Yorkville XS400H BassMaster Bass Amplifiers




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Yorkville XS400H BassMaster Bass Amplifiers
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The XS400H 400 watt bass amplifier is the next leap forward in bass amplifier design from Yorkville Sound. The first major advance was to feature a Sovtek 12AX7A preamp tube at the input stage. Not content to stop there, we added a separate parallel tube overdrive circuit, and an innovative 'wet / dry' balance control that allows the player to set the perfect blend of overdriven signal to clean bass tone. In short you can add as much growl or as little ‘tube warmth’ to your overall bass sound as you need, while maintaining a clean tone underneath it all to maintain definition and clarity. A switchable limiter and a compressor circuit with user definable threshold control have been added to the tube input circuit as well. An improved five-band EQ, with a semi-parametric mid control with a user definable frequency has taken the place of the graphic EQ Yorkville has used on higher power bass amps in the past. A new continuously variable ‘Scoop’ control has been added to the XS400H to replace the 'Contour' switch used on Yorkville bass amps in the past as well. The Scoop function sweeps from a flat frequency response to a mid-frequency dip at 300 Hz. As you increase beyond the 1/2-way 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.

Other professional features added to the XS series bass amplifiers include 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 the addition of an external bass cabinet, like our popular XC210, XC410, and XC115.

A front panel tuner / mute switch has been added to the XS400H bass amplifier. This mute silences the signal to the amplifier (and DI output) for silent tuning with the front panel mounted 1/4" tuner out jack.

Features Tube powered input and overdrive (12AX7A preamp tube) Footswitchable Tube Overdrive and Effects Loop Innovative Wet/Dry blend on Tube Overdrive Wet/Dry blend on the effects loop return Five band EQ featuring a semi-parametric sweepable mid Unique "Variable Contour" scoop function Pre/Post EQ selectable XLR balanced Tube DI output Speakon™ and 1/4" extension cabinet outputs Front panel mute switch for silent tuning with 1/4" tuner out jack Switchable Limiter at the output stage



Specifications Power @ min. impedance (Watts) 400 Minimum Impedance (Ohms) 4 Burst Power - 2 cycle 725 Watts Frequency Response (Hz +/-3dB) 20hz - 20khz Hum and Noise (dB) -90dB Unweighted / -94db A weighted Input Channels 1 Channel 1 - inputs 2x 1/4 inch, 0dB / -6dB 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) Pre/Post EQ - XLR, Bal TRS Line Out Sensitivity (Vrms) 1 Effects Loop / Location Rear Effects Footswitch / Function Tube Drive / Effects Loop Effects Return Sensitivity (Vrms) 1 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 Dimensions (DWH, inches) 15.5 x 19 x 3.5 Dimensions (DWH, cm) 39.5 x 48.2 x 8.9 Weight (lbs / kg) 29.5 / 13.4

BassMaster Bass Amps Series Overview

It all started with bass amplifiers. The first product Yorkville ever designed and built was an extremely reliable and affordable bass amp. For over thirty-five years, musicians have chosen Yorkville bass amplifiers for their great sound and durability. Working directly with players for over four decades, Yorkville engineers have learned about building rock solid bass amplification. Conceived by players, designed and built by Yorkville, we have had an incredibly successful run with The BassMaster Series.

In the past, BassMaster was known for their excellent sound, quality and value... Rugged and Reliable rock solid bottom end. From the most compact XM50C 50-watt combo to the rack-mountable XS800H 800 watt head, today’s BassMaster amplifiers reflect the latest in modern technology along with the highest quality and a legendary ‘retro’ look to suit players of all styles and abilities.

Now the BassMaster series has undergone a radical redesign. New cabinet designs, including a switch to birch plywood, a radical new finish, and re-engineered electronics mean we can offer new features and new models.

Years of experience have taught us that using MDF (medium density fiberboard) or particleboard for bass cabinets isn't conducive to a long rattle-free life or great bass tone, therefore all Yorkville bass cabinets are made with a reinforced solid plywood cabinet construction. A full metal grille protects the high quality custom designed speaker components used in all Yorkville Bass cabinets. Built for years of rugged use and unmatched dependability, we are so sure of our design and manufacturing prowess and our careful attention to detail that we cover all Yorkville extension speakers with a two year unlimited warranty.

BassMaster Bass Amps Series Characteristics Simple Flexibility & Dependable Quality Effective simplicity was the goal we set for our new line of amps. Active filtering circuits allow versatile tonal shaping with fewer knobs and switches. You can always get the sound you want quickly and easily from a Yorkville bass guitar amplifier. Inside the chassis we use high-grade glass epoxy circuit boards, low noise metal film resistors, phone jacks with gold plated contacts. Outside you will find heavy gauge metal speaker grilles with a retro-fashioned texture look, 3/4” plywood construction and a new harder painted finish.Select models are available in an ultra tough black carpet covering similar to that used on select élite P.A. cabinets.

Add rigorous factory testing and our unbeatable 2-year (Even if you break it) Unlimited Transferable Warranty* and you can be sure you have what you need to reliably sound your best for years to come.



We provide great low prices for professional audio video and lighting for churches and stage From bose speakers to Yamaha digital mixers


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