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Reference Material, cont’d
MLS 304 Series, MLS 406 Series • Reference Material
A-4
PRELIMINARY
Included parts
Audio input
Number/signal type
MLS 304 Series ................... 4 stereo, unbalanced
1 Aux/Mix balanced/unbalanced mono (nonswitchable)
MLS 406, Series .................. 5 stereo, unbalanced (inputs 1-3, 5, 6)
1 stereo, balanced/unbalanced (input 4)
1 Aux/Mix balanced/unbalanced mono (nonswitchable)
Connectors
MLS 304 Series ................... 2 pairs of female RCA connectors (inputs 1-2)
2 female 3.5 mm mini stereo jacks (unbalanced only) (inputs 3-4);
tip (L), ring (R), sleeve (GND)
(1) 3.5 mm captive screw connector, 3 pole (Aux/Mix input)
MLS 406 Series ................... 3 pairs of female RCA connectors (inputs 1-3)
1 female 3.5 mm captive screw connector, 5 pole (input 4)
2 female 3.5 mm mini stereo jacks (unbalanced only) (inputs 5, 6);
tip (L), ring (R), sleeve (GND)
(1) 3.5 mm captive screw connector, 3-pole (Aux/Mix input)
Impedance
..................................... >10k ohms unbalanced, DC coupled
Nominal level ................................ -10 dBV (316 mVrms)
Maximum level ............................. +8 dBV (10.2 dBu, 2.51 Vrms), unbalanced at <0.1%THD+N
+10 dBu (7.28 dBV, 2.45 Vrms), balanced at <0.1% THD+N
Input gain adjustment ................. -42 dB to +24 dB, adjustable per input
N
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu
Audio output — Lineout and Preamp
Number/signal type .................... 2 (1 Lineout/fixed and 1 Preamp/variable) stereo/mono, balanced/
unbalanced
Connectors .................................... (2) 3.5 mm captive screw connectors, 5 pole
Impedance ..................................... 50 ohms unbalanced, 100 ohms balanced
Gain error ...................................... ±0.8 dB channel to channel
Nominal level ................................ Configurable: -10 dBV (316 mVrms, default), +4 dBu (1.23 Vrms)
Maximum level (600 ohm)
Power amp (mono or stereo)
>+17 dBu, balanced < 0.5% THD+N
Preamp ................................ >+19 dBu, balanced < 0.1% THD+N
Lineout ................................ >+16 dBu, balanced < 0.1% THD+N
N
Unbalanced wired outputs produce 6 dB of attenuation. Balanced outputs have unity
gain/attenuation.
Audio output — mono power amp (MLS 304MA, MLS 406MA only)
Number/signal type .................... (1) mono
Connector ...................................... (1) 5-position screw terminal
Sensitivity ....................................... -20 dBV (-17.8 dBu; 100 mVrms) (adjustable) for maximum power
output
Power bandwidth
Direct (4 ohm) .................... 20 Hz to 20 kHz, ≤ 0.5% THD
Direct (8 ohm) .................... 20 Hz to 20 kHz, ≤ 0.15% THD
Transformer (70 V) ............ 50 Hz to 20 kHz, ≤ 1% THD
Transformer (100 V) .......... 50 Hz to 20 kHz, ≤ 0.5% THD