We are very excited to announce our newest product, the MAGMA 1.0 Bass Preamp! The MAGMA preamplifier incorporates solid state CMOS technology. The MAGMA includes two separate identical channels, A and B, or a blend input A/B, as well as both channel effects loops, two MASTER line outs, DIRECT output and footswitch with options for switching between each channel or both!
Each unit is enclosed is a standard 19 in. 2U rackmount durable steel case, using aerospace engineering ink for labeling.This has been a project we have been engineering for over a year and we are now bringing it you!  Below are sound samples of our newest product please enjoy!



******Sample recording Sources

A single Rickenbacker 4001 bass guitar, stock bridge pickup, was used for the following recordings. The resulting audio was recorded through the MAGMA 1.0 Bass Preamp into a PV 8.5C 500 watt power amp feeding a MONOLITH 415-RFL, using a Sennheiser 421 microphone placed 6 inches from the top front facing speaker and fed into Pro Tools. No additional processes or plugins were used to alter the sound.

Each MAGMA channel uses the following controls: DRIVE, BASS, MID, TREBLE and LEVEL. The overall output signal of each or both channels is controlled by a MASTER volume control through the MASTER LINE OUTS on the rear of the unit. A balanced Direct output has been added to the unit for line level signals.


                TYPICAL OPERATING SPECIFICATIONS
                                  M A G M A  Series

OVERALL SYSTEM SENSITIVITY
    Input.........................................................460MV P-P@1KHZ
    Control Settings.........................................All set to 5, Master 10
    Output......................................................Preamp Line out 1.07v
                                                                    Master Line out   1.6v
   
   
TEST EQUIPMENT USED
    Scope........................................................Tektronix TDS3034B   
    Sine Generator............................................Tektronix AFG3102
TEST CONDITION 
    Line Voltage...............................................120VAC 
    Voltage tolerances......................................10%
    Signal range...............................................20HZ-20KHZ logarithmic scale
    db tolerances.............................................10%
    Load..........................................................50Ω
SYSTEM IMPEDANCE or Z
    Preamp input Z(Channel A or B)....................94KΩ
    Both Input Z ..............................................47KΩ
    Channel A or B (accessory return).................27KΩ
    Channel A or B (accessory send)...................150Ω
    Master (accessory return).............................10KΩ
    Master (accessory send)...............................150Ω
SYSTEM GAIN (Max.)
    Preamp in to accessory out(A or B)................65db
    Preamp accessory input to Master out............15db

Channel A:      DRIVE: 7    BASS: 7    MID: 7    TREBLE: 7    LEVEL: 4   

Channel B:      DRIVE: 5    BASS: 7    MID: 7    TREBLE: 7    LEVEL: 6    MASTER: 3