XiangSheng 728A EXQUIS 12AT7 12AU7 6Z4 HIFI Vacuum Tube Preamplifier with Tone

Features:
- Wonderful stereo Pre-Amplifier, built with the best parts available
- The pre-amplifier improved based on famous Wada Shigeho's Style Electric circuit,which was Introduced by Wada Shigeho in the early 1960s and gave an excellent performance.
- Regarding the Wada Shigeho's Style Electric circuit,it not only still keep the good features of Marantz7,meanwhile have superrior features in Dynamic,
- High / lLow Frequency Response, Resolution and Signal to Noise Ratio as compared to Marantz7.
- But apart from above features, it's also not inferior to Marantz7 in Sound stage and airy feeling.
- Adopt 4pcs paper in oil capacitors and German WIMA capacitors for coupling effect,make the sound warm and delicate.

Specifics:
- Model: 728A
- Input Power: AC100V-AC240V available 60Hz / 50Hz
- Output Tube: 12AT7 × 2,12AU7 × 2,6Z4 × 2
- Input Sensitivity: 400mV
- Input impedance: 100K
- Output Impedance: 600 ohm
- Signal / Noise Ratio: 90dB
- Frequency Response: 10Hz - 30KHz
- Humidity: 35% -80%
- TMD: less than 0.01%
- Input Jack: 4 groups
- Output Jack: 2 groups
- Weight: 8 kg
- Size: W430mm × H80mm × D290mm
- Color:  Black/ white,will be delivered randomly

Packing Includes:
- 1 x Preamp

Detail photo

FAQ 

Q1. Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

Q2. What about the lead time?

A: Samples arrived often need 3-5 days.

Q3. Do you have any MOQ (minimum order quality)limit?

A: Low MOQ, 1pc for sample checking is available.

Q4. How do you ship the goods and how long does it take to arrive?

A: We often ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping is also optional.

Q5. How to proceed an order?

A: Initially, let us know your requirements or application. Besides, We quote according to your requirements or our suggestions. Thirdly, customers confirms the samples and places deposit for formal order. Finally, We arrange the production.

Q6. Is it acceptable to print my logo on the product?

A: Yes. Please inform us formally before our product and confirm the design firstly based on our sample.

Q7: Do you offer guarantee for the products?

A: Yes, we offer one-year warranty for our products.

Q8: How to deal with the flaw?

A: Our products are produced in strict quality control system and the percent of pass is often maintained over 99.8%

Packing&Shipping

Package: Normally we use the standard exporting packaging. We also can according to clients' request .

 Shipping : 

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier  we are co-operating at present.

2. By Air: Delivery from the Shanghai airport to customers’ destination city air port.

3. By Sea: Delivery from the Shanghai sea port .

Company information

TZT has been speciliazing in Business & Industry,Hobbies & Toys,CNC Products and Health care supplies for over 5 years.We committed to enhance customer satisfaction by continually improving the process with a vision of expertise in the field. 
Aiming to provide high quanlity products and great service for buyer,we are strict on product quanlity control and offer instant communication service.Welcome to contact us!

Our Advantages:
-  Source only the best consumer goods and ensure the highest quality.
-  Streamline the buying and payment process, and make it as easy as possible.
-  Help the customers all over the world discover products and manufacturers in China.
-  The Shortest order processed time and speed delivery