Sinusoid

The Sinusoid by Gurus is a tube-driven pedal designed to replicate the vintage effects found in early 60s American amps. It features two independent effects that can be recalled individually or combined using footswitches. The specific features and technical specifications are as follows:

Reverb:
- Real tube-driven analog reverb circuit equipped with an ACCUTRONICS™ double springs tank
- Fine-tuning of frequencies to achieve the feeling of vintage 60s spring reverb tanks

Vibro (Vibrato):
- Real tube-driven optical tremolo circuit using a sinusoidal wave coupled with proprietary Gurus technology using LDR (Light Dependent Resistor) to match the character of vintage vibrato channels

Other Features:
- Remote outs for connections with analog switchers to operate the pedal outside of the pedalboard without causing mechanical noises
- Remote switcher must have clean contacts without common ground wiring

Power Requirements:
- Powering Sinusoid: Drains around 230mA on 9VDC and 300mA on 12VDC, with an internal power output section (1.2W amp) that drives the reverb tank, potentially requiring up to 400mA on 12VDC
- Standard negative tip power supply with sufficient current for optimum performance is recommended

Controls:
1. Volume: Input level
2. Reverb: Effect level
3. Magic eye display showing the input level
4. Intensity: Vibrato level
5. Speed: Speed of vibrato
6. Magic eye display showing the impulsive vibrato speed
7. On/Off reverb
8. On/Off vibrato
9. Remote switching out
10. Tube 12AU7/ECC82 estimated replacement time is 3000 hours
11. Power in 9 to 12VDC negative tip, 400mA required
12. Signal input
13. Signal output

Technical Details:
- Power: 9VDC (Negative Tip), 12VDC (Negative Tip)
- Max Consumption: 410mA
- Signal to Noise: 110dB typical
- Frequency Response: 20Hz to 20,000Hz
- Input Impedance: Less than 1M Ohm
- Output Impedance: Less than 100K Ohm
- Max Input Level: 1.5Vpp
- Bypass Switching
- Reverb Tank Amplifier: SS 1.2W RMS
- Reverb FX Mix: Max. 50% (parallel connection)
- Vibrato Circuit: Full Sino Opto-Resistor equipped
- Vibrato Intensity: 0 to -10dB
- Vibrato Speed: 116 to 384bpm
- Tube Type: 12AU7 (Shuguang)
- Remote switching: ON-ON Mom. Clean contact switch 1/4” TRS jack
- Dimensions: 220x130x50mm (8x5x2 inches)
- Weight: 0.600kg (1.32 lbs)
- Main Power: DC plug 5.5 x 2.1mm
- Input: Guitar input 1/4” jack
- Output: To amp in 1/4” jack

The Sinusoid offers a full frequency response of 20Hz to 20,000Hz, making it suitable for all applications and any instrument. It is designed to provide the sound and feeling of vintage amps from the 60s.