Yorkville Sound AP312 User Manual

fresh ears. The mix should sound invitingly loud, but not painful.

 •  In basic terms, if you find that you’ve turned up the high end since the night 

began and it still sounds the same to you as it did at the beginning, watch out. 

That’s not “fatigued horns” or “changing room acoustics” rolling off the high end, 

it’s your ears. Please do yourself and your audiences a favor - USE EARPLUGS! 

And if you can’t bring yourself to do that, be considerate of your audiences and 

leave the high-end EQ or crossover at normal setting

Number of Channels 12

Mono Channel EQ (ch.1 to 8) Low, Mid, High

Stereo Channel EQ (ch. 9/10 & 11/12) Low, High

Channel Effects All Channels

Monitors Effects Yes

Balance Controls All Channels

Pan Controls All Channels

Inputs - XLR (bal) Ch. 1 - 8

Inputs - 1/4-inch Ch. 1 - 12

Inputs - RCA (unbal) 2 Stereo Sets

Clip /Mute LED All Channels

Phantom Power 24 V + LED indicator

VU Meter 2 x 5 LED

Headphone Monitor Features Cue , Volume

Internal Effects Digital 16 Bit; 255 Effects

Effects Send 1 Internal

Reverb / Effects Footswitch Yes

Max Gain to Line Out -Mic Input (dB) 63

Max Gain to Line Out -Line Input (dB) 45

Master EQ -1 (type /Channels /Range - dB) Graphic / Mono / 9 Band 63 Hz - 16,000 Hz
Master EQ -2 (type /Channels /Range - dB) Graphic / Mono / 9 Band 63 Hz - 16,000 Hz

Main Outputs ( Line Level) 4 , 1/4 inch (TRS) 2 pre, 2 post EQ

Main Amp Inputs (Line Level) 2 , 1/4 inch (TRS)

Monitor Outputs (Line Level) 1, 1/4 inch (TRS)

Outputs - Amp A - 1/4-inch Jacks 2
Outputs - Amp A - Speakon 4-pin 1 (Euro only)
Outputs - Amp B - 1/4-inch Jacks 2
Outputs - Amp B - Speakon 4-pin 1 (Euro only)

Mixer THD (Main out w/ -10dB input) less than 0.05%

Amp A - Power Output @ 8 Ohms (0%1"THD, 1kHz) 160

Amp A - Power Output @ 4 ohms 100

Amp B - Power Output @ 8 Ohms (0%1"THD, 1kHz) 160

Amp B - Power Output @ 4 ohms 100

THD - 1kHz (dB) less than 0.03%

Hum and Noise (un / Aweight -dB) -90

Typical crosstalk -1 kHz (dB) -66

Input Impedance - Bal/Unbal (ohms) 22,000 - 12,000

Input Sesitivity (Vrms Sine) 1.47 V

CMRR @ 60Hz (min/typ) 54 dB / 66 dB

Max Votage Gain (dB) 29

Power Consumption (typ/max) 220 VA / 550 VA

Protection Thermal / Load / DC

Cooling Variable Speed DC Fan

Transformer Type Toroidal

Finish Scratch Resistant Vinyl-Coated Aluminum

Chassis Construction Steel

Rackmount Yes (RK812)

Other Features Selectable stereo mains or mono mains & monitor.

Dimensions (DWH, inches) 18 x 19 x 5.5

Dimensions (DWH, cm) 45.7 x 48.3 x 14

Weight (lbs/kg) 38 / 17.3