Atma-SphereUV-1 (UltraViolet) Tube PreampAtma-Sphere UV-1 (UltraViolet) Tube Preamp AMAZING TUBE PRE-AMP!COME VISIT OUR WORLD CLASS SHOWROOM IN SCOTTSDALE ARIZONA -ASK ABOUT HOW YOU CAN FLY AND STAY FOR FREE TO COME AND VISIT OUR BEAUTIFUL STORE IN SCOTTSDALE, ARIZONA - TO AUDITION GEAR. WE HAVE OVER ...1900.00

Atma-Sphere UV-1 (UltraViolet) Tube Preamp AMAZING TUBE PRE-AMP!

Listing ID: lis7eeg6 Classified 
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Atma-Sphere
Time Left: 17 Days

Ending:

Asking Price: $1,900.00

New Retail Price: $1,900.00

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Condition
NEW
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Ships fromScottsdale, AZ, 85258
Ships toUnited States
Package dimensionsunspecified
Shipping carrierunspecified
Shipping costFree
Original accessoriesBox, Manual
Agon-miniAverage Research Pricing

COME VISIT OUR WORLD CLASS SHOWROOM IN SCOTTSDALE ARIZONA -
ASK ABOUT HOW YOU CAN FLY AND STAY FOR FREE TO COME AND VISIT OUR BEAUTIFUL STORE IN SCOTTSDALE, ARIZONA - TO AUDITION GEAR. WE HAVE OVER 25 LIVE SYSTEMS FOR YOUR AUDITION.    
   
CAN'T COME OUT TO VISIT? WE MAKE IT EASY, ASK ABOUT OUR IN HOME AUDITION PROGRAM. 

6 MONTHS SAME AS CASH FINANCING AVAILABLE !

1-2-3 YEARS SAME AS CASH FINANCING AVAILABLE! - 0% FINANCING RATE - NO FINANCE CHARGES.


PRICE PROTECTION GUARANTEE

Our 90 Day Price Protection Guarantee assures our clients of our continued commitment to full satisfaction and delight. Should you find any Hi Fi product we offer from an Authorized Dealer in the USA for a lower price than the price you paid to us, we will gladly refund to you the difference plus 10% of that difference.

Open 7 days, 10am to 8pm Ocean West

USA Tube Audio - Since 1976 
Please call 1-800-676-1085 Sales Ext 2 - USA + Canada 
1-323-657-5993 International 
52-55-8525-6102 Mexico 
www.usatubeaudio.com


With the Stepup transformers it works with low output moving coil cartridges and will retail for $2800.00. Without the SUTs, it works with high output cartridges and is $2400.00. Finally, it is available as a line stage for $1900.00.


The UV-1 (UltraViolet) preamplifier is based on a circuit that we have used for many years, but not marketed before. About 40 years ago, Ralph Karsten began developing his own circuit for use for friends on a budget but with high end audio aspirations. Over a period of decades, the circuit has seen a lot of refinement. It is a simple circuit (and obviously a complete departure from our other products), based on a very capable and refined 6SN7-based line section with a simple phono section based on 12AT7s. We have seen this preamp best preamps costing up to five times more; when we say 'refined', we mean it! 

We never really considered marketing the preamp as it is so different from the rest of our product line. But friends and associates convinced us that we had something special, especially for its price so here it is. 

The preamp is available in three forms: a basic line stage, a full function preamp with high output MM capability, or with the addition of of a set of Jensen stepup transformers works with any low output moving coil cartridge as well.

  • Simple zero feedback line section

  • Cardas RCA connectors used thoughout

  • standard dual output connections, optionally reconfigurable

  • Shunt-style balance control

  • heavy-duty seamless aluminum chassis

  • Precision components used throughout

  • Low-noise "star" grounding topology

  • Three-year general coverage warranty with one year warranty on tubes

Line stage frequency response

2 Hz-200 KHz, +0 dB, -2dB 

Line stage gain

15 dB 

Line stage input impedance

100 Kohm Ω single-ended 

Line stage output

12V; 17VRMS at clipping 

Output impedance

400 Ohms from 2Hz to 100KHz 

Phono stage input impedance

47 K Ω, 

Phono stage input overload

500 mV 

Phono stage gain

70 dB (Low Output Moving Coil version) 

Phono bandwidth

5 Hz-90 KHz within ½ dB

RIAA accuracy

Within .1 dB

RIAA Phono sensitivity

( for 0.5 V @ 1 KHz ) 0.15 mV 

Tube complement

2 x 12AT7 phono 
2 x 6SN7GT line section 

Dimensions

15 3/8" wide x 7.5" deep x 5." high 

Weight

7 lbs. 

Warranty

Three years, transferable 
One year for tubes

The Part-Time Audiophile, Josh Emmons, Axpona 2015

Enjoy The Music

Review by Ron Nagle, February 2015  


6 MONTHS SAME AS CASH FINANCING AVAILABLE !

1-2-3 YEARS SAME AS CASH FINANCING AVAILABLE! - 0% FINANCING RATE - NO FINANCE CHARGES.


PRICE PROTECTION GUARANTEE

Our 90 Day Price Protection Guarantee assures our clients of our continued commitment to full satisfaction and delight. Should you find any Hi Fi product we offer from an Authorized Dealer in the USA for a lower price than the price you paid to us, we will gladly refund to you the difference plus 10% of that difference.

Open 7 days, 10am to 8pm Ocean West

USA Tube Audio - Since 1976 
Please call 1-800-676-1085 Sales Ext 2 - USA + Canada 
1-323-657-5993 International 
52-55-8525-6102 Mexico 
www.usatubeaudio.com

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ch1 
USA TUBE AUDIO  Verified Dealer

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Member since September 2006