VK-P10SE 
Phono Stage
VK-P10SE
 
SERIOUS ENHANCEMENTS RESULT IN SERIOUS SOUND

A Special Edition version of BAT’s renowned VK-P10 phonostage, the VK-P10SE incorporates numerous engineering improvements to offer greater information retrieval and supreme musical presentation. The first gain stage is completely revised to provide a substantially lower noise floor. In addition, the reconfigured output stage incorporates four high-gain 6C45 tubes. They provide high-current and low-output impedance, establishing a superb level of drive and transparency. These enhancements result in a phonostage with improved silence in the quietest musical passages, unfettered dynamic ease, and grand sense of scale. Fully balanced, the VK-P10SE achieves the best-possible performance when the phono cartridge is used in a matching balanced configuration.

Balanced Audio Technology is pleased to offer the VK-P10SE as a Special Edition version of our renowned VK-P10 phono stage.  The VK-P10SE incorporates numerous engineering improvements that take the performance of the already stellar VK-P10 to a truly superlative level.  The first gain stage has been completely revised to provide a substantially lower noise floor.  The output stage has been changed to incorporate a quartet of the robust high-gain 6C45 tubes.  The 6C45's provide high current and low output impedance to establish a superb level of drive and transparency.  These changes result in a phono stage with improved silence in the quietest passages of music, combined with an unfettered dynamic ease and sense of scale.

Balanced Architecture

The VK-P10SE is a fully balanced design from input to output.  For the best possible performance, the phono cartridge should be used in a matching balanced configuration - and many turntables and tone-arms allow for such a termination.  In some cases, even if only RCA connectors are present on the arm, the cartridge can still be used in a balanced configuration by using a specially designed cable.  Balanced Audio Technology can provide the instructions to your cable manufacturer for building this higher-performing balanced cable.

Ten tube, zero-feedback design

The VK-P10SE features an all-tube zero-feedback design that combines the benefits of balanced operation with complementary vacuum-tube current sources.  Dual-mono construction and enormous energy reserves are matched by extensive flexibility in cartridge loading.  The first gain stage achieves a very low noise floor by using premium Vishay Bulk FoilTM resistors that replace metal film resistors in critical circuit areas.  The output stage employs four powerful high-current 6C45 vacuum tubes for improved gain and better drive capability.  An upgraded power supply and dual SIX-PAKs of paper-in-oil output capacitors contribute more responsive, visceral bass.  The result is a phono stage with greatly extended dynamic range, along with enhanced ability to resolve harmonic and reverberant detail in the quietest passages.

Flying RIAA network

The VK-P10SE employs a differential RIAA network.  Among the benefits of this novel configuration are ease of adjustment and improved common mode noise rejection.  This circuit is also completely passive and has fewer components than a more traditional implementation.  The ease of factory adjustment translates into improved matching of the RIAA curve to specification – with an RIAA error typically not exceeding 0.1dB!  With the BAT Flying RIAA network, you can be assured that all of your records sound the way that the recording engineer intended.

Vacuum tube current sources

Vacuum tube current sources further improve the linearity of any gain stage to yield a more open and textured sound than a simple resistor-based solution. In the VK-P10SE design, dual 6SN7 vacuum tubes act as current sources for the second gain stage of this fully balanced all-tube design.  These vacuum tube current sources complement the inherent strength of vinyl playback as the finest texture and harmonic structure of musical instruments are portrayed with greater delicacy.

Selectable step-up transformers

The VK-P10SE features second generation step-up transformers that provide as much as a 20db improvement in signal to noise ratio in comparison to direct mode operation.  This allows the customer to use even the lowest output moving-coil cartridges successfully.  With up to 80dB of gain available – there is no signal too small! 

Summary

Why did we build a special edition of our already highly regarded VK-P10 phono-stage?  In the end, the goal was to create a phono stage that offered even greater ability to retrieve the finest musical detail from your record collection.  The engineering execution simply conveys the manner in which we accomplished this goal.  Here, we are pleased to report that our customers have the same over-the-top reaction to the VK-P10SE that has greeted all of Balanced Audio Technology’s Special Edition efforts.  We hope that you can audition the VK-P10SE in your own system to understand why it is indeed something special.

Of course, all VK-P10SE phono stages can be further upgraded to VK-P10SE/SUPER-PAK status, maintaining the commitment to a rational upgrade path that has earned BAT unmatched customer loyalty.

UPGRADED POWER SUPPLY, EXTENSIVE FLEXIBILITY, DUAL SIX-PAKs

The VK-P10SE boasts an all-tube zero-feedback design that combines the benefits of balanced operation with complementary vacuum-tube current sources. Dual-mono construction and enormous energy reserves are matched by extensive flexibility in cartridge loading. The first gain stage achieves a very low noise floor via premium Vishay Bulk FoilTM resistors that replace metal film resistors in critical areas. An upgraded power supply and dual SIX-PAKs of paper-in-oil output capacitors contribute more responsive, visceral bass. Vacuum-tube current sources further improve the linearity and yield a more open, textured sound. Here, dual 6SN7 vacuum tubes act as current sources for the second gain stage. 

FLYING RIAA NETWORK MEANS YOU HEAR LPs AS THE RECORDING ENGINEER INTENDED

The VK-P10SE employs a differential RIAA network, permitting ease of adjustment and improved common mode noise rejection. Completely passive, this circuit has fewer components than a more traditional implementation. Such benefits translate into improved matching of the RIAA curve to specification. With the Flying RIAA network, you can be assured that all of your records sound the way that the recording engineer intended. And the VK-P10SE’s second-generation step-up transformers provide as much as a 20db improvement in signal-to-noise ratio in comparison to direct mode operation. With up to 80dB of gain available, there is no signal too small. Analog bliss awaits.

VK-P10SE
Phono Stage
Inputs: 1x RCA + 1x XLR Weight: 40 lb. (19kg)
Outputs: 1x XLR    
Gain at 1kHz:   Signal to noise ratio:  
Direct - Low 45dB Direct - low 73dB
Direct - High 60dB Direct - high 76dB
Step-up low 65dB Step-up low 86dB
Step-up high 80dB Step-up high 93dB
       
Cartridge loading:   Absolute Polarity: Switchable
Resistance(ohms) Selectable from 100 to 47k Tube Compliment: 4x 6922
4x 6C45
2x 6SN7
Capacitance (pf) Selectable from 0 to 1000 Power supply energy storage: 200 joules
       
Power consumption: 150 VA Dimensions: 19"x5.75"x15.5"
(48 cm x 15 cm x 40 cm)

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