雅马哈YAMAHA  MSR800W  单15吋有源超重低频音箱

一套高品质音响系统需要扬声器和放大器的配合。雅马哈推出的 MSR800W 放大器充分的考虑了用户的需求。它既可以单独使用，也可以将其搭配 MSR400 扬声器组成一套的音响系统。

 MSR800W 放大器的主要特征和技术参数如下： 15 英寸低频驱动器，500 W RMS

 频率响应范围： 40Hz-120Hz 。连接端口： 2 个卡侬头。

Great PA sound has never been easier... Or better looking

Much of the work in putting together a high-performance sound system involves amplifier and speaker selection and setup. Here are a pair of solutions that can take you directly to great sound without the usual complications. The MSR400 powered speaker can be used alone or in combination with the MSR800W powered subwoofer to assemble sound reinforcement systems from modest to massive. They look great, too. So good, in fact, that they can be used as-is in many permanent installations without requiring any cosmetic cover-up. And, of course, they're more than rugged enough for demanding tour applications as well.

Whether for use on the road or in permanent installations, powered speakers offer numerous advantages over their separate counterparts. The most obvious is that you don't need separate external amplifiers or the extra connections required -- you can plug your mixer's outputs directly into the speaker inputs. In a modest-size system this alone can eliminate an entire rack of amplifiers. But there are sonic advantages as well. Optimum matching of amplifiers and speakers involves much more than simple impedance figures, and can be a formidable engineering task given the vast number of choices available. In the Yamaha MSR400 and MSR800W the internal amplifiers have been ideally mated to their respective speakers in every way possible, delivering reproduction quality that only such stringent matching can achieve.

The MSR800W subwoofer takes care of the ultra-lows so the audience hears -- and feels -- the full impact of the music.

The MSR800W powered subwoofer is the perfect companion for the MSR400, extending the low end and completing the musical spectrum for maximum punch and impact. The high-quality birch plywood bass-reflex cabinet houses a 15 in. cone woofer powered by an ultra-efficient burst 800 watts amplifier, a configuration that can deliver the elusive 40 Hz through 120 Hz frequency range with precision and authority. Two balanced XLR connectors are provided for connection to the source, and that same signal can be directly passed on to the main speakers via a pair of XLR "thru" outputs. Alternatively, the main speakers can be fed by the MSR800W's dual "high pass" outputs, high-pass filtered at 80 Hz through 100 Hz, depending on the setting of the cutoff frequency control, with a steep 18 dB/octave cutoff slope.

Technical Info

General:

-- Type: powered subwoofer

-- Overall frequency response: 40-120 Hz

-- Maximum SPL: 122 dB (1 m)

-- Dimension (W x H x D): 23-5/8 x 20-5/8 x 23-1/4 in. (600 x 521 x 590 mm)

-- Weight: 45kg (99.1lbs)

Speaker section:

-- Components: 15 in. cone

-- Enclosure: bass-reflex type

-- Material: birch plywood

-- Finish: black sprayed

Amp section:

-- Output power: 500W at 100Hz. THD =1%, RL = 8; burst power: 800W

-- Input sensitivity/impedance: +4dB/30k

-- Input connectors: XLR balanced (A&B)

-- Output sensitivity/impedance: +4dB/150

-- Output connectors: input (ch-A & B): XLR-3-31 (balanced); thru out (ch-A & B): XLR-3-32 (balanced); high pass out (ch-A & B): XLR-3-32 (balanced) (100Hz, 18dB/oct, +4dB)

-- Controls: master level control, cutoff freq. control: 80-100Hz (variable), phase switch: (norm/rev), power switch: on/off

-- Indicators

Power on: green LED, clipping: red LED

-- Power requirement: U/C: AC120V 60Hz

-- Power consumption: 200W