经典延时BOSS效果器DD2 DD3介绍

经典延时BOSS效果器DD2 DD3介绍 80年代的很多重金属吉他大师都喜爱他们的ROLAND机架延时效 果器SDE3000，更有很多的乐手使用BOSS单块数字延时效果器， 其中DD2 DD3都是经典中的经典。1983年DD2上市到1986年 DD3上市以来，包括老joe在内的很多大师都依然在用DD2和 DD3，足见其质量和音色的经久不衰。下面照片是我的收藏品。 英文资料 来自Boss地带网站 DD-2 Digital Delay Text from BossUS.com, Boss Classics: The DD-2 gave guitarists and other musicians pristine-sounding digital delay in a simple stompbox for the first time ever. This popular pedal had controls for delay time, effect level and mode, making it easy to add everything from a short slapback to longer, tempo-based delays. Boss Pocket Dictionary vol.3 (1986): The world's first compact digital delay, the DD-2 employs the same 12-bit system found in more sophisticated, rack-mountable digital delays. The DD-2 digital delay also features a wide, variable delay time range from 12.5msec all the way up to 800msec wider than that of any analog delay on the market today-plus an excellent frequency response that is flat over the entire 40Hz to 7kHz range. A unique hold function and two stereo outputs are also included, adding up to an effect pedal that musicians everywhere have been waiting for. The DD-2 - creating new dimensions in sound reproduction Using the DD-2 , Due to the wide 12.5msec to 800msec variable delay time range and the +1, -3dB frequency response over the entire 40Hz to 7kHz range, the DD-2 can produce a crystal clear delay sound, making it ideal not only for live performances but also for studio recording sessions. , The desired hold effects can be produced within a range of 200msec to 800msec. By using the unlatch function, the hold effect will continue for as long as the pedal is pressed. For example, by setting the delay time at the tempo of the song to be played, you can take advantage of the DD-2 's effects while you are pausing, letting you develop your own unique ways of effectively using the DD-2 during ensemble performances. , The DD-2's 3-stage (S/M/L) Delay Mode selector and find-adjustment Delay Time control work together to let you perform extremely precise adjustment of the delay time. , Unlike analog delay units, the DD-2 can cleanly create such delay effects as repeat-echo and doubler effects. , Two stereo outputs let you produce richer-sounding effects. , Tape echo-like delay setting. (Fig. 1: E.Level 2, F.Back 2, D.Time 5, Mode L) , Conventional short-delay setting. (Fig. 2: E.Level 2, F.Back 0, D.Time 5, Mode S) Specifications , Controls: E.Level, F.Back, D.Time, 4-way Mode switch , Connectors: Input, Output, Direct Out, AC Adaptor , Current Draw: 55 mA (DC 9V, D.Time control at center) , Weight: 450 g (0.99 lb.) , A/D Conversion: 12-bit logarithmic compression , D/A Conversion: 12-bit logarithmic compression , Input Impedance: 1Mohm (FET Input) , Residual Noise Level: -95dBm (IHF-A) , Recommended Load Impedance: 10kOhm or greater , Delay Time: 12.5 to 800ms , Recommended AC Adaptor: PSA Series Labels , Green - Made In Japan , Blue - Made In Japan The DD-2 was sold from December 1983 to August 1986. DD-3 Digital Delay The early DD-3 is the same pedal as the DD-2. Because of the price drop on DRAM in 1986 it was possible to produce the pedal much cheaper. Dropping the price didn't look so good so it was decided to re-release the DD-2 under the name DD-3 instead. The front of the pedal got a face lift with the re-release. Version differences , There are two main versions of the DD-3 that look almost identical. The DD-3 was redisigned with a new DSP chip around 1990. The new version is called the DD-3A. The DC socket was at the same time replaced with PCB mounted small type and this can be used to the identify which version of the DD-3 you have. The design change happened before production was moved from Japan to Taiwan so if your DD-3 is made in Taiwan it is most definitely a DD-3A. The latest version of the DD-3 is using surface mounted components and the PCB layout is completly redesigned from the DD-3A. The internal design is however very similar. Boss Guitar Effects Guide Book vol.9 (1993): This compact pedal provides a digital delay effect with outstanding quality equivalent to that of a dedicated rack mount delay unit. In addition to three delay time modes, a Delay Time control is furnished, giving you speedy, precise adjustment of delay time continuously within a range of 12.5ms to 800ms. The hold function repeats the delay indefinitely. Using the DD-3 , To produce a twin guitar sound: Set the mode knob to 200ms. Turn the F.BACK control to MIN to get a single delay. (Fig 1: E.Level 10, F.Back 0, D.Time 5, Mode M 200ms) , For a reverb-type effect: Great for starting a song with a hard rock guitar riff. Delay time ranges from 50 to 200ms. (Fig 2: E.Level 5, F.Back 7, D.Time 5, Mode M 200ms) , For a sitar-like effect: Turn the F.BACK control to MAX, then connect a cord to the direct out and leave the other out disconnected. (Fig 3: E.Level 5, F.Back 10, D.Time 5, Mode S 50ms) Specifications , Controls: E.Level, F.Back, D.Time, 4-way Mode switch , Connectors: Input, Output, Direct Out, AC Adaptor , Current Draw: 55 mA (DC 9V, D.Time control at center) , Weight: 450 g (0.99 lb.) , A/D Conversion: 12-bit logarithmic compression , D/A Conversion: 12-bit logarithmic compression , Input Impedance: 1Mohm (FET Input) , Residual Noise Level: -95dBm (IHF-A) , Recommended Load Impedance: 10kOhm or greater , Delay Time: 12.5 to 800ms , Recommended AC Adaptor: PSA Series Labels , Blue - Made In Japan , Blue - Made In Taiwan , Pink - Made In Taiwan , Dark Gray - Made In Taiwan The DD-3 was sold from August 1986 to present. 附件 DD系列 001.jpg (373.02 KB) 2008-6-11 12:04 DD系列 006.jpg (401.36 KB) 2008-6-11 12:04 DD系列 007.jpg (396.37 KB) 2008-6-11 12:04 DD系列 002.jpg (383.94 KB) 2008-6-11 12:04 DD系列 003.jpg (397.22 KB) 2008-6-11 12:04