COPPERSTONE interchangeable 3 Band Bass Guitar
Preamp frees your instrument from being attached
just to one tone. Now if your tone needs to change,
for the need, experiment, or just for fun - you can
replace your COPPERSTONE at will.
COPPERSTONE is beautifully crafted compact replaceable 3 band bass guitar preamp designed
by Jerzy Drozd and manufactured in THE CASTLE. This is the same bass guitar preamp installed
in all JERZY DROZD creations equiped with active electronics.
COPPERSTONE smartly engineered into a small footprint, is easy to install
into the bass guitar of your choice.
Besides its unique characteristic, interchangeability, this 3 band bass guitar preamp delivers
up to 9dB gain boost and can be configured with up to 3 different mid range selectable frequencies,
passive tone and active/passive mode among others.
COPPERSTONE produce a powerful tone with warm lows, its 3 midrange selectable frequencies put at your
disposal different usable medium tone variations, while the treble control serves a crisp and clear sound.
COPPERSTONE is beautifully crafted compact replaceable 3 band bass guitar preamp designed by Jerzy Drozd
and manufactured in THE CASTLE. This is the same bass guitar preamp we do install in all JERZY DROZD creations
equiped with active electronics. COPPERSTONE smartly enginered into small footprint makes it possible for easy install
without soldering into bass guitar of your choice.
Besides it´s unique caracteristic - interchangeability, this 3 band bass guitar preamp can deliver up to 9dB gain boost
and can be configured with up to 3 different mid range selectable frequencies, passive tone and active/passive mode among others..
COPPERSTONE produce powerful tone with warm lows, while 3 midrange selectable frequencies will allow you to have many
different usable medium tone variations while treble control serve crisp and clear tone.
COPPERSTONE can be expanded with our electronic modules like FLAME, QUARZ and MIDI to bring even more sound posibilities
to your JERZY DROZD creation or any other bass guitar of your choice.
COPPERSTONE can be configured with 3 different mid frequency variations:
- single fixed frequency eg.: 350Hz
- two switchable frequencies eg.: 350Hz/700Hz using 2 way toggle switch
- tree switchable frequencies eg.: 350Hz/700Hz/900Hz using 3 way toggle switch
More over, besides standard frequencies available for COPPERSTONE, you can configure
your custom COPPERSTONE preamp with different frequencies to suits your needs.
In its basic setup, COPPERSTONE is adjusted as a unity gain device, where the input signal remains
the same as the output signal. This means that active and passive signals will remain the same
when EQ is set flat on all the tree bands. However, it is possible to boost the gain of COPPERSTONE
up to +9dB if necessary, specially if pickups signal is not enough to drive the first stage of amplification.
COPPERSTONE is one of the smallest bass guitar preamps available today.
COPPERSTONE is one of the smallest
bass guitar preamps available today.
Flame, an optional module for COPPERRSTONE is a discrete electronic device. This subminiature module
monitors your battery status and will flash when battery drops its voltage below the desired level.
Flame is installed as standard on all new JERZY DROZD creations except PRELUDE instruments.
COPPERSTONE operates on current as low as 0,84mA which represent mostly half of current consumed by other commercialy
available bass guitar preamps. The minimum voltage necessary to power COPPERSTONE is 3.5V, very low compared to
the minimum of 5v or even 7v for other similar devices.
While batttery with a voltage of 5V will be considered "dead" for other preamps, COPPERSTONE will still be capable
to squeeze it down to just 3.5 volts with impresive 70% performance.
These factors among others make this unique bass preamp to stand out in terms of energy efficiency,
which translates in less battery consumption, less vaste and, lastly in a lower operational cost.
Flame is a discrete electronic device. This litlle module monitors your battery
status and will flash when battery drops its voltage below the desired level
- Long: 28mm
- Wide: 18mm
- High: 8.3mm
- Weight: 9.7g
- Cover plate: Phosphor bronze
- Connection: 24 pins
- Active/Passive Mode Selector (optional)
- Mid Freq. 2 or 3 way Toggle Switch (optional)
- Passive Tone (optional)
- Master Volume
- Pickups Blend
- Bass: +/- 16.8dB @ 50Hz
- Midrange: +/- 16.8 dB @ 380Hz, 750Hz Up to 3 selectable frequencies
- Treble: +/- 16dB @ 6.0 KHz
- Gain adjustment: 0dB to +9dB
- Frequency range: 18 Hz - 20 KHz
- Input Impedance: 500kOhm
- Output Impedance: 100 Ohm
- Power consumption: 840uA
- Operating voltage: maximum 18v down to 3.5V , one or two 9v alcaline batteries
- Single 9v battery life: Estimated at more than 600 hours