Surreal Audio Echo Sphere Analog BBD Delay Pedal

The ECHO SPHERE is an analog delay with modern controls. It features 4 of the legendary MN3005 bucket-brigade devices and a powerful modulation matrix to utilize all the magic inside them. The digital brain inside the ECHO SPHERE allows any configuration to be saved as a preset and recalled at any time.

The ECHO SPHERE has a fully analog signal path. No analog-to-digital conversion. No 1’s and 0’s. Just pure analog magic with all the quirks and non-linearity that make analog effects special. However, the ECHO SPHERE is smart. It remembers every knob position to be recalled at any time from memory. This is because every parameter is adjusted by various control voltages generated by an internal processor. Inside the ECHO SPHERE there are separate Voltage Controlled Amplifiers (VCAs) controlling the input, repeats, wet and dry signal levels. There are also Voltage Controlled Filters (VCFs) consisting of a 2-pole highpass filter and two 4-pole lowpass filters that function as both tone control and anti-aliasing filters required for use with the bucket-brigade devices. This allows for an advanced modulation matrix that can not only modulate time but any other parameter as well.