This head is the complete package. Relatively lightweight, all the functionality you need, great tone, reasonable price, rugged. Four band EQ is centered around tones that typically cause issues for bass, so the adjustments feel intuitive. Native tone is clean and warm, but still punchy. I added a paraEQ to the effects send loop to control gig-specific issues, so that in conjunction with the onboard EQ, all bases are covered.
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Head Details
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GK’s RB Series has been setting the standard for analog bass amplification for over three decades. G.I.V.E. Technology (Gate Induced Valve Effect) is integrated into the design of all RB Series heads allowing them to deliver a warm, punchy tone with a fast transient response that not only sounds better, it feels better. GK’s renowned voicing filters and intuitive four band active EQ make it simple to dial in a great sound.
- Power:
- 700W @ 4 ohms
- Weight:
- 22 lbs
- Size:
- 19 x 8 x 3.5"
- Inputs:
- 1/4" Instrument jack in the front.
- Outputs:
- Two 1/4" speaker jacks and two speakon connectors in the rear.
- EQ / Controls:
- Bass +10dB @ 60Hz
Lo-Mid +6dB/-10dB @ 250Hz
Hi-Mid +6dB/-10dB @ 1kHz
Treble +12/-17dB @ 7kHz
- Price:
- $839
- Features:
- 700 watts (4 ohms) plus 50-watt horn bi-amp system
4-band active EQ
Adjustable contour, presence, and 4-/5-string voicing
Boost (valve effect) - separate tweeter and woofer volume control
Effects loop and tuner output with mute
XLR output with level, ground lift, and pre/post switch
speakON and 1/4" outputs
The unique Horn Bi-Amp system sends the high frequencies to the horn through a separate 50W amplifier. This has many advantages: The horn level is controlled from the front panel. The horn is not overpowered by the larger amp so failures are reduced. When the woofer amp hits the rails (growl) the horn stays clean.
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