In the context of strong development of sound technology, traditional karaoke amplifiers are gradually becoming outdated, no longer meeting the increasing singing needs of families. Instead, new generation digital echo and power amplifiers are dominating thanks to their ability to process professional sound, effectively prevent howling and save space.
To help customers upgrade their karaoke system to save costs while still experiencing the most modern sound quality, Phuc Truong Audio offers the service "Buy old amplifiers - upgrade to new digital echo", with support up to millions of Dong.

Why should you use the service of collecting old amplifiers and upgrading to digital echo?
There are 5 reasons to upgrade: clearer sound, effective reduction of howling, saving investment costs, neater arrangement and providing a professional singing experience. This is the choice to help your karaoke system be both modern and durable over time.
- Smooth sound, effective anti-howling: Digital echo is equipped with a modern DSP processor, adjusting each sound range in detail, eliminating noise and minimizing the howling phenomenon commonly found in old amplifiers.
- Save investment costs: Instead of buying a whole new karaoke system, you just need to change the old amplifier and pay a small amount to own a modern digital reverb + power amplifier.
- More tidy space: Compact digital echo and power amplifier duo, easy to arrange, replaces bulky amplifiers that take up a lot of space.
- Environmental friendliness: Recycling and recycling old amplifiers helps reduce electronic waste and protect the environment.
- Professional singing experience: Enhanced sound quality, clear vocals, vivid background music like a studio or mini stage.
How does the process of converting old amplifiers to new digital echoes take place?
With just 4 clear steps, you can quickly upgrade your karaoke system: send information, directly assess at the store, choose a suitable new digital echo, offset costs to complete the transaction. Thanks to that, customers can both save costs and immediately own a modern, stable sound system.
Step 1: Send information and pictures of old amplifier to receive preliminary quote
First, customers need to prepare basic information of the old amplifier:
- Clear photos of all angles, front, back, labels, serial numbers (if any).
- Description of condition: still working well, no damage or technical errors.
- Brand and model information for staff to easily look up equipment values.
Then, send all information and images via Phuc Truong Audio's quick contact channels such as:
- Zalo: [0907 777 058]
- Direct hotline: 0907 777 058
Upon receipt, the consulting team will review and provide a preliminary quote within 30 minutes - 2 hours, helping customers visualize the conversion value before bringing the product to the store.
Step 2: Bring the device to the store for a technician to directly evaluate it.
After receiving a preliminary quote, the customer brings the old amplifier to the showroom. Phuc Truong Audio to conduct an assessment.
- The team of technicians will check the overall condition of the equipment: appearance, wear, performance, internal components.
- If the amplifier is still working well, the valuation may be higher than the preliminary quote.
- If the amplifier is seriously damaged, as long as the frame is intact, Phuc Truong Audio still supports exchange.
- The inspection process is carried out publicly and transparently right at the store, customers can monitor directly.
- Once the appraisal is complete, the customer will receive the final valuation in writing or by text message to ensure clarity.
Direct appraisal helps customers feel absolutely secure, while ensuring the fairest conversion value for each product.
Step 3: Choose the right digital echo line to upgrade
After determining the value of the old amplifier, customers will be advised to choose a new generation digital echo suitable for their needs and room space.
Diversified product segments: From popular karaoke digital echo models that effectively prevent feedback, to high-end models with powerful DSP processing capabilities, detailed adjustment of each sound range.
Consulting according to actual needs:
- Small family → compact, easy-to-use mini digital echo.
- Commercial karaoke room → digital reverb + power amplifier, high volume response, durable operation.
- Professional singing enthusiasts → high-end digital reverb with smart presets, easy to adjust to vocals.
Real experience at showroom: Customers can directly test many different digital echo models, sing with wireless microphones and listen to music on speakers to feel the difference.
Our team of audio technicians will compare features, prices, and warranties between models to provide the best solution for customers.
With this dedicated support, customers can not only exchange new equipment, but also choose the most suitable product for their karaoke system.
Step 4: Clear costs and complete the transaction
After choosing a satisfactory digital echo model or digital echo + amplifier combo, Phuc Truong Audio The value of the old amplifier will be directly deducted from the new product invoice.
- Transparent Payment: Customers only need to pay the remaining difference (if any). Everything is clearly shown on the invoice to ensure transparency.
- Support multiple payment methods: Cash, bank transfer, or card swipe are all accepted.
- Genuine product commitment: Digital echo and karaoke amplifier all have full labels and genuine warranty cards from 12 to 24 months.
- Service Package: Technicians will support delivery, installation and calibration of equipment on site (if requested by the customer).
- Fast time: The entire process from when the customer brings the amplifier to the store until receiving the new digital echo only takes 30 - 60 minutes.
Thanks to that, customers can both save costs and quickly own a modern digital echo, bringing a superior sound experience to the karaoke system.
What types of used amplifiers does Phuc Truong Audio accept?
With the desire to create the most favorable conditions for customers, Phuc Truong Audio accepts to purchase a variety of karaoke amplifier lines, without limitation on brand or condition. Specifically:
- Multi-brand karaoke amplifier: from popular to high-end lines such as Jarguar, California, Paramax, Arirang, Nanomax, BMB, Yamaha, Denon, Onkyo...
- Imported and hand-carried amplifiers: Products purchased from abroad, without warranty stamps in Vietnam, are still priced and exchanged normally.
- Used Amplifiers: still working or partially damaged, low capacity, not meeting singing needs.
- Old damaged amplifier: Scratched, dented, missing buttons, broken circuit board, but still has the original frame.
- Amplifier warranty expired: Still supported by Phuc Truong Audio to upgrade to new digital echo.
In addition, other devices such as old mechanical and digital echoes, power amplifiers are also included in the exchange list.
Thanks to this flexible purchasing policy, customers can easily "upgrade" to a new generation of digital reverb without worrying about the condition of their old equipment.
Outstanding advantages of the old amplifier exchange service for new digital echo at Phuc Truong Audio
When choosing the old for new exchange service at Phuc Truong Audio, customers not only receive support for device upgrades but also receive many outstanding benefits:
- Transparent and public pricing: All used amplifier products are clearly evaluated, quoted in writing or by text message for customer peace of mind.
- Support for multiple devices: From karaoke amplifiers, old analog and digital echoes to power amplifiers are all in the exchange category.
- Save investment costs: Customers only need to pay a small difference to own a new digital echo, saving up to millions of dong.
- Genuine products, full warranty: Digital echo and karaoke amplifier at Phuc Truong Audio all have genuine labels and warranty cards from 12 to 24 months.
- Top-notch singing experience: New generation digital echo processes detailed sound, prevents microphone howling, for smooth, realistic vocals.
- Professional service: A team of dedicated technicians provides advice, installation support and calibration at home.
- Brand reputation: With many years of experience in the audio field, Phuc Truong Audio is trusted by thousands of customers in Ho Chi Minh City and the provinces.
With the above advantages, the service of collecting old amplifiers and upgrading to new digital echoes at Phuc Truong Audio not only helps customers save costs, but also brings a completely new, more modern and professional sound experience.
Frequently asked questions about the service of converting old amplifiers to new digital echoes
Can severely damaged amplifiers be purchased?
Yes. Even the ones amplifier completely damaged, no longer usable, as long as the frame is intact Phuc Truong Audio still support trade-in to help customers save on upgrade costs. In many cases, customers can even take advantage of the value of old equipment to exchange for new digital reverb.
Explore more: Karaoke amplifier has noise, distortion, howling and effective solutions.
I live in a remote province, can I still join the program?
Absolutely possible. Customers just need to send pictures and amplifier information via Zalo or Hotline to receive a preliminary quote, then send the product to the showroom for a technician to directly evaluate. After having the final result, Phuc Truong Audio will advise and support to change to a new suitable digital echo.
Read more: Should I choose analog or digital echo for karaoke system?
If I have many old devices such as amplifiers, echoes, and power amplifiers, can I exchange them at the same time?
Yes. Phuc Truong Audio accept exchange of various equipment, from traditional karaoke amplifiers, mechanical sound, digital echo old life until power amplifierMany customers choose to bring the entire set of old equipment to convert into a modern digital mixer + amplifier combo, both saving costs and upgrading the karaoke system.
How long does the renewal process take?
Normally, the entire process from when the customer brings the device to the store, appraisal, digital mixer selection and payment completion only takes about 30-60 minutes. For customers who live far away, the time will depend on the shipping stage, but Phuc Truong Audio Always try to process as quickly as possible so you don't have to wait long.
Read more: Professional, reputable, and affordable old karaoke system upgrade service
Upgrade karaoke system easy with old amplifier purchase service - exchange for new digital echo at Phuc Truong AudioContact us now for transparent pricing, reasonable cost compensation and on-site installation!

Related posts
Real or fake Bose speakers? 5 tips to know right away – Avoid buying fake genuine products
How to identify real and fake Bose speakers is not only a necessary skill...
Home karaoke speakers often break down? 5 common reasons and effective ways to prevent them
Karaoke speakers are one of the most easily damaged devices in a sound system...
Class AB and Class D power circuits on amplifiers – which is the optimal choice for karaoke systems?
In a karaoke system, the amplifier is the central device that plays the role of amplifying...
Guide to choosing the right headphones: For gaming, listening to music or studying online with the best sound quality
Headphones - Indispensable personal audio devices in life...
Discover FBE anti-feedback technology: The solution for clear sound
FBE (Feedback Eliminator) anti-howling technology is currently considered one of the...
What is speaker sensitivity? Does it affect sound quality? Find out now!
Speaker sensitivity is an important factor in determining sound performance...