EQ / Preamp (Bass amp-in-a-box preamp (GK 800RB + biamp/crossover)) · $269
The Master Effects Super Eight Hundred Plus is an analog bass amp-in-a-box preamp (GK 800RB + biamp/crossover) pedal based on the Gallien-Krueger 800RB preamp, with 4-band active EQ (Bass/Lo Mid/Hi Mid/Treble), Vol (gain), Master, Boost; biamp crossover + independent hi/lo volumes controls, made in Canada. From $269.
| Category | EQ / Preamp (Bass amp-in-a-box preamp (GK 800RB + biamp/crossover)) |
| Circuit / based on | Gallien-Krueger 800RB preamp |
| Signal | Analog |
| Controls | 4-band active EQ (Bass/Lo Mid/Hi Mid/Treble), Vol (gain), Master, Boost; biamp crossover + independent hi/lo volumes |
| Switches | Lo Cut, Mid Contour, Hi Boost, biamp switch, 10dB pad |
| Footswitches | 1 |
| Bypass | true bypass |
| True bypass | Yes |
| Power | 9V DC (internal +/-15V) |
| Country of manufacture | Canada |