HiFi Stereo Tube Preamplifier Class A Single-ended XLR Balanced Audio Preamp

Description

Add to Favorites Seller
Join newsletter
Payment
Shipping
Return Policy
About Us
Contact Us
View All Categories
Nobsound®——Dou​k Audio
Germany Warehouse
USA Warehouse
UK Warehouse
HiFi Art-Elfidelity
Hi-Fi Tube Amplifier
Famous Brand Amplifier
Integrated Amplifier
Digital Amplifier
Phono Pre-Amplifier
Pre-Amplifier
Headphone Amplifier
DAC / Audio Decoder
Guitar Effects
Digital Interface / Sound Card
Bluetooth Audio Devices
AV Tube Integrated Amplifier
Record Players/Home Turntables
Hi-Fi Speakers
Aluminum Chassis/DIY Enclosure
Tubes
Hi-Fi Cable
Audio Signal Switcher
PSU / Power Supply
Speaker Protection
Audio Accessories
Amplifier Transformer
Other
Home
Feedback
Save Seller
New Listed
Ending Soon
Auction
Buy It Now
On Sale
Store Category
Nobsound®——Douk Audio
Germany Warehouse
Audio HiFi & DIY
USA Warehouse
UK Warehouse
Phono Pre-Amplifier
Digital Amplifier
HiFi Art-Elfidelity
PC filtering part
Sound card/DAC
Hi-Fi Tube Amplifier
EL34 Tube Amplifier
300B Tube Amplifier
KT88/KT66 Tube Amplifier
6P3P/6P1 Tube Amplifier
Other Tube Amplifier
Tube Amplifier DIY Kit
Diy kit
Completed in case
Tube Pre-Amplifier
Tube Headphone Amplifier
Famous Brand Amplifier
Raphaelite
Raphaelite transformer
xDuoo
APPJ
ZHILAI
Line5
Integrated Amplifier
Diy kit
Assembled board
Completed in case
Digital Amplifier
Phono Pre-Amplifier
Pre-Amplifier
Diy Kit
Assembled board
completed in case
Headphone Amplifier
Diy kit
Assembled board
Completed in case
DAC / Audio Decoder
Diy kit
Assembled board
completed in case
XMOS DAC
Guitar Effects
Digital Interface / Sound Card
Bluetooth Audio Devices
AV Tube Integrated Amplifier
Record Players/Home Turntables
Hi-Fi Speakers
Speaker Frequency Divider
Speaker Unit
Finished Speaker
HiVi Speakers
Aluminum Chassis/DIY Enclosure
Small-sized
Medium-sized
Large-sized
Personalized Chassis
Tubes
Shuguang tubes
PSVANE tubes
Electro-Harmo​nix
Tung-Sol
Hi-Fi Cable
3.5 Line Out Cable
Conversion Cable
Headphones Upgrade Cable
Power Cable
RCA Audio Cable
XLR Audio Cable
USB Cable
Coaxial Cable
Dock Cable
Optical Fiber Cable
Other
Audio Signal Switcher
PSU / Power Supply
Diy kit
assmbled board
Speaker Protection
Diy kit
assembled board
Audio Accessories
Amplifier Transformer
R-type Transformer
Toroidal transformer
O-type Transformer
Other Transformer
Other
Join Our Newsletter
Receive our email newsletters about new items and special promotions!
Sign Up Now !
HiFi Stereo Tube Preamplifier Class A Single-ended XLR Balanced Audio Preamp
Item description
Shipping from USA, 1-6 Working days to most US regions.
Inspired by classic circuit and make some improvements, and developed this stereo balanced XLR/single-ended RCA PA-03MKII tube preamp. Adding it between sound source and amplifier, can greatly improve the sound quality, much better than directly connecting DAC or CD player to the power amplifier.
Features
With 3 groups of stereo RCA and 1 group of XLR input, 2 groups of stereo RCA and 1 group of XLR output, can compatible with most analog audio device, and support connecting 4 groups of audio source at the same time and switched via selection knob.
Adopting 4PCS vacuum tubes, the sound is soft and noise-resistant, warm and natural, the high-frequency is extended and the medium / low-frequency is mellow, the listening feeling is very quiet, suitable for long-time listening.
A spacer is added between the circuit board and the transformer to prevent interference. The specially designed relay input selection circuit to avoid other groups of sound crosstalk to the current channel.
Output delay design prevents DC output shock to damage amplifier or speakers. Adopting two groups of high voltage use op amp servo + FET regulator, low temperature wave, high speed, much quieter background, better sound reproduction.
With treble and bass control, more delicate sound can be enjoyed. And a switch is designed to turn on/off the tone control, more convenient to enjoy original sound, with much fun and higher playability.
Unique design with attractive appearance, and high-end materials are used such as 90W Japan Z11 iron core transformer, stepping ALPS 27 WIMA potentiometer(built-in precision resistor), Nichicon and SONICAP capcaitors, rhodium-plated RCA seat and so on.
Parameters
Audio input: 3 groups of stereo RCA + 1 group stereo XLR
Audio output: 2 groups of stereo RCA + 1 group stereo XLR
Tube: 6N11*4 ( can be replaced by E88CC, 6922, 6DJ8)
Input power: AC 100-120V 220-240V 50/60Hz
SNR: DC filament 100dB (when output 2V)
Gain: 6.5 times
Frequency range: 16HZ-100KHz (±0.5dB)
Treble adjustment range: 15KHZ(±6.5dB)
Bass adjustment range: 50HZ(±6.5dB)
Input impedance: 100KΩ
Output impedance: 200Ω
Max output undistortion voltage: 25V RMS
Distortion: 0.2% (VU meter turned off, no negative feedback)
Chassis: full aluminum alloy
Dimensions: 430*330*100mm/16.92*12.99*3.93in
Net weight: 10kg / 22.05lb
Package weight: 14kg / 30.86lb
Packing List
1 x Tube Preamp
1 x Power Cord
Warm tips
1. If you want the best matched power amplifier please click:
LINK
.
2. The position of each tube is specific, before shipping we will test to make it in the best condition, so please don't insert it at random, otherwise its performance will be affected.
3. The filament only supports DC power input now, DC/AC power switch are cancelled and without any functions.
4. The needle of VU meter can be stopped swinging, but the meter lamp cannot turned off.
Payment
Fast Shipping
Return Policy
About us
Contact us
Payment
Safe and secure payment by PayPal.
Fast Shipping
The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver.
Return Policy
Free Return Within 30 Days
We provide free return with 30 days
for all items you bought on eBay, full refund and return shipping will be provided.
1-year warranty
is provided for all items(
Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes).
If you are satisfied with our products and service please leave a 5-star
.
Feedback is very important to us just like our lives, please DO contact us before you leave a neutral
or negative
feedback, we will provide better solutions until you are satisfied.
About us
Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including
Douk Audio / Nobsound / Little Bear
etc.
As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable.
We will spare no efforts to bring great products and service for
customers
and extremely
to
improve our customers’ listening experience.
Contact us
Please don't hesitate to contact us if you have any questions or comments about our items. And
our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at:
Working time
Beijing(CN)
Monday-Friday
09:00 AM - 18:00 AM
New York(US)
Sunday to Thursday
08:00 PM - 05:00 AM
London(UK)
Monday-Friday
01:00 AM - 10:00 AM
Paris(FR)
Monday-Friday
02:00 AM - 11:00 AM
During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation.
Feedback
Save Seller
New Style
Ending Soon
Auction
Buy It Now
On Sale
A spacer is added between the circuit board and the transformer to prevent interference. The specially designed relay input selection circuit does not cause other groups of sound crosstalk to the current channel.