
Martin Audio – MA2.8s Amplifier
ENGLISH
18
12 SPE C IF I C A TI O NS MA 2 . 8 S
MA XIM UM O U TP UT P O WE R
ML S in 0d B p os ition
E IA @ 1 k H z 1 %thd FT C 2 0 – 2 0kHz @ 0.1% thd
8Ω p er C ha n ne l
1 10 0W 1 00 0W
4Ω p er C ha n ne l
1 50 0W 1 45 0W
2Ω p er C ha n ne l
1 70 0W 1 65 0W
8Ω B rid ge d
3 00 0W 2 90 0W
4Ω B rid ge d
3 40 0W 3 30 0W
M AX IM UM OU TP U T VO LT A GE
8Ω lo ad 9 4V rm s
P ea k vo lta ge , n o lo a d 1 35 Vrms
P OW ER R E QU IR E ME NT S 2 30 V ve rsion 1 15 V ve rsion
O pe ra tin g vo lta ge 1 30 – 2 7 0 Va c65 – 13 5 Va c
M in im um start u p vo lta ge 1 75 Va c 8 5V ac
P ea k in rush curre nt 5 A 5 A
M AINS C U RR EN T D RA W @ 4 O h ms 2 3 0v v ers io n 1 15 V ve rsion
Q uiesce n t cu rre nt (n o lo a d) 1 .0 A rm s 2 .0 A rm s
1 /8
t h
Fu ll p o we r (bo th ch an ne ls drive n) 5 .0 A rm s 1 0 Arms
1 /3
r d
Fu ll p o we r (bo th ch an ne ls drive n) 1 1.0 Arm s 2 8 Arms
F ull po w er (1 Kh z @1 % thd ) 2 6.0A rm s 5 2.0 Arm s
D IS TO RT ION
T HD 2 0H z – 2 0 KH z 1W to fu ll p ow e r 0 .0 8%
T HD @ 1 K Hz 1 d B be lo w clip 0 .0 3%
D IM 3 0 @ 3 dB be lo w clip 0 .0 2%
H UM / N O IS E < -10 5d B
C HA NN EL SE PE R AT IO N -80 dB
O UT PU T IMP ED A NC E 6 0mΩ
S LE W RA T E 2 0V µ S
Imp ed an ce 2 0K Ω Differe ntia l
1 0KΩ Sing le en de d
c.m .r.r. 5 0d B
D IM EN SIO NS (W) 4 83 m m x (H) 8 8m m x (D) 3 93 m m (in cl. Ha n dles)
(W) 1 9in s x (H) 3 .5 ins x (D ) 15 .5ins (incl. Ha nd les)
Inp ut d Bu + 2 1.6 + 1 8.6 + 1 5.6 + 12 .6 + 9 .6 + 6 .6
35
38 41
2
.6 + 0 .6
Inp ut V rms 9 .4 0 6 . 6 5 4 . 7 0 3 . 3 4 2 . 3 6 1 . 6 7 1 . 1 8 0 . 8 4
INP UT S
D IP switch se le ctab le ga in Re f
4Ω fo r fu ll po w er M LS 0d B
G ain dB 2 0 2 3 2 6 2 93
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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