All material © 2007. Martin Audio Ltd. Subject to change without notice.
power rating for transient musical peaks.
1) Choose amplifiers capable of delivering the loudspeaker’s
Peak
power rating – see below
2) For good spectral balance, set your amplifiers to the same voltage gain throughout the system. A
common industry standard voltage gain is 32dB (x40). Crown have a 26dB (x20) standard. Always check
the amplifier
gain
settings – these are usually on the rear panel. Avoid using
sensitivity
settings as these
give different gains depending on the amplifier’s power specification.
3) Use the M3
+
’s carefully timed limiters to avoid exceeding the
AES
long-term power rating.
Important: See section 10 for limiter setting information
This policy avoids clipping transient peaks. Clipping not only sounds unacceptable but can seriously stress
your system by dumping large amounts of distortion into the high frequency drivers.
Blackline
+
model
Peak power rating
Suggested power amplifier
Minimum
Recommended
F8
+
600W into 8
Ω
MA1.3s
MA1.6s/
MA4.8Q*
F10
+
/ F12
+
1.2KW into 8
Ω
MA1.6s/
MA4.8Q*
MA2.8s/
MA6.8Q*
F15
+
1.6KW into 8
Ω
MA2.8s
MA4.2s
F215
+
3.2KW into 4
Ω
MA2.8s
MA4.2s
H3
+
/ H3H
+
LF: 3KW into 8
Ω
MA2.8s
MA4.2s
MF-HF: 1.2KW into 8
Ω
MA1.6s
MA2.8s
H3T
+
LF: 3KW into 8
Ω
MA2.8s
MA4.2s
MF: 1.2KW into 8
Ω
MA1.6s
MA2.8s
HF: 400W into 8
Ω
MA1.3s
MA1.6s
S15
+
1.6KW into 8
Ω
MA4.2s
MA9.6K
S18
+
3KW into 8
Ω
MA12K
MA18K
S218
+
6KW into 4
Ω
MA12K
MA18K
(*MA4.8Q & MA6.8Q are 4ch installation amplifiers featuring remote monitoring and power on/off facilities)
6 Connections
Each connector panel has two Neutrik Speakon connectors wired in parallel with each other. The second
connector allows use of a short link lead to power another, parallel Blackline
+
loudspeaker. The connectors
are wired as follows:
F8
+
, F10
+
, F12
+
, F15
+
, F215
+
,
S12
+
,
S15
+
,
S18
+
NL4 connection
