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I Subwoofer Parallel-connection
The subwoofer AX15W features four input/parallel connectors—two 1/4" phone jacks and two Neutrik NL4MP
connectors. Use either a phone jack or a Neutrik connector to receive input from your sound system/power ampli-
fier. One of the spare connectors can be used to parallel-connect an additional main speaker (keeping in mind the
impedance considerations mentioned below).
I Impedance Considerations
When connecting speakers in parallel be sure to check the rated load impedance of the power amplifier. Most power
amplifiers are capable of safely driving speakers with minimum impedance of 8 ohms or 4 ohms. A pair of parallel-
connected 8-ohm speakers have a total impedance of 4 ohms. The AX10/AX12/AX15/AX12M/AX15M are 8-ohm
speakers, and two of these can safely be paralleled on one output. Two or more speakers can be connected in paral-
lel, however, if you are using a power amplifier that can safely drive load impedances of 4 ohms or lower.
Specifications
Model
Enclosure
LF
Speaker Unit
HF
Frequency Response
65Hz-20kHz
NOISE*
Power Capacity
PGM
MAX
Nominal Impedance
Sensitivity
96dB SPL (1W , 1m) 97dB SPL (1W, 1m) 98dB SPL (1W, 1m)
Input Connectors
385 × 538 × 297
Dimensions (W×H×D)
Weight
: EIA RS-426
*
AX10/AX12/AX15
Specifications and descriptions in this owner's manual are for information purposes only. Yamaha Corp.
reserves the right to change or modify products or specifications at any time without prior notice. Since specifi-
cations, equipment or options may not be the same in every locale, please check with your Yamaha dealer.
AX10
AX12
10" cone
12" cone
125W
150W
250W
300W
500W
600W
1/4" phone jack × 1, SPEAKON Neutrik NL4MP × 1
405 × 578 × 313
12.5kg
16.5kg
AX12M/AX15M
AX15
AX12M
2 way Bass reflex type
15" cone
12" cone
1" VC, Horn-TW
60Hz-20kHz
200W
150W
400W
300W
800W
600W
8Ω
97dB (1W, 1m)
470 × 668 × 375
578 × 405 × 325
21.5kg
16.5kg
AX15M
AX15W
Bass reflex type
15" cone
15" cone
—
50Hz-200Hz
200W
250W
400W
500W
800W
1000W
98dB SPL (1W, 1m)
97dB (1W, 1m)
1/4" phone jack × 2,
SPEAKON Neutrik
NL4MP × 2
668 × 470 × 355
485 × 618 × 505
20kg
26.5kg
AX15W
Unit: mm
5