Traynor DynaBass 400H offers the best of all worlds with its combination of tube and solid-state topographies capable of delivering subtle tube warmth, full on tube drive or a pristine clean bass tone on demand.

A separate parallel tube overdrive circuit with an innovative “wet / dry” balance control that allows the perfect blend of overdriven signal to clean bass tone on demand. This allows as much growl or as little “tube warmth” as required to be encorporated into your sound while maintaining a clean central tone to maintain definition and clarity.

The five-band EQ, with a semi-parametric with sweep mid, and a continuously variable Scoop* control offers one of the most versatile tone stacks found on a bass amp. A switchable limiter and a compressor circuit with user definable threshold control have been added to the tube input circuit as well.

*The Scoop function sweeps from a flat frequency response to a mid-frequency dip at 300 Hz. As you increase beyond the halfway point on the control you begin to boost both the top end and bottom end to your tone, in addition to further reducing the midrange level.

The DynaBass 400H Bass head offers a front panel wet / dry control for the effects return, footswitchable tube overdrive, footswitchable effects return and a pre / post selectable XLR balanced Tube DI output. Speakon™ and 1/4-inch extension speaker outputs have been added for quick and easy connection to any bass cabinet.

A front panel tuner / mute switch kills the signal to the amplifier (and DI output) for silent tuning with the front panel mounted 1/4" tuner out jack.
Features

* 400-watts
* Hybrid Tube / Solid-State Preamp Design
* 5-band EQ w/ sweep mid w/ additional Scoop control
* Footswitchable Tube Overdrive w/ Clean Blend
* Active and Passive Instrument Level Inputs w/ Limiter
* XLR Balanced Pre or Post D.I Output
* Integrated Solid Plywood Sleeve w/ additional Single 19-inch Accessory Rack Space

Specifications

Type Bass Head
Power @ min. impedance (Watts) 400
Minimum Impedance (Ohms) 4
Burst Power - 2 cycle 725
Channel 1 - inputs 2x1/4
Channel 1 - controls 5 Band EQ w/ parametric sweepable mid, Tube Gain
Channel 1 - switches Limiter, Compressor, Tube Drive, Tuner Mute
Master Volume Control Yes
Input Sensitivity (mV) 40
Master Outputs Speakon™, 1/4 inch (x2)
Line Out (type / configuration) XLR (Pre/Post Switchable)
Line Out Sensitivity (Vrms) 1.0
Effects Loop / Location Rear
Effects Footswitch / Function Tube Drive / Effects Loop
Effects Return Sensitivity (Vrms) 1.0
LED Indicators Power, Tube Drive, Compressor, Mute, EFX Rtn
Protection Thermal, Short Circuit
Limiter / Switchable Yes / Yes
External speaker output / location 2 x 1/4 inch, 1 x Speakon™
Headphone Jack No
Other Features Amp In (rear)
Parametric Mid
Wet/Dry Blend on EFX Return
Wet/Dry Control on Drive mode
Adjustable Compressor
Tuner mute switch and 1/4" tuner out jack