For the maximum in usable channels and multiple stereo input devices, the PX900DLX offers XLR low impedance and 1/4 in. high impedance inputs on the first 4 channels, and the last 5 channels all have XLR and stereo line-in 1/4 in. jacks. The power platform and master section features are the same as the PX700DLX.
These are extremely easy to use, and are excellent for small combos or institutional use where quality of sound and ease of use are the primary concerns, but a slightly more professional feature set is desired. They all feature Crate's 5-year transferable warranty and are built to last.
Graphic EQs
These 7-band graphic equalizers allow customization and shaping of the output signals to match room acoustics and enhance the sound. Use the selector switch to determine where the equalization will be applied: either to the main and monitor output signals, or to the main 1 and main 2 output signals.
LED Meters/Limiter Indicators
These LED meters monitor the output signal levels for either the main and monitor output signals, or the main 1 and main 2 output signals (dependent on the setting of the selector switch). The red LEDs illuminate when the internal limiter is engaged to prevent the signal from being clipped (clipping results in overdrive distortion and should be avoided). If the limiter LEDs flash continuously or remain on constantly during use, reduce the output signal levels until they flash only on strong signal peaks.
Effects Returns
Use these controls to adjust the magnitude of the effects applied to the output signals. Use the selector switch to determine where the effects will be applied: either to the main and monitor output signals, or to the main 1 and main 2 output signals.
Main/Monitor/Main1/Main 2
Use this switch to select whether the graphic EQs, LED meters, and master level controls are assigned to the Main and Monitor outputs (switch in the out position) or to the Main 1 and Main 2 outputs (switch depressed. When this switch is in the out position, the Main/Main 1 graphic EQ controls the signal to power amp #1, the output of which is connected to the Main Output jack. Also, the Monitor/Main 2 graphic EQ controls the signal to power amp, the output of which is connected to the Monitor Output jack. When this switch is depressed, the Main/Main 1 graphic EQ controls the signal to power amp #1, the output of which is connected to the Main 1 Speaker Output jacks. Also, the Monitor/Main 2 graphic EQ controls the signal to power amp #2, the output of which is connected to the Main 2 Speaker Output jacks.
Effects Send
Use this control to set the overall signal level sent to the internal DSP or external effects (if used).
Aux In
Use this control to set the input signal level of the aux in jack.
Tape In
Use this control to set the input signal level of the tape in jacks.
Power LED
This LED illuminates when the mixer is on.
Phantom +48V
This switch, when depressed, applies +48 volts DC to pins 2 and 3 of each channel's XLR input jacks. This allows use of microphones that require a source of phantom power for proper operation (mics not requiring phantom power will not be affected by the presence of the DC voltage). The adjacent LED illuminates when the phantom power is on.
DSP Selectors
Use these switches to select the type of digital signal processing effect to be applied — vocal, large hall, and small hall are reverberation effects; delay is a digital delay effect.
DSP On
Use this switch to activate the internal digital signal processor. When this switch is depressed, the selected DSP effect is activated.
Effects Send
Use this jack to send a signal to an external effects device. The signal level at this jack is set by the effects send control.
Footswitch
Use this jack to connect a footswitch for remote on/off control of the DSP and external effects device. The footswitch must be a normally open, momentary type such as the Crate model #FSIU. The wiring for the footswitch is as shown:
Aux In
Use this jack as the return jack when using an external effects device, or to feed another mixer's signal into the PX700DLX/PX900DLX. This jack is post-input channel, pre-EQ, and pre-power amp.
Tape In
Use these jacks to connect the outputs of a tape deck or CD player to the mixer. The playback signal level is set by the tape in level control.
Tape Out
Use these jacks to connect the mixer to a tape recorder. These jacks are is post-EQ, pre-master, and their signal level is determined by the channel level controls.
Monitor Out
Use this jack to send a line level, monitor mix signal to the power amplifier you are using for your monitor speakers.
Main Out
Use this jack to send a line level, main mix signal to an external power amplifier (if used), a recording console, or to the aux in jack of another PX700DLX/PX900DLX.
Power Amp Switch
Use this switch to set the amplifier for mono bridged operation (switch to the left) or for main/monitor operation (switch to the right).
Main 1/Main 2 Speakers
Use these jacks to connect the mixer to your PA speakers, only when the power amp switch is set to the main/monitor position. Observe the 4-ohm minimum load rating and all other speaker information printed on the rear of the mixer.
Bridge Speaker
Use this jack to connect the mixer to your PA speakers, only when the power amp switch is set to the bridge position. Observe the 8-ohm minimum load rating and all other speaker information printed on the rear of the mixer.
AC Line Cord
Connect this cord to a suitable source of AC power, as indicated to the right of the cable. Do not attempt to bypass the ground connection of this power cable!
Power Switch
Use this switch to apply AC voltage to the mixer. The mixer is on when the switch is depressed, off when the switch is in the out position.
Technical Info
Maximum Voltage Gain (PAD OFF)
86dB Ch In (Lo-Z) to Power Amp Out (Ch 1-4)
66dB Ch In (Lo-Z) to Main Out, Monitor Out (Ch 1-4)
72dB Ch In (Lo-Z) to Effect Out (Ch 1-4)
50dB Ch In (Lo-Z) to Rec Out (Ch 1-4)
54dB Ch In (Hi-Z) to Main Out, Monitor Out (Ch 1-4)
25dB Aux In to Main Out
73dB Mic In to Main Out, Monitor Out (Ch 5-7/5-9)
28dB Line In to Main Out, Monitor Out (Ch 5-7/5-9)
Input Channel Equalization
±15dB Maximum
High: 12kHz (shelving); Mid: 2.5kHz (peaking); Low: 80Hz (shelving)
Frequency Response
+1/-3dB, 20Hz-20kHz @ 1W output into 8(Power Amp Out)
+1/-3dB, 20Hz-20kHz @ +4dB output into 10k(Main Out, Monitor Out, Effects Send)
Maximum Output Power
200W/4@ 0.5% THD @ 1kHz
Total Harmonic Distortion
<0.3% @ 20Hz-20kHz, 100W output into 4(Power Amp Out)
<0.3% @ 20Hz-20kHz, +14dB output into 10k(Main Out, Monitor Out, Effects Send)
Hum and Noise
-122dB equivalent input noise, -63dB residual output noise
(Average, Rs=150....)
(Power Amp Out)
(with 20Hz-20kHz BPF)
-78dB residual output noise (Main Out, Monitor Out, Effects Send)
-73dB (77dB S/N) (Main Out, Monitor Out) All channel level controls at minimum
-40dB (44dB S/N) (Main Out, Monitor Out) One channel level controls at maximum
-74dB (78dB S/N) Effects Send All channel level controls at minimum
-34dB (38dB S/N) Effects Send One channel level controls at maximum
Crosstalk @ 1kHz
63dB adjacent input, 63dB input to output
Graphic Equalizer
7 bands (125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz) ±12dB Maximum
Internal Digital Effect
4 types (Digital Delay, Vocal, Large Hall, Small Hall)
Phantom Power
+48V is supplied to electrically balanced inputs for powering condenser microphones via 6.8k current limiting/isolating resistors
Limiter LED ON
Output Level: 36dB
Footswitch
DSP Mute: on/off
Power Consumption
200W
Dimensions
Size (W x H x D): 21.6 x 10.8 x 10.8 in. (546 x 275 x 275mm)
Weight: 39 lbs. (17.7 kg)
