	Hartke Systems 7000
Category	Musical Instrument Amplifier
Language	English