Mad Professor Deep Blue Delay Effect Pedal
The delay isspecially designed to work well with distorted tone, as this is the mostcritical application, where delays often fail. You can use the pedal before orafter distortion. As such, it will work exceptionally well on clean soundswhere requirements are less stringent, especially in terms of echo bandwidthand repeat formation. Its tone has been carefully tuned with a lot of attentionto the first critical reflection and how it repeats decay.
Deep BlueDelay is kept small (Width x Length x Height: 69mm x 111mm x 50mm includingjacks and knobs) containing just the basic delay features; Delay Time, DelayLevel and Repeat controls. It was designed to work as an ambiance delay; likethat of a vintage tape echo and the repeat, the formation was specificallydesigned to allow easy setting and less critical setting of delay time. Withdelay times higher than 120ms, the delay time is sometimes set on the beat oron a multiple of the beat. Deep blue handles this by not giving full rangerepeats, but a tuned response that doesn’t need to be on the beat to soundgood.
Key Features
- Deep BlueDelay is a natural sounding digital/analog delay, with the analog direct signalpath. The Deep Blue Delay has about the same bandwidth as the classic tape echounits, and it can be used in front of an amplifier or in amplifier effectsloops.
- There are nonoise reduction circuits, which keeps decay of echo as natural as possible.
- The directsignal path is short and made with analog amplifiers with no filtering.
- There shouldbe no distortion or tone coloration as long as input level is in the rangebelow maximum allowed.
- The echosignal has a tuned filtering to allow extreme settings without interference.
TechnicalSpecifications
CONTROLS
LEVEL: Setsthe level of delayed signal mixed with straight guitar tone, fully CCW there isonly straight (un-effected) guitar signal heard and fully CW gives the loudestdelay.
DELAY:Controls the delay time from 25ms (fully CCW) to 450ms (fully CW).
REPEAT:Controls the repeats of the delay signal, fully CCW gives one repeat and atfully CW you get infinite feedback.
ELECTRICAL SPECIFICATIONS
Currentconsumption: 32mA at 9VDC
Voltagerange: 8V to 15V (below 7.5V delay signal will be muted)
Inputimpedance: IZ 180K ohms
Output drivecapability: 10K ohms
Maximuminput voltage: 2V peak 650 mV rms
Signal tonoise ratio: 80 dB
Delay timeapproximately 25 ms to 450 ms
Powerrequirement supplied via 2.1 mm DC socket
Input andoutput connections via 1/4” phone jack
Completebypass and input of circuit grounded when in bypass
POWER REQUIREMENTS
6F22 9Vbattery or DC eliminator 2.1 mm plug center negative and positive sleeve.
