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ENGLISH

■ 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).

■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
*: EIA RS-426
Model AX10 AX12 AX15 AX12M AX15M AX15W
Enclosure 2 way Bass reflex type Bass reflex type
Speaker Unit LF 10" cone 12" cone 15" cone 12" cone 15" cone 15" cone
HF 1" VC, Horn-TW —
Frequency Response 65Hz-20kHz 60Hz-20kHz 50Hz-200Hz
Power Capacity
NOISE* 125W 150W 200W 150W 200W 250W
PGM 250W 300W 400W 300W 400W 500W
MAX 500W 600W 800W 600W 800W 1000W
Nominal Impedance 8Ω
Sensitivity
96dB SPL (1W
,
1m) 97dB SPL (1W, 1m) 98dB SPL (1W, 1m) 97dB (1W, 1m) 98dB SPL (1W, 1m) 97dB (1W, 1m)
Input Connectors 1/4" phone jack × 1, SPEAKON Neutrik NL4MP × 1
1/4" phone jack × 2,
SPEAKON Neutrik
NL4MP × 2
Dimensions (W×H×D) 385 × 538 × 297 405 × 578 × 313 470 × 668 × 375 578 × 405 × 325 668 × 470 × 355 485 × 618 × 505
Weight 12.5kg 16.5kg 21.5kg 16.5kg 20kg 26.5kg
AX10/AX12/AX15 AX12M/AX15M AX15W
Unit: mm
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.