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Mad Professor Deep Blue Delay 延时 单块效果器

品牌代表作之一,Deep Blue延迟是一种自然听起来的数字/模拟延迟,具有模拟直接信号路径。深蓝色延迟的使用范围与传统的磁带回声单元差不多,可以用于前级或效果环路中。

  • 型号: Deep Blue
  • 价格: 1450
  • 产地:

品牌代表作之一,Deep Blue延迟是一种自然听起来的数字/模拟延迟,具有模拟直接信号路径。深蓝色延迟的使用范围与传统的磁带回声单元差不多,可以用于前级或效果环路中。


Deep Blue 没有降噪电路,使回声衰减尽可能自然。


直接信号通路很短,由模拟放大器构成,无需滤波。


只要输入电平在允许的最大值以下,就不应出现失真或音色着色。


回波信号有一个调谐滤波,允许极端设置而不受干扰。


延迟是专门设计的,可以很好地处理失真的音色,因为这是最关键的。可以在失真前后使用踏板。因此,在要求不那么严格的地方,特别是在回波带宽和重复频率方面,它将特别适用于干净的声音。它的音色经过精心调整,对第一次临界反射以及它如何重复衰变进行了大量的研究。


Deep Blue延迟的体积很小(宽x长x高:69mm x 111mm x 50mm,包括插孔和旋钮),仅包含基本延迟特性;延迟时间、延迟深度和重复量控制。它被设计成一个环境延迟,就像复古磁带回声。在延迟时间大于120ms的情况下,延迟时间有时设置在拍上或拍的倍数上。Deep Blue处理这一点,不给予全范围的重复,让延迟音符更加真实自然。


为什么是数字?对于解决方案来说,模拟不是更好吗?


其实,在许多方面,延迟介质不那么重要,它可以是油桶、磁带、金属线、模拟BBD或数字,但最终声音总是由延迟介质和使其工作所需的外围电路的限制来设置的。我们选择了数字结构,使其紧凑、稳定、具有合理的延迟时间,而电路的局限性将不那么关键。作为结果,你可以设置所需的带宽和失真水平的外围电路,而不必考虑延迟介质的确切限制。


类似的模拟电路的制造成本会非常高。为了达到同样的性能,它需要三到四个最好的BBD芯片,现在只能作为老式零件提供,踏板的尺寸必须是当前尺寸的三倍左右。


电流: 32mA / 9VDC

电压: 8V - 15V (低于 7.5V 延时将关闭)   

延时范围: 25 ms to 450 ms


原文介绍:

Deep Blue Delay is a natural sounding digital/analog delay, with the analog direct signal path. The Deep Blue Delay has about the same bandwidth as the classic tape echo units, and it can be used in front of an amplifier or in amplifier effects loops.

There are no noise reduction circuits, which keeps decay of echo as natural as possible.

The direct signal path is short and made with analog amplifiers with no filtering.

There should be no distortion or tone coloration as long as input level is in the range below maximum allowed.

The echo signal has a tuned filtering to allow extreme settings without interference.

The delay is specially designed to work well with distorted tone, as this is the most critical application, where delays often fail. You can use the pedal before or after distortion. As such, it will work exceptionally well on clean sounds where requirements are less stringent, especially in terms of echo bandwidth and repeat formation. Its tone has been carefully tuned with a lot of attention to the first critical reflection and how it repeats decay.


Deep Blue Delay is kept small (Width x Length x Height: 69mm x 111mm x 50mm including jacks and knobs) containing just the basic delay features; Delay Time, Delay Level and Repeat controls. It was designed to work as an ambiance delay; like that of a vintage tape echo and the repeat, the formation was specifically designed to allow easy setting and less critical setting of delay time. With delay times higher than 120ms, the delay time is sometimes set on the beat or on a multiple of the beat. Deep blue handles this by not giving full range repeats, but a tuned response that doesn't need to be on the beat to sound good.


Why digital? Isn’t Analog better for a solid-state solution?


Well, in many ways, the delay medium is less critical and it could be an oil-drum, tape, metal-thread, analog BBD or digital, but the final sound is always set by the limitations of the delay medium and the peripheral circuitry needed to make either work. We chose Digital construction to make it compact, stable, with reasonable delay time and virtually service free, where the limitations of the circuit would be less critical. As an outcome, you can set the peripheral circuitry with desired bandwidth and distortion levels with less consideration on the exact limits of the delay medium, while of course always pushing the limits, as with anything musical.


A similar circuit in analog form would be excessively more expensive to make. For the same performance, it would require three to four of the best BBD chips now only available as vintage parts and the size of the pedal would have to be about three times the current size.


Current consumption: 32mA at 9VDC Voltage range: 8V to 15V (below 7.5V delay signal will be muted) Input impedance: IZ 180K ohms Output drive capability: 10K ohms Maximum input voltage: 2V peak 650 mV rms Signal to noise ratio: 80 dB Delay time approximately 25 ms to 450 ms Power requirement supplied via 2.1 mm DC socket Input and output connections via 1/4” phone jack Complete bypass and input of circuit grounded when in bypass