KRAMER 104M 1:4 Dynamic Microphone Distribution Amplifier

INPUT:    1 mono microphone, 5mVpp/10kΩ on a 6.5mm phone jack.
OUTPUTS:    4 mono line level, 1Vpp/150Ω on 6.5mm phone jacks.
MAX. OUTPUT LEVEL:    4.8Vpp.
AUDIO BANDWIDTH (-3dB):    37kHz.
GAIN CONTROL:    5dB to 54dB.
S/N RATIO:    78dB.
THD @1kHz:    0.1%.
POWER SOURCE:    12V DC, 20mA.
DIMENSIONS:    12cm x 7.5cm x 2.5cm (4.7” x 2.95” x 0.98”) W, D, H.
WEIGHT:    0.28kg (0.62lbs) approx.
ACCESSORIES:    Power supply, mounting bracket.
OPTIONS:    RK-3T 19" rack adapter.

INPUTS:    5 unbalanced stereo audio, 1Vpp/50kΩ on RCA connectors.
OUTPUT:    1 unbalanced stereo audio, 1Vpp/100Ω on RCA connectors.
MAX AUDIO OUTPUT:    3Vpp.
AUDIO BANDWIDTH (-3dB):    100kHz.
GAIN RANGE:    60dB (via underside accessible trimmers).
AUDIO S/N RATIO:    Better than 78dB.
CONTROL:    5 front panel buttons, contact closure via the link connector.
THD:    Less than 0.08%.
POWER SOURCE:    12V DC, 100mA.
DIMENSIONS:    16.5cm x 12cm x 4.5cm (6.5” x 4.7” x 1.8”) W, D, H.
WEIGHT:    0.62kg (1.4lbs) approx.
ACCESSORIES:    Power supply.
OPTIONS:    RK-1 19" rack adapter.

INPUTS:    8 unbalanced stereo audio, on RCA type connectors.
OUTPUT:    1 unbalanced stereo audio, on RCA type connectors.
SWITCHING SYSTEM:    Mechanical, break-before-make.
CROSSPOINTS:    1 of 8.
SIGNAL LEVELS:    Up to +30dBu.
BANDWIDTH(-3dB):    25kHz.
DIMENSIONS:    18.8cm x 10.2cm x 4.4cm (7.4” x 4” x 1.7”) W, D, H.
WEIGHT:    0.64kg (1.4lbs) approx.
OPTIONS:    RK-81 19” rack adapter.

INPUTS:    4 balanced stereo audio +4dBu/50kΩ on XLR (F) connectors.
OUTPUTS:    20 balanced stereo audio +4dBu/50Ω on XLR (M) connectors.
MAX. OUTPUT LEVEL:    23.8Vpp.
BANDWIDTH (-3dB):    >100kHz.
S/N RATIO:    89.3dB.
CROSSTALK:    -78dB.
CONTROLS:    Level (x4): -0.7dB to +5.1dB, mode selector switches.
COUPLING:    AC (input); DC (output).
AUDIO THD + NOISE:    0.081%.
AUDIO 2nd HARMONIC:    0.006%.
POWER SOURCE:    230V AC, (115V AC USA), 15VA.
DIMENSIONS:    19" x 7" x 2U W, D, H, rack mountable.
WEIGHT:    3.5kg (7.7lbs) approx.
ACCESSORIES:    Power cord, rack "ears“.

INPUTS:    2 balanced stereo audio +4dBu, 100kΩ on terminal block connectors.
OUTPUTS:    8 (or 2 x 4) balanced stereo audio, +4dBu, 50Ω on terminal block connectors.
MAX. AUDIO OUTPUT:    20Vpp.
AUDIO BANDWIDTH (-3dB):    20kHz.
GAIN RANGE:    0.2 to 5.8dB (4 trimmers, 2 for each input channel).
S/N RATIO:    100dB/1V.
CROSSTALK:    -60dB@1kHz.
CONTROLS:    Front selector switches for 1:8 or 2x1:4 operation, 4 front accessible gain trimmers.
COUPLING:    AC (input), DC (output).
THD+NOISE:    0.02%.
POWER SOURCE:    230V AC, 50/60Hz (115V AC USA), 6.7VA.
DIMENSIONS:    22cm x 18cm x 4.5cm (8.7” x 7” x 1.8”) W, D, H (1/2 19”).
WEIGHT:    1.2kg (2.7lbs) approx.
ACCESSORIES:    Power cord.
OPTIONS:    RK-1 19" rack adapter.

INPUTS:    16 balanced stereo audio, +4dBu/10kΩ on detachable terminal blocks.
OUTPUTS:    16 balanced stereo audio, +4dBu/50Ω on detachable terminal blocks.
MAX. OUTPUT LEVEL:    20Vpp.
BANDWIDTH (-3dB):    100kHz.
S/N RATIO:    82.2dB unweighted.
CROSSTALK:    -80dB @1kHz.
CONTROL:    Front panel buttons, RS-232, RS-485, contact closure, & IR remote (included).
COUPLING:    AC.
AUDIO THD + NOISE:    0.04%.
AUDIO 2nd HARMONIC:    0.002% @1kHz.
POWER SOURCE:    115/230V AC, 50/60Hz, 23VA.
DIMENSIONS:    19" x 7" x 2U W, D, H, rack mountable.
WEIGHT:    3.5kg (7.8lbs) approx.
ACCESSORIES:    Power cord, Windows®-based Kramer control software, null-modem adapter, rack "ears“.