Optimal Audio Up 4O 4-inch Open-Back Ceiling Speakers (Pair)
฿ 5,800
or pay just ฿ 580
per month at
0% interest
Installment Details
×Choose your installment plan on the payment page during checkout!
| Bank | Interest % | Period | Monthly |
|---|---|---|---|
| Bangkok Bank Cards (BBL) | 0% | Up to 9 months | ฿ 644 |
| KBank Cards (Kasikorn Thai) | 0% | Up to 10 months | ฿ 580 |
| Krungsri Cards (BAY) | 0% | Up to 9 months | ฿ 644 |
| Krungsri First Choice Cards (KFC) | 0% | Up to 10 months | ฿ 580 |
| Krung Thai Cards (KTC) | 0% | Up to 10 months | ฿ 580 |
| SCB Cards (Siam Commercial/CardX) | 0% | Up to 10 months | ฿ 580 |
| TTB Cards | 0% | Up to 10 months | ฿ 580 |
In stock
In stock
Delivery information
ProPlugin delivers your parcels through Thailand Post. All parcels are shipped through Thailand Post's EMS Service to ensure fast delivery options!
|
Delivery within Thailand |
|
|---|---|
|
Bangkok metropolitan area |
Delivery within 1 business day |
|
Chiang Mai province |
Delivery within 2 business days |
|
Remote areas |
Delivery within 3 business days |
|
All other destinations within Thailand |
Delivery within 1 business day |
*Shipping times apply if ordered before 12.00 noon (add 1 business day if ordered after 12.00 noon)
Returns policy
Your satisfaction is important to us. If you've changed your mind about your order, you may request a return within 15 days of receiving your order! If you wish to initiate a return, please contact our customer support team.
Please note that the product must be unopened/sealed, and some exclusions apply, for example on software. Please carefully read our full returns & refund policy.
Warranty coverage
Warranty included (1 year)
Most of our products come with a standard 1-year warranty covering manufacturer defects and electronic malfunctions under normal usage.
If a product is under warranty, we provide free repairs at our repairs centre for music equipment in Bangkok. If the product broke within 15 days after your purchase, we'll provide you with a brand new product.
If you wish to initiate a warranty claim, please contact our customer support team.
Additionally, you read our full warranty policy.
Payment & installments
Orders from 3000 THB are eligible for payment in up to 10 installments.
Installments are currently only supported for customers that use a Thai-issued creditcard from select Thai banks.
You can select your preferred installment option during your payment.
Flagship Store
In-store availability
Do you prefer to buy this product in store? Check the availability below.
Please select a variation
3
People watching this product now!
Combine and pay less!
-3%
sE Electronics V2 SWITCH – Handheld Dynamic Microphone with On/Off Switch
In stock
Original price was: ฿ 1,890.฿ 1,833Current price is: ฿ 1,833.
Optimal Audio Up 4O is a small wireless speaker equipped with the latest technology to deliver high-quality sound for both indoor and outdoor use. It features a modern design and is easy to maintain.
Key Highlights
Premium sound quality in a compact size: Delivers clear, rich, and excellent detailed sound with a balanced frequency range. Despite its small size, it provides impressive audio performance.
Designed for permanent installation: This is a passive speaker specifically designed for permanent installations. It is durable and features a design that blends into the environment, making it suitable for retail spaces.
Supports 100V Line and Low Impedance systems: It comes with a built-in 70V/100V transformer with selectable wattage taps (e.g., 15W, 7.5W, 3.75W, 1.9W), and can also be used in a Low Impedance (16 ohms) system, offering flexible installation options for a large number of speakers in wide areas.
Easy and flexible installation: It comes with a cleverly designed wall bracket that allows for quick and easy speaker installation and precise angle adjustment to direct the sound.
Simple design that blends with any decor: The speaker has a modern, simple, and compact shape designed to fit various interior styles. Available in both black and white, it remains unobtrusive while delivering high-quality audio performance.
Details and Features:
Design:
Compact size: It does not have a back can, making it suitable for installation in ceilings with limited space.
Simple design: It blends into the environment and looks seamless after installation.
Protective grille: Features a perforated steel grille with a cloth backing, in white (an accessory option for a bezel-less grille is available).
Sound Quality:
Frequency response: 87Hz – 15kHz (±3dB), -10dB at 60Hz.
Rated power (AES): 10W.
Sensitivity: 93dB (1W/1m).
Maximum SPL: 100dB (continuous).
Dispersion angle: 130 degrees conical, providing comprehensive coverage and is ideal for both music and speech.
Connectivity and System:
Line voltage: Supports 70V/100V line operation.
Power taps: Offers multiple wattage options at 70V (6, 3, 1.5, 0.75W) and 100V (6, 3, 1.5W).
Tap selection: Done by rotating a switch located behind the removable grille.
Optimal Audio system integration: Recommended for use with Optimal Audio’s SmartAmps or Zone Series for optimal audio performance and speaker protection via built-in presets, as well as easy setup and control through ZonePad and WebApp.
Installation:
- Includes Integrated Mounting Hardware for a convenient and clean installation.
- Comes with installation accessories such as ceiling tile support rails (2 rails for 2-foot or 600mm ceilings), a cutout template, a paint shield, and a removable multi-pin connector.
Free next day delivery on orders above 500 THB*
Warranty protection for products
Pay in interest-free installments
Always providing service with a smile
Warranty
Warranty included (1 year)
We've got you covered!
- Repairs centre for music equipment in Bangkok
- Free repairs if covered by warranty
- Check your warranty status at any time in your account
Experience this product in our stores
- Get professional advice from our product experts
- Explore the latest music equipment from world renowned brands
- Test studio equipment in our in-house music studio
ProPlugin Stores
Free next day delivery on orders above 500 THB*
Warranty protection for products
Pay in interest-free installments
Always providing service with a smile
Recently viewed
Specifications
General specifications
| Weight | 7 kg |
|---|---|
| Brand | Optimal Audio |
| Color | White |
| Warranty Period | 1 year |
It's a fantastic choice!👍
Let's start your new musical journey right now
Optimal Audio Up 4O 4-inch Open-Back Ceiling Speakers (Pair)
฿ 5,800
Free next day delivery on orders above 500 THB*
Warranty protection for products
Pay in interest-free installments
Always providing service with a smile
Chat via LINE → 
Chat via Messenger →
Reviews
Clear filtersThere are no reviews yet.