MixPack Pro - Hi-fi system ALTO - Free user manual and instructions

USER MANUAL MixPack Pro ALTO

Drum Machine* Microphones* Headphones* Notes: y Microphones, headphones, drum machine, footswitch, etc. are not included. y To reduce electrical hum at high gain settings, keep the mixer's power supply away from your cables and the mixer's channel inputs.

1. POWER IN – Use the included power cable to connect the mixer to a power outlet. While the power is

switched off, plug the power cable into the mixer first, then plug the power cable into a power outlet.

2. VOLTAGE SELECTOR – This 2-position switch sets the AC input voltage for the speaker. The switch

should already be set to the correct voltage for your location. (US users should set this switch to "100- 120V" whereas UK and most European users will need to set this to "220-240V.")

3. POWER SWITCH – Turns the mixer on and off. Turn on the mixer after all input devices have been

connected. Make sure the MASTER LEVEL knob is set to "zero" before turning it on.

4. SPEAKER OUTPUTS – Connect the speakers to these outputs using 1/4" cables.

5. MIC INPUT (XLR) – Connect a microphone to these inputs with an XLR cable.

6. LINE INPUT (1/4") – Connect line-level devices to these inputs with 1/4" TRS cables.

7. LINE INPUT (1/4") – Connect line-level devices to these inputs with 1/4" TS cables.

8. HI EQ (TREBLE) – Adjusts the high (treble) frequencies of the channel.

9. MID EQ (MID) – Adjusts the mid-range frequencies of the channel.

10. LOW EQ (BASS) – Adjusts the low (bass) frequencies of the channel.

11. AUX SEND 1 – Adjusts the channel audio (pre-fader) level that is sent to the MONITOR OUT and

12. AUX SEND 2 – Adjusts the channel audio (post-EQ) level that is sent to the mixer's internal effects

processor or AUX OUT. Turn this up for the channels that you want effects applied to. You can use this to apply effects to individual channels. (If you have an external device connected to the STEREO RTN jack, the internal effects processor will be bypassed.)

13. PAN – Adjusts the (mono) channel's position in the stereo field.

14. BALANCE (CH 5/6 and 7/8) – Adjusts the balance between Channels 5 and 6 and Channels 7 and 8.

15. CHANNEL LEVEL – Adjusts the audio level on the channel.5

16. -20 dB SWITCH – When this button is engaged, the audio of that channel will be attenuated by 20 dB.

This can help increase the headroom and reduce distortion due to an overly loud input signal that peaks frequently.

17. 2TK IN – You can use a standard stereo RCA cable to connect an additional audio source to this input.

The signal's volume can be adjusted with the 2TK IN LEVEL knob and sent to the monitor mix (CTRL ROOM and PHONES) or main mix (MAIN OUT).

18. 2TK OUT – You can use a standard stereo RCA cable to connect this output to an external recording

device. The signal sent out these RCA outputs is the same as the MAIN OUT signal.

19. AUX OUT – You can use a 1/4" TRS cable to connect this output to the input of an external amplifier or

active monitor to create a custom monitor mix for onstage musicians. You can adjust this level with the AUX SEND 2 knob. To use an external effects rack unit, compressor, etc. with the mixer, you can use Y-cables to connect this output to the input of your external device, then connect the outputs of the device to the STEREO RTN input.

20. STEREO RTN – You can connect the output of an external device to this input with a 1/4" stereo/TRS

cable. This is usually used for outboard effects devices but can also be used like an extra input channel for synthesizers, drum machines, etc. Adjust this input's volume with the AUX/DSP RET knob. (If you have an external device connected to the STEREO RTN jack, the internal effects processor will be bypassed.)

21. AUX/DSP RET – Adjusts the volume of either the mixer's internal effects processor or signal being sent

into the STEREO RTN. When cables are inserted into the STEREO RTN, the internal effects processor will be bypassed.

22. FX MUTE – Press this button to mute/unmute the effects.

23. FX CLIP/MUTE LED – The LED will flash if the mixer's internal effects processor signal is clipping. If

this happens, decrease the setting of the AUX SEND 2 knob or CHANNEL LEVEL knob.

24. EFFECTS SELECTOR – Selects the effect that the mixer's internal effects processor will apply to the

various channels. Each channel can send different levels of audio to the processor by adjusting its AUX SEND 2 knob. See the EFFECTS section for an explanation of the available effects. (If you have an external device connected to the STEREO RTN jack, the internal effects processor will be bypassed.)

25. VARIATIONS SELECTOR – Selects the amount of the effect applied to the various channels.

26. FOOTSWITCH – When a latching-style footswitch is connected to this jack with a 1/4" TRS cable, it

can be pressed to allow all channels to bypass the mixer's internal effects processor.

Adjusts the level of audio sent into to 2TK IN jacks and routed to the main mix or monitor mix.

28. 2TK TO – Set this switch to route the audio sent into the 2TK IN jacks to Channels 7/8 or to the main

29. GRAPHIC EQUALIZER – You can use these controls to adjust the equalization of the main mix

system. The level of this output is controlled by the MONITOR LEVEL knob.

32. MAIN OUT – Use standard 1/4" cables to connect these outputs to the speakers. The level of these

outputs is controlled by the MASTER LEVEL knob.

35. LED METERS – Shows the audio level of the main mix and monitor mix. Turn the volume down if the

+10 LED lights up excessively.

36. PHANTOM POWER – Activates/deactivates phantom power. When activated, phantom power

supplies +48V to the XLR mic inputs. Please note that most dynamic microphones do not require phantom power, while most condenser microphones do. Consult your microphone’s documentation to find out whether it needs phantom power.

37. POWER LED – Illuminates when the mixer is on.6

1 VOCAL 1 Reverb, simulating a room with a small delay time. Decay time Pre-delay 0.8~1.1s 0~79ms 2 VOCAL 2 Reverb, simulating a small space with a slight decay time. Decay time Pre-delay 0.8~2.5s 0~79ms 3 LARGE HALL Reverb, simulating a large acoustic space. Decay time Pre-delay 3.6~5.4s 23~55ms 4 SMALL HALL Reverb, simulating the acoustics of a stage space. Decay time Pre-delay 1.0~2.9s 20~45ms 5 LARGE ROOM Reverb, simulating a studio with many early reflections. Decay time Pre-delay 2.9~4.5s 23~55ms 6 SMALL ROOM Reverb, simulating a bright studio room. Decay time Pre-delay 0.7~2.1s 20~45ms 7 PLATE Simulates bright plate reverb. Decay time Pre-delay 0.6~6.1s 10ms 8 TAPE REVERB Simulates classic tape delay created by multiple playback heads. Decay time Pre-delay 1.3~5.4 0~84ms 9 SPRING REVERB Simulates the lightly stretched sound of spring reverb from analog transducers. Decay time Pre-delay 1.3~5.4s 0~84ms 10 MONO DELAY Reproduces the signal after a small period of time. Delay period 60~650ms 11 STEREO DELAY Reproduces the signal after a small period of time with a slight difference between the two stereo channels. Delay period Feedback 210~400ms 37~73% 12 FLANGER Classic stereo flanging effect, similar to a jet plane taking off. Rate 0.16~2.79Hz 13 CHORUS Simulates the full, complex, watery sound of several instruments playing the same thing. Rate 0.5~5Hz 14 REVERB+DELAY Delay effect with room reverb. Delay period Reverse decay time 211~375ms 1.0~2.9s 15 REVERB+FLANGER Stereo flanger effect with room reverb. Flanger rate Reverse decay time 0.16~2.52Hz 16 REVERB+CHORUS Stereo chorus effect with room reverb. Chorus rate Reverse decay time 0.5~4.74Hz 1.5~2.9s7 1NEW1NEW1NEW1NEW1NEW1NEWAC100V ~ 50/60Hz110 -120V ~ 50/60Hz220 -240V ~ 50/60HzRATED POWER CONSUMPTION:1000WT12 ALT12 ALT6.3 AL

> 10 KΩ (all other inputs) 1 KΩ (tape out) 120 Ω (all other outputs) SNR: > 94 dB THD+N: 0.04% at +4 dBu, 1 KHz (mic, line, and stereo input channels) GAIN: 35 dB (mic input) 15 dB (line input) EQUALIZATION: High shelving: +15 dB @ 12 KHz Mid-bell: +15 dB @ 2.5 KHz Low shelving: +15 dB @ 80 Hz DSP SECTION: 24-bit A/D and D/A converters 24-bit DSP resolution Effects (16 presets): Reverbs (Hall, Room, Vocal, Plate), Delays (mono, stereo) (max delay time: 650ms) Modulations: Chorus, Flanger, Reverb, Combinations: Reverb + Delay, Reverb + Chorus, Reverb + Flanger Controls: 16-position effects selector, 16-position variation selector, clip LED, mute switch with LED indicator NOISE (bus noise): Fader 0 dB, channels muted: -85dB (ref:+4dBu) Fader 0 dB, all input channels set to Unity gain: -81dBr (ref:+4dBu) MAX OUTPUT: Balanced outputs: 27dBu Aux sends: 22dBu SPEAKER SECTION: SYSTEM TYPE: 3-way powered system bi-amp plus passive crossover into satellite FREQUENCY RESPONSE: 45 Hz – 20 KHz at -10 dB SPHERICAL HORN COVERAGE: 80° H x 80° V POWER: Low Output: 230 W RMS Class AB Mid-High Output: 120 W + 120 W RMS Class AB Peak: 1000 W Peak MAX SPL @ 1m: 119.5 dB Continuous, 122.5 Peak (calculated) SPEAKER SPECIFICATION: 15" (381mm) low-frequency driver; 2.5" (64mm) voice coil; 4 x 6.5" (165mm) mid-frequency driver; 1.5" (38mm) voice coil 2 x 1" (25mm) high-frequency compression driver; 1" (25mm) voice coil CROSSOVER FREQUENCIES: Active: 125 Hz at 12 dB/Oct. Passive: 3 KHz at 12 dB/Oct. with Electronic Dynamic Protections AMPLIFIER SECTION: IMPEDANCE: Low: 4 Ω Mid/High: 8 Ω PROTECTIONS: Soft start, short circuit, DC output voltage, thermal, subsonic filter (30 Hz), 24 dB/Oct., limiter/compressor DIMENSIONS (W x D x H): 41.2" x 27.6" x 27.6" (1060mm x 700mm x 700mm) (compact) WEIGHT: 111.8 lbs (50.7 kg) Inrush current at initial switch-on: 25.32A Inrush current after power supply interruption: 11.23A

• Specifications are subject to change without notice.www.altoprofessional.com