Can you put my brand name (logo) on the products?

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.

What payment method do you accept?

T/T(Bank transfer), Western Union, Paypal, Escrow, etc.

Do you have any After-Sales service?

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.

Are you just trading company or factory?

We are professional manufacturer for musical instruments products. We can supply the unrivaled Quality and Services with competitive factory price. Choose Amp, Choose Grand!!!

Custom Grand Dual-Ball Rectifier Single-Ended Class a Tube Amplifier and Pure Power Amplifier

Name: Custom Grand Dual-Ball Rectifier Single-Ended Class a Tube Amplifier and Pure Power Amplifier
Brand: Shenzhen Grand Technology Co., Ltd.
SKU: 1937127505

Guangdong, ChinaShenzhen Grand Technology Co., Ltd.

US$950.68-990.68

1 Piece

Sample price:US$950.68/piece.Request sample

Product profile

Customization

Available

Noise

92dB

Hi-Fi

Model NO.

GX10

Activity

Passive

Operation Mode

Wire / Remote Control

Speaker System

2.0 Channel

Speaker Material

Metal

Application

Push-Pull Tube Amplifier

Certification

CE, RoHS, FCC

Monitor

LED Screen

THD

<0.005%

Customized

OEM, ODM

Rated Output Power

22W + 22W (RMS)

Harmonic Distortion

1% (1kHz)

Input Sensitivity

1000mv

Snr

92dB

Output Impedance

4 8 16ohm

Power Consumption

200W

Transport Package

Double Strong Carton Box

Specification

43*43*26(cm)

Trademark

Grand

Origin

China

HS Code

8518400090

Production Capacity

50PCS/Month

Key features

Class A Single-Ended Design: Uses KT150 vacuum tubes for pure Class A single-ended power amplification.

Handmade Construction: Purely handmade with scaffold welding and Japanese Z11 iron core transformers.

OEM/ODM Customization: Supports OEM, ODM, and OBM services with custom logo and brand options.

Phono-Play Function: Built-in phono stage allows direct connection to vinyl record players.

High-Quality Components: Features MIT Multicap capacitors, ALPS potentiometers, and Russian vacuum tubes.

Remote Control Operation: Includes infrared remote control for volume, mute, and power-on delay functions.

Comprehensive Warranty: Provides 1-year warranty and 7-day return service for all products.

Fast Technical Support: Professional engineers available with 2-hour response time for inquiries.

Company profile

Shenzhen Grand Technology Co., Ltd.Guangdong, China

Business Type: Manufacturer/Factory, Trading Company, Other, Group CorporationExport Year: 2015-04-20Nearest Port: Shenzhen ShekouAverage Response Time: ≤10.53hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, Others

AI-Powered supplier vetting

SummaryShenzhen Grand Technology Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory. It supplies a broad range of musical instruments and related electronics, including guitars, amplifiers, pedals, pianos, and percussion products. The supplier reports ISO 9000 and ISO 9001 certifications, 11–20 years of combined R&D engineer experience, 6–10 quality-control staff, five production lines, and substantial stated annual output for selected products. Exports account for 90% of total sales, with markets spanning multiple regions. The company states that it provides after-sales service and seeks long-term partnerships, but the available information does not independently verify service performance, customization capability, financial strength, or detailed customer references.

Supplier typeThe supplier is explicitly classified as a trading company, manufacturer/factory, group corporation, and other, with a China origin and Guangdong operating province. Its product portfolio and reported production lines and output support involvement in manufacturing as well as trading and export activities.

CertificationsThe supplier reports holding ISO 9000 and ISO 9001 management-system certifications. The slices do not provide certificate numbers, issuing bodies, validity dates, or scope, so the assessment is based on the stated certifications only.

After-Sales capabilityThe company explicitly states that it builds consumer connections through excellent after-sales service and welcomes improvement suggestions. However, no service-process details, response standards, repair resources, or performance records are provided.

Production capacityThe supplier reports five production lines and substantial annual output, including 100,000 guitar amplifiers, 100,000 guitar pedals, 150,000 electric guitars, and 150,000 acoustic guitars, plus 1,500 guitar pianos. These stated capacities provide explicit evidence of production capability across multiple product categories.

Product Q&A

Q:What is your Warranty for the products?

We provide 1 Years' Warranty and 7 days Return Services. More details pls contact our Sales.

Q:May I buy samples from you?

Yes! You are welcome to place sample order to test our superior quality and service.

Q:What's the leading time?

10 working days for sample orders. 30 working days for bulk order (based on different quantities).

Q:How will you deliver my goods to me? How long do I need to wait before my goods arrive?

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.

Q:How is your product quality?

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.