Alesis Studio 12R 12-Channel Analog Mixing Console

Alesis Studio 12R 12-Channel Analog Mixing Console

The Alesis Studio 12R is a high-quality, rack-mountable 12-input,stereo output audio mixer. It is designed to handle eightmicrophones, two stereo line inputs, and to route signal to and
from external effect processing devices. As a basic, easy-tounderstand mixer, it can be used in a wide variety of applicationsfrom sound reinforcement to multitrack recording. It may also beused as an accessory or submixer to a larger console.

Specifications

Frequency Response
10 Hz 65 kHz +0/-1 dB (any input to any output at
nominal operating levels)
-3dB Point: 125 kHz

Connectors
MIC IN jacks: Female XLR
(Pin 1 ground, Pin 2 +, Pin 3 -)

LINE IN jacks: Female 1/4″ 3-conductor phone
(Tip = +, ring = -, sleeve =ground)

INSERT jacks: Female 1/4″ 3-conductor phone
(Tip = send, ring = return, sleeve= ground)
Inserting plug to first “click”allows direct output withoutbreaking normal signal flow

STEREO LINE IN andSTEREO AUX RETURN jacks: Female 1/4″ 3-conductor x 2

MAIN OUT BALANCED,MONITOR OUT, andAUX SEND jacks: Female 1/4″ 3-conductor phone(Tip = +, ring = -, sleeve =ground)

MAIN OUT -10 dBV jacks: Female phono (“RCA”) jacks
TAPE IN jacks: Female phono (“RCA”) jacks

Levels
MIC IN -60 dBu to -10 dBu nominal,maximum level +12 dBu
LINE IN -40 dBu to +10 dBu nominal,maximum level +32 dBu(balanced)
STEREO LINE IN -15 dBu to +15 dBu nominal,maximum input level +22 dBu
MAXIMUM GAIN +76 dB, MIC IN to MAIN OUT,balanced+80 dB, MIC IN to MONITOROUT, balanced or unbalanced
CHANNEL PEAK LED ON: 6 dB below channel clipping
METER: Peak type-24 dB to PK (+18 dB over
reference at MAIN OUT, 6 dBbefore output clipping)
MAIN OUT LEVEL (1/4″ phone jacks) (when meter is at 0 VU)+4 dBu (1.24 volts)into a balanced load-2 dBu into an unbalanced load
MAIN OUT LEVEL (phono jacks) -10 dBV (.316 volts) unbalanced
MAXIMUM OUTPUT LEVEL +22 dBu unbalanced, +28 dBubalanced (6 dB above “PK”
segment of main meter)
MONITOR OUT LEVEL Same as above, but variablefollowing MONITOR/PHONES
control
INSERT/DIRECT OUT (tip) Unity gain
INSERT IN (ring) Maximum level +22 dBu
HEADROOM: 23.5 dB above nominal output

Impedance
MIC IN 50-150 nominal sourceimpedance (presents 4 k
balanced load impedance)
LINE IN 600 -2 k nominal(>20 k load impedance)
OUTPUTS (MAIN, AUX andMON): 150 unbalanced,300 balanced1.1 k at -10dBV MAIN OUTS

Noise performance (typical)
Measured at MAIN OUT +4 dBu jacks, unbalanced load, 22 Hz to 22 kHz, allchannels panned to center.
MIC IN to INSERT OUT: -128.5 dBu Equivalent InputNoise at maximum gain
Residual output noise (MASTER fader at nominal, channel faders atminimum):<-88 dBu
12 inputs, faders and trims at unity gain, inputs terminated 150:<-85 dBu unbalanced(+22 dB max unbalanced out =107 dB dynamic range) Distortion (THD+N)
Measured with a 0 dBu signal coming into a MIC IN jack with trim set for a
+15 dBu output from the insert jack.
At INSERT jack: Better than 0.0010%
At MAIN OUT (+21 dBu balanced output level)Better than 0.0015%

Power
U.S.A. model: 120 VAC, 60 Hz, 40 watts powerconsumption maximum

Mounting
19″ EIA rack mountable, 3 spaces