Whatsapp Contact:
Shenzhen Grand Technology Co., Ltd
Specification:
technical parameter
Rated output power: 22W+22W(RMS)
Harmonic distortion: 1% (1KHZ) Frequency response of the whole machine: 10HZ~70KHZ(-1.5DB)
Input sensitivity: 160mv(0db) 260 mV (-3db) 1V(pre in)
Input impedance: 100KΩ
Signal to noise ratio: 92db Output impedance: 4Ω 8Ω 16Ω
Left and right output balance: <1db
Power consumption of the whole machine: 200W
Use vacuum tube: 6SL7×2, 6SN7 (Russia)×2, KT150 (Russia)×2 5Z3P*2
Machine volume (W×D×H): (440×400×230)mm
Power supply voltage: ~230/115V±5% (50Hz)
Working conditions: Temperature: 0ºC~40ºC Humidity: 20%~80%
Storage conditions: Temperature: -20ºC~70ºC Humidity: 20%~90%
Features of this machine:
1.Purely handmade, the whole machine adopts scaffold welding
2.Using two high-quality, wide-frequency response and high-quality Japanese Z11 iron core square output transformers.
3.Use a high-power Z11 iron core toroidal power transformer specially designed for this machine.
4. The voltage part adopts two 5Z3Ps for full-ball rectification
5. The whole machine uses Russian electronic tubes:
6SL7 and 6SN7 vacuum tubes are used for voltage amplification,
KT150 vacuum tube is used for class A single-ended power amplification. It fully reflects KT150's unique personality of fineness, transparency, good positioning and good control.
6. Peripheral KT150 power tube current adjustment knob
7. Pointer output level display of left and right channels, power tube current display meter.
8. Infrared function remote control.
9. Power-on high voltage delay and mute delay function (about 30 seconds).
10. Volume and mute function remote control.
11. Adopt American high-quality American MIT Multicap coupling capacitors.
12. With pure post-stage function, it can be connected with independent pre-stage signal input.
13. It has a phono-play function and can be connected to a vinyl record player.
14. Choose Japanese ALPS custom motor potentiometer.
15. Pluggable vacuum tube protective cover for easy installation.
| Amp Name | Custom Grand Dual-Ball Rectifier Single-Ended Class A Tube Amplifier and Pure Power Amplifier |
| Technical Parameters | Rated output power: 22W+22W(RMS) Harmonic distortion: 1% (1KHZ) Frequency response of the whole machine: 10HZ~70KHZ(-1.5DB) Input sensitivity: 160mv(0db) 260 mV (-3db) 1V(pre in) Input impedance: 100KΩ Signal to noise ratio: 92db Output impedance: 4Ω 8Ω 16Ω Left and right output balance: <1db Power consumption of the whole machine: 200W Use vacuum tube: 6SL7×2, 6SN7 (Russia)×2, KT150 (Russia)×2 5Z3P*2 Machine volume (W×D×H): (440×400×230)mm Power supply voltage: ~230/115V±5% (50Hz) Working conditions: Temperature: 0ºC~40ºC Humidity: 20%~80% Storage conditions: Temperature: -20ºC~70ºC Humidity: 20%~90% |
| Components | Pot/Bias Japan, Sweden brand, etc |
| Features | 1.Purely handmade, the whole machine adopts scaffold welding 2.Using two high-quality, wide-frequency response and high-quality Japanese Z11 iron core square output transformers. 3.Use a high-power Z11 iron core toroidal power transformer specially designed for this machine. 4. The voltage part adopts two 5Z3Ps for full-ball rectification 5. The whole machine uses Russian electronic tubes: 6SL7 and 6SN7 vacuum tubes are used for voltage amplification, KT150 vacuum tube is used for class A single-ended power amplification. It fully reflects KT150's unique personality of fineness, transparency, good positioning and good control. 6. Peripheral KT150 power tube current adjustment knob 7. Pointer output level display of left and right channels, power tube current display meter. 8. Infrared function remote control. 9. Power-on high voltage delay and mute delay function (about 30 seconds). 10. Volume and mute function remote control. 11. Adopt American high-quality American MIT Multicap coupling capacitors. 12. With pure post-stage function, it can be connected with independent pre-stage signal input. 13. It has a phono-play function and can be connected to a vinyl record player. 14. Choose Japanese ALPS custom motor potentiometer. 15. Pluggable vacuum tube protective cover for easy installation. |
| 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 |
| 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.
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!!!
