Yamaha Speaker System Owner's Manual

Thank you for choosing the YAMAHA speaker system. This manual provides essential information for the safe and optimal use of your speaker system. Please read it carefully before operation and keep it for future reference.

Important Safety Precautions

WARNING: To avoid serious injury or death from electrical shock, short-circuiting, damage, fire, or other hazards:

Do not open: Never open the device or attempt to modify internal parts. Service should only be performed by qualified Yamaha service personnel.
Water warning: Do not expose the device to rain, moisture, or place liquid-containing containers on it.

CAUTION: To avoid physical injury or damage to the device:

Location: Ensure speaker stands are sturdy and properly used. Limit access around stands to prevent toppling. Use stands with legs fully opened, mount only one speaker per stand, and tighten screws securely. Remove speakers before moving or adjusting stands. Add weight to stand legs for stability. Maximum stand height is 140 cm (55"). For subwoofers with pole mounts, use poles shorter than 90 cm (35.4") with a 35 mm (1-3/8") outer diameter.
Handling: Always use two or more people when transporting or moving the device. Remove all cables before moving. Do not use handles for suspended installation. Avoid excessive dust, vibration, extreme temperatures, or direct sunlight. Do not place the device in unstable positions.
Connections: Turn off power to all devices before connecting or disconnecting. Set all volume levels to minimum before powering on/off. Use only speaker cables for speaker connections. Connecting impedance loads outside the amplifier's rated range can damage the amplifier.
Handling Caution: Turn the power amplifier on last and off first in any audio system to prevent speaker damage. Do not operate at high volume levels for extended periods, as this can cause permanent hearing loss. Discontinue use if sound distorts, as this may indicate overheating.

Hearing Protection: This product, when used with amplification and other loudspeakers, may produce sound levels capable of causing permanent hearing loss. Avoid operating at high or uncomfortable volume levels. Consult an audiologist if you experience discomfort, ringing in the ears, or suspect hearing loss.

Protecting Your Speakers: Match the amplifier's power output to the speakers' power capacity. Clipping of high input signals can damage speakers. Avoid feedback from microphones, continuous high sound pressure levels from electronic instruments, continuous high-power output distorted signals, and popping noises from connecting/disconnecting components while the amplifier is on.

Poly Switch: Full-range loudspeakers are equipped with a self-resetting poly switch to protect the high-frequency driver. If high-frequency output is lost, remove power for 2-3 minutes to allow the poly switch to reset. For subwoofers, the poly switch protects the woofer; follow the same procedure if output is lost.

Polarity: Ensure correct polarity when connecting multiple speakers (connect "+" to "+" and "-" to "-") to avoid phase issues. Use only Neutrik NL4FC plugs for Speakon connectors.

Yamaha is not responsible for damage caused by improper use or modifications.

Illustrations are for explanatory purposes only.

Connecting the Speakers

Phone Plug Wiring: Use proper speaker cable. Connect as shown in the diagram for phone jack inputs.

Neutrik Speakon NL4FC Plug Wiring: Use proper speaker cable. Connect as shown in the diagram for Neutrik connectors.

Full-range Connection: Speakers (except C112VA/C115VA) feature four input/parallel connectors (two 1/4" phone jacks and two Neutrik Speakon NL4MP connectors). Use either type for input. Spare connectors can be used to parallel-connect additional speakers, observing impedance considerations.

Impedance Considerations: When paralleling speakers, check the power amplifier's rated load impedance. A pair of parallel-connected 8-ohm speakers results in a 4-ohm total impedance. Two 8-ohm speakers can be paralleled on one output. 4-ohm speakers should not be paralleled with other speakers unless the amplifier can safely drive 2-ohm loads or lower.

System Diagram (Full-range): A typical system includes a mixing console, graphic equalizer, power amplifier, and speaker systems.

Subwoofers and P-Series Power Amplifiers: Adding subwoofers can enhance dynamic range and sound quality. Input line-level audio into Yamaha P-series power amplifiers (P7000S/P5000S/P3500S/P2500S). Separate frequency bands are outputted from the amplifiers for full-range speakers and subwoofers.

System Diagram (with Subwoofers): A system with subwoofers involves a mixing console, two-channel graphic equalizer, P-series power amplifiers, full-range speaker systems, and subwoofers. Amplifiers output low-cut frequencies for full-range speakers and subwoofer signals for subwoofers, typically around 90Hz.

Suspended and Bracket Installation

Consult an installation expert for installation or construction. Ensure suspension wire, location, and hardware are strong enough for the speaker's weight. Regular checks of fittings are recommended due to potential deterioration.

Yamaha is not liable for damage or injury from insufficient support structures or improper installation.

Suspended Installation:

The C112VA and C115VA can be suspended using appropriate wire. Replace bolts with supplied eyebolts (3/8"). Use two or more eyebolts marked with a square symbol. Do not suspend a speaker from another suspended speaker. Adjust speaker angle by varying suspension wire lengths; the downward tilt angle must not exceed 45 degrees.

Bracket Installation:

The C112VA has bracket-mounting screws on the top, bottom, and sides. Optional brackets (Wall: BWS251-300, BWS251-400; Ceiling: BCS251; Baton: BBS251) can be used for mounting. Use only specified screws (W5/16") to attach brackets. Refer to the bracket's instruction manual for details.

Specifications

Detailed specifications for various Yamaha speaker models are provided in tables, including enclosure type, speaker units (LF/HF), frequency response, power capacity (NOISE, PGM, MAX), nominal impedance, sensitivity, nominal dispersion (horizontal/vertical), crossover frequency, input connectors, dimensions (W x H x D), weight, and included accessories.

Models covered include:

Full-range: CM10V, C112V, C112VA, CM12V, C115V, C115VA, CM15V, C215V
Subwoofers: CW115V, CW118V, CW218V

Performance Data: Frequency response and impedance graphs are provided for CM10V, C112V/CM12V/C112VA, CW115V, CW218V, C115V/CM15V/C115VA, C215V, and CW118V.

Directivity Data: Horizontal and vertical directivity polar plots are provided for CM10V, C112V/CM12V/C112VA, C115V/CM15V/C115VA, and C215V at various frequencies (4kHz, 8kHz, 16kHz).

Contact Information

For product details, please contact your nearest Yamaha representative or authorized distributor. Contact information for North America, Central & South America, Europe, Africa, Middle East, Asia, Oceania, and Pacific Ocean countries is provided, along with the Head Office address for Yamaha Corporation, Pro Audio & Digital Musical Instrument Division.

Websites:

Yamaha Pro Audio: http://www.yamahaproaudio.com/
Yamaha Manual Library: http://www.yamaha.co.jp/manual/

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