Alto Professional 800 FX Specs

Mixer
Number of Analog Input Channels 6 (4 Mono / 2 Stereo)
Number of Mic Preamps 4
Analog Output Channels 1 x Stereo Master Output
4 x Stereo Headphone Output
1 x Stereo Tape/Record Output
1 x Stereo Control Room/Monitor Output
1 x Mono Aux Send Output
Mix Routing 2 x Stereo Main Mix per Main Mix Channel (LCR Main Mix Combines Stereo and Mono Main Mixes)
Faders & Level Adjustment 7 x Channel Knob
1 x Master Knob
3 x FX Knob
Meters Main Meter:
1 x 8-Segment LED
Meter Range Main Meter:
-30 dB to +6 dB Peak/Clip
Signal Processing
Gain/Trim Range XLR Mic Input:
0 dB to +50 dB
1/4" Line Input:
15 dBu to 35 dBu
1/4" Stereo Line Input:
-20 dBu to -20 dBu
Input Polarity Fixed
Dynamic Processing None
Sidechain Filters None
EQ 2-Band Shelving
EQ Parameters High: ±15 dB at 12 kHz (Shelving)
Low: ±15 dB at 80 Hz (Shelving)
Graphic EQ None
Solo/Mute None
Channel Output/Source Monitoring AFL, Insert Return
Built-In Effects Yes
Digital Audio
Bit Depth AD/DA Conversion:
24-Bit
DSP 20-Bit
Performance
Frequency Response 20 Hz to 22 kHz ±1 dB
Max Input Level XLR Mic Input:
70 dB (To Main Out)
XLR Mic Input:
80 dB (To Phones Out)
1/4" Line Input:
60 dB (To Aux Send)
Headphone Output Power 1/4": 160 mW into 32 Ohms
I/O Impedance XLR Mic Input:
3.9 Kilohms (Balanced)
Input:
> 10 Kilohms
1/4" Aux Output:
1 Kilohms (Unbalanced)
Output:
120 Ohms
Crosstalk Adjacent Inputs:
-80 dB at 1 kHz
Input to Output:
< -75 dB at 1 kHz ((Stereo L/R, Channel 1, Panned Hard Left or Right)
SNR > 110 dB (All Inputs)
THD+N 0.005% (+4 dBu, at 1 kHz)
Connectivity
Analog Inputs 4 x XLR 3-Pin Balanced Mic Input
4 x 1/4" TRS Balanced Line Input (2 Stereo Pairs)
4 x 1/4" TRS Hi-Z Input
2 x 1/4" TRS FX Input (1 Stereo Pair)
2 x RCA Coaxial Unbalanced 2-Track Input (1 Stereo Pair)
Analog Outputs 2 x 1/4" TRS Balanced Main Output (1 Stereo Pair, Post-Fader)
2 x 1/4" TRS Control Room Output (1 Stereo Pair, Post-Fader)
2 x 1/4" TRS FX Output (1 Stereo Pair)
4 x 1/4" TRS Stereo Headphone Output (Post-Fader)
2 x RCA Coaxial Unbalanced Record/Tape Output (1 Stereo Pair, Post-Fader)
Phantom Power +48 V, Selectable On/Off (Applied to All Inputs)
Digital I/O None
MIDI I/O None
USB 1 x USB-B (2-Track Record, Audio Playback)
USB I/O Capacity 2 x Input / 2 x Output
Wireless Bluetooth 5.0 
Bluetooth 5.0
Mobile App Compatible No
*As of April, 2023: Check with manufacturer for the most up-to-date compatibility
Recording
Max Multitrack Recording 2 Tracks
Compatibility
OS Compatibility Windows 10
Windows 11
macOS
*As of April, 2023: Check with manufacturer for the most up-to-date compatibility
Required Hardware USB 2.0 Port, USB Cable
Power
AC Input Power None
Power Supply Output 18 VDC at 1.2 A (Included)
Power Consumption 21.6 W
Current Consumption 1.2 A
Physical
Rack Mountable No
Dimensions 12 x 9.4 x 3.1" / 30.5 x 23.8 x 7.9 cm (Desk-Mounted)
Weight 4.5 lb / 2 kg
Packaging Info
Package Weight 5.47 lb
Box Dimensions (LxWxH) 14.7 x 13.5 x 6.6"