2021 Custom New HiFi Integrated Amplifier Single-Ended Class a Vacuum Tube 300b Tube Guitar AMP

Product Description

Specification: Technical Parameters:
Rated output power: 8W + 8W (RMS)
Harmonic distortion: 1% (1KHZ)
Overall Frequency response: 10HZ ~ 50KHZ (-1.5DB)
Input Sensitivity: 150mv (0db) 260 mV (-3db) 420mV (pre in)
Input impedance: 100KΩ V
SNR: 92db
Output Impedance: 4Ω 8Ω 16Ω
Net Weight: about 34kg
Package weight: about 36kg
Left and right output balance level: < 1db
Machine power consumption: 155W
Use a vacuum: 6SL7 (JJ or EH) × 2
6SN7 (JJ or EH) × 2
Grand customized 300B × 2
Shuguang 274B × 2
Dimension (W × D × H) :430 × 393 × 236mm
Power supply voltage: Switch between AC 110-120V 220-235V ± 5% (50Hz)
Working conditions: Temperature: 0 ºC~ 40 ºC Humidity: 20% to 80%
Storage conditions: Temperature: -20 ºC ~ 70 ºC Humidity: 20% to 90%
Features:
Hand made point to point designe easy for upgrad components
using two high quality and wide frequency response EI output transformer
Using a customize Z11Toroidal power transformer.
Using two Shuguang customized 274B high level rectifier.
Using 2X6SL7and 2X6SN7 triode pre-amp tube, and two 300B tube for power output ,which can give a transparent, delicat and smooth sound.
Power tube bias adjust, current and dyanmic voltage output by UV meter,
Infrared remote control
Power current mute delay to protect the amp and tube
ALPS motor potentiometer.
Easy installation of the plug-type tube metal cover
Tube replace table:
6SL7: 6N9P, 6H9C, ECC35, 6SC7, 6CY7
6SN7: 6N8P, 6H8C, 6H8M, 6H8J, CV181,QB65, ECC32
300B: WB300B, 4300A
274B: 5Z3P, 5BX1, 5U4C, GZ30, 5Z4G/GT

Amp Name	2021 Custom New HIFI Integrated Amplifier Single-ended Class A Vacuum Tube 300B Tube Guitar Amp
Technical Parameters	Rated output power: 8W + 8W (RMS) Harmonic distortion: 1% (1KHZ) Overall Frequency response: 10HZ ~ 50KHZ (-1.5DB) Input Sensitivity: 150mv (0db) 260 mV (-3db) 420mV (pre in) Input impedance: 100KΩ V SNR: 92db Output Impedance: 4Ω 8Ω 16Ω Net Weight: about 34kg Package weight: about 36kg Left and right output balance level: < 1db Machine power consumption: 155W Use a vacuum: 6SL7 (JJ or EH) × 2 6SN7 (JJ or EH) × 2 Grand customized 300B × 2 Shuguang 274B × 2 Dimension (W × D × H) :430 × 393 × 236mm Power supply voltage: Switch between AC 110-120V 220-235V ± 5% (50Hz) Working conditions: Temperature: 0 ºC~ 40 ºC Humidity: 20% to 80% Storage conditions: Temperature: -20 ºC ~ 70 ºC Humidity: 20% to 90%
Components	Pot/Bias Japan, Sweden brand, etc
Features	Hand made point to point designe easy for upgrad components using two high quality and wide frequency response EI output transformer Using a customize Z11Toroidal power transformer. Using two Shuguang customized 274B high level rectifier. Using 2X6SL7and 2X6SN7 triode pre-amp tube, and two 300B tube for power output ,which can give a transparent, delicat and smooth sound. Power tube bias adjust, current and dyanmic voltage output by UV meter, Infrared remote control Power current mute delay to protect the amp and tube ALPS motor potentiometer. Easy installation of the plug-type tube metal cover
Tube replace table	6SL7: 6N9P, 6H9C, ECC35, 6SC7, 6CY7 6SN7: 6N8P, 6H8C, 6H8M, 6H8J, CV181,QB65, ECC32 300B: WB300B, 4300A 274B: 5Z3P, 5BX1, 5U4C, GZ30, 5Z4G/GT
Customized	OEM, ODM, OBM
Tube Brand	Ruby, Shuguang, JJ, EH
Brand	Grand or custom as per logo plates

Introduction:
Our company has 230 workers, include 15 professional engineers. They supervise the whole producing line from choose material till packing. We can strictly arrange the products as your requests.
Grand Technology is a manufacturer of musical instruments and accessories, which brand is "Grand".
Our factory is located in one of the most important ports of South China, Shekou, Guangdong, Near HK, connects with main highways and airports.
As the professional manufacturer, we supply kinds of musical products such tube guitar amplifiers, hand wired tube guitar amps, point to point amps, replica pedals and amps, electric guitars, acoustic guitars, ukulele, banjo, piano, etc many kinds of musical Instrument gears.
We only provide good quality products with low prices, which are selling well in the international markets, such as USA, Europe, Japan, Korea, South Africa, Kenya, South America, etc. We have plenty experiences in exporting, and be good at holding the mainstream of musical instrument markets.
At present, we establish technology, purchasing, and sales groups to serve our customers. We are thinking in your way, doing as your requests and eager to be your reliable supplier.
Any inquiry will be welcome and highly appreciated.
Tube Amplifier Precautions: 1. Tube amp must connected with speakers before turning ON. Strictly prohibit send signals to amp without connected loads(speakers) or load short circuit when the switch is ON. 2. Too high or too low power supply voltage does irreversible harm to the amp,preferably less than 5% of the specified voltage. If your mains voltage exceeds this value, often best to use with the AC power supply. 3. Temperature is higher when tube amps working, placing attention to ventilation, cooling. 4. In the boot or just shut down for a period of time (within 30 minutes) Do not spill liquid on the tubes. 5. You should take about 100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method. 6. If you donot sure how to plug the tubes, please contact us before try it Speakers connection: All tube amplifier used with stereo mode: L(left) and R(right) speakers. Normally there are 6 speaker cable connectors: +8L, +4L, -0L, -0R, +4R, +8R Example: +8L and -0L are for connecting with your Left 6-8ohms speaker -0R, +4R is for connecting with your Right 4ohms speaker About Us : We are dedicated to offer the best audio-visual products at the lowest price to our customers. Bringing great products and customer service, and thus help enriching our customers' lives is our ultimate goal.
Custom amplifier project?
We are specialized in OEM/customize guitar, AMP, pedal, etc order, if you need a customize guitar amplifier, please feel free to talk with us.
Please feel free to ask me project example for reference.
Please beware the customize guitar AMP can take as long as 45-90 days depends on AMP schemaitc complex term.
Our Services:
1. OEM/ODM factory direct.
2. Professional engineers who have the ability to create what customers need.
3. High quality guarantee with competitive price.
4. Have a full set of testing equipment for products' functions to ensure reliable quality.
5. Fast feedback within 2 hours.
6. Shipping on-time.
7. Aftersale service, if any reason in our side, we can free exchange for you.
8. All of our product have attained CE, RoHS and related certificates approval.
FAQ:
Q1:What is your Warranty for the products?
A1:We provide 1 Years' Warranty and 7 days Return Services.
More details pls contact our Sales.
Q2:May I buy samples from you?
A2:Yes! You are welcome to place sample order to test our superior quality and service.
Q3: What's the leading time? (How long do you need to prepare my goods?)
A3:10 working days for sample orders.
30 working days for bulk order (based on different quantities).
Q4: How will you deliver my goods to me? How long do I need to wait before my goods arrive?
A4:We offer many shipping ways like DHL, UPS, FedEx, TNT ,EMS to enable our customers get their goods rapidly at door. We also ship by economic method such as air cargo and sea cargo, Direct line, Air Mail according to clients' request.
3-7 days for international express, 5-7 days for air cargo, 20-40 days via sea cargo.
Q5: How is your product quality?
A5:We provide unrivaled Quality - Very rigorous testing process for Incoming Quality Control, Input Process Quality Control, and Final Quality Control for every piece. We follow 20 QC test procedure, and do 100% FQC to ensure your satisfaction.
Q6: Can you put my brand name (logo) on the products?
A6:Yes! We can provide professional OEM services to make it your brand even for your trial sample order.
A7: If your order is over 20pcs, we can make your own logo badge brand on the amp for free! About other more details, it's according to your special requirement.
Q8: What payment method do you accept?
A5: T/T(Bank transfer), Western Union, Paypal, Escrow, etc.
Q9: Do you have any After-Sales service?
A9:Yes! We have professional After-sales service
If you have any technical problem or questions with the goods, welcome to contact our Technical Support Dept. or our sales directly.
Q10: Are you just trading company or factory?
A10: We are professional manufacturer for musical instruments products. We can supply the unrivaled Quality and Services with competitive factory price.
Choose Amp, Choose Grand!!!