GEmini
1-P
U
r
Guide
MISSION
ENGINE
ING
In
odu
ion
Congratulations on your purchase of the Mission
Gemini 1-P passive guitar speaker. This product is
designed to be intuitive to setup and operate, and to
provide many years of trouble free service.
However, we recommend that you take a few
moments to read through this User Guide in order
to get the best possible experience with your new
speaker.
bAck
ound
The Gemini 1-P is a professional quality, passive
speaker cabinet specifically designed for use with
software based music systems such as guitar
modeling amplifiers, cabinet simulators, and digital
audio workstations.
A traditional guitar speaker cabinet is typically
designed to work best in conjunction with a guitar
amplifier. The speaker works within a limited
frequency range, and the cabinet and speaker
themselves contribute to the overall tone. While this
works perfectly with an analog guitar rig, it is not
always an ideal solution for digital systems.
Software based modelers usually implement
guitar cabinet simulators designed to emulate
specific speaker cabinets in software. If the signal
subsequently passes through a physical speaker
cabinet with its own tonal characteristics, it colors
the eventual tone, making the modeling less accurate.
Additionally, guitar speaker cabinets do not often
work well with signals other than guitar such as
keyboards, vocals, and playing back recorded music.
The Mission Gemini amplifiers and cabinets resolve
these problems as they are specifically designed to
work with software based music systems.
f
tur
The Gemini 1-P is a passive speaker cabinet designed
to work with an external power amplifier, and
faithfully reproduce a modeled signal chain. The
cabinet is fitted with a 12” low frequency driver, and
1” high frequency compression driver in a co-axial
configuration: The high frequency driver is mounted
in the center of the low frequency driver.
The Coaxial driver configuration has been used for
over sixty years in professional audio monitoring and
high-end audiophile applications. The benefits include
a wider field of dispersion that’s more uniform across
the frequency spectrum. This means listeners do not
have to be positioned directly in front of the speaker
to get the best experience. The full frequency range
also appears to the listener to originate from a single
source, without any apparent physical separation
between low and high frequencies. Since the high
frequency driver is located at the center of the driver,
the cabinet can be used with a microphone, with
the high frequencies accentuated as the microphone
is positioned towards the center of the speaker,
replicating the on/off axis positioning of a traditional
guitar cab. These features make the Gemini 1-P ideal
for live, recording, and monitoring use.
REcommEndEd
Amplifi
s
The Gemini 1-P works best with solid state power
amplifiers rated between 50w and 250w RMS into 8
ohms, or tube amplifiers rated between 10w and 75w
RMS into 8 ohms. Amplifiers rated at higher than the
recommended output power can certainly be used,
but care should be taken not to consistently input
greater than the recommended levels as damage to
the drivers can occur.
Gemini passive cabinets feature a unique protection
circuit that reduces the likelihood of damage to the
high frequency driver if input power should exceed
250w. An analog compressor tracks the source
material and provides almost 5dB of attenuation at
peak power. This feature protects the driver against
