Gemini BPM-250 - Manual (Page 5)

Page 4
1. Unscrew the outside FADER PLATE SCREWS (B). Do
not touch the INSIDE SCREWS (C).
2. Carefully lift the fader and unplug the CABLE (D).
3. Plug the new fader into the cable and place it back in the
mixer.
4. Screw the fader to the mixer.
5. BPM DISPLAY: There are BPM DISPLAYS (23, 24) for Channel 2
and Channel 3. They update approximately every 2.5 seconds and
digitally display the Beats Per Minute allowing you to match the beats
visually. BPM DISPLAY (23) reflects the Beats Per Minute of Channel
2, and BPM DISPLAY (24) reflects the Beats Per Minute of Channel
3.
NOTE: A [- -] reading will appear on the BPM DISPLAY if the
track has unclear beats. The [- -] reading will also appear if
there is no signal present.
6. The BEAT OFFSET INDICATORS (25) light when the tracks of
Channel 2 and Channel 3 are within 11 BPMs of each other and
display how aligned the beats for Channel 2 and Channel 3 are.
When the RED LEDs light, the beats are not aligned. When the
YELLOW LEDs light, the beats are almost aligned. When the
GREEN LED lights, the beats are aligned perfectly.
NOTE: If the diffence between the two channel’s beats
exceed 11 BPM, the BEAT OFFSET INDICATORS will not
light.
SUGGESTION: You can use the BPM DISPLAYS to determine which
tracks have similar or the same Beats Per Minute. When mixing two
tracks with similar Beats Per Minute, you can use one source’s
pitch control to align the Beats Per Minute with the other source’s
BPM. The BPM DISPLAYS and the BEAT OFFSET INDICATORS
update every 2.5 seconds and will reflect the change in BPM and
indicate when the beats are aligned.
NOTE: Beat mixing is a skill that requires practice. Not
every track has a strong beat, and beat mixing works best
with tracks with clear and strong beats.
7. OUTPUT CONTROL SECTION: The level of the AMP OUT (38) is
controlled by the MASTER (18) control. The BALANCE (17) control
will allow the Amp Out signal to be balanced between the left and
right speakers. The BOOTH (16) control adjusts the level of the
BOOTH OUTPUT (39). HINT: The booth OUTPUT is used by some
DJs to run monitor speakers in their DJ booth. You can also use it as
a second ZONE or AMP output.
NOTE: The RECORD OUT (40) has no level control. The
level is set by the channel slides and the gain controls of
the selected channel. The tonal qualities are set by the
bass, treble and mid controls of that same channel.
8. TALKOVER SECTION: The purpose of the talkover section is to allow
the program playing to be muted so that the mic can be heard above
the music. When the TALKOVER (19) button is pushed, the
TALKOVER INDICATOR will glow and the volume of all sources
except the Mic or whatever is connected to the PHONO/LINE (36)
input are reduced by -16 dB.
9. CUE SECTION: By connecting a set of headphones to the
HEADPHONE (4) jack, you can monitor any or all of the channels.
Select the correct CUE (21) button or buttons and their respective
CUE LED (29) indicators will glow. Use the CUE LEVEL (20) control
to adjust the headphone volume without effecting the overall mix. By
sliding the CUE PGM PAN (22) control to the left you will be able to
monitor the assigned cue signal. Sliding to the right will monitor the
PGM (program) output.
10. DISPLAY: The peak hold, dual function DISPLAY (27) indicates either
the MASTER (38) output left and right levels or the channel 2 and
channel 3 levels. You can choose the option you want by pressing the
DISPLAY (28) button.
NOTE: When the DISPLAY (27) is in the channel 2/channel 3
display mode, by adjusting the individual channel gain and
tone controls, you can increase or decrease the signal to
match the other channel’s signal. The channel slides and
crossfader have no effect on the display readings.
Specifications
INPUTS:
DJ Mic....................................................1.5mV 2Kohm unbalanced
Phono.........................................................................3mV 47Kohm
Line.......................................................................150 mV 27Kohm
OUTPUTS:
Amp/Booth......................................................0 dB 775mV 400ohm
Max..............................24V Peak to Peak
Rec...........................................................................225mV 5Kohm
GENERAL:
Low...........................................................................+ 12/-26dB
Mid............................................................................+ 12/-26dB
High..........................................................................+ 12/-26dB
Gain (Mic)........................................................................0 to -40dB
Gain (Chnls 1-3)..............................................................0 to -20dB
Frequency Response....................................20Hz - 20KHz +/- 2dB
Distortion................................................................................0.02%
S/N Ratio...............................................................better than 80dB
Talkover Attenuation..............................................................-16dB
Headphone Impedance.........................................................16ohm
Power Source.............................................115/230V 50/60Hz 15W
Dimensions.................................10" x 12" x 4 7/16" (254 x 305 x 112 mm)
Weight........................................................................6.5 lbs (3 kg)