TOA DA-250FH Multichannel Power Amplifier
The DA-250FH is a 4-Channel Digital Power Amplifier designed for 70 V line high-impedance distribution and features lightweight, compact, high power output, and high efficiency. It delivers 250 W × 4 channels (19.6 Ω output) using a switching power supply. Each channel is equipped with an independent power section. It can be electrically isolated from the high-impedance speaker system by attaching the MT-251H Output Transformer (optional). It can be mounted in an EIA Standard equipment rack (1 unit size).
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TOA Digital Amplifier technology
redefines the very
concept of amplifiers.
The power supply unit is the heart of the amplifier.
To ensure consistently high performance and reliable operation,
TOA engineers have given the DA Series
a system that provides power independently to each channel.
This testifies to TOA's attitude to product development,
which is always totally motivated by the desire to provide
high-quality products that offer worry-free use.
Never compromise —
that's the TOA philosophy.
Specification
| Power Source | 120 V AC, 50/60 Hz |
|---|---|
| Amplification System | Class D |
| Power Consumption | 200 W (based on UL/CSA standards) 1200 W (rated output 70 V line, 19.6 Ω × 4) |
| Input | 4 circuits, +4 dB* (1.23 V) (input level control in maximum position), 10 kΩ, electronically-balanced, removable terminal block (3 pins) CH 1 mode ON/OFF switch (ON: CH 1 to All ch, OFF: Each ch) |
| Rated Output | 4 channels: 250 W × 4 (70 V line, 19.6 Ω) 2 channels (BRIDGE): 500 W × 2 (140 V line, 39.2 Ω) M4 screw terminal, distance between barriers: 8.8 mm |
| Frequency Response | 20 - 20,000 Hz (±1 dB): HPF OFF/50 - 20,000 Hz (-3 dB, +1 dB): HPF ON (selectable with the inner jumper) |
| Total Harmonic Distortion | 0.1% (1 kHz), 0.3% (20 - 20,000Hz): HPF OFF 0.1% (1 kHz), 0.3% (100 - 20,000 Hz): HPF ON |
| Protection Circuit | Protection against excessive current flow due to overload, short circuit, unusual DC voltage output, temperature rise at power amp. heat sink (110℃ or more), temperature rise inside the unit (80℃ or more) |
| S/N Ratio | 100 dB (A-weighted) |
| Crosstalk | 70 dB (A-weighted) |
| LED Indicator | Power (blue) × 1, Input (green) × 4, Output (yellow) × 4, Peak (red) × 4, Protect (red) × 4 |
| Cooling | Forced air cooling |
| Operating Temperature | -10℃ to +40℃ |
| Operating Humidity | 90% RH or less (no condensation) |
| Finish | Panel: Aluminum, black, alumite Case: Plated steel sheet |
| Dimensions | 482 (W) × 44 (H) × 401.8 (D) mm |
| Weight | 6.6 kg |
| Accessory | Power cord (2 m) …1, Removable terminal plug (3 pins) …4, Tamper-proof cap …4 |
| Option | Matching transformer: MT-251H |
SHIPPING & DELIVERY
送貨方式
We have three kinds of delivery services
我們有三種送貨服務
1. Pick up in our shops 在我們的商店取貨
Target customers : living in Hong Kong or having friends living in Hong Kong who can help to pick up the orders in our shops
目標客戶：居住在香港或有香港居住的朋友，他們可以來到我們的各個商店取貨
2. Door to Door Service 點到點服務
Target customers : Hong Kong Local customers and oversea customers in specified oversea countries
目標客戶：本地客戶和海外客戶在指定海外國家的地區
Our system will calculated gthe delivery fee according to your shipping destination in Hong Kong local area and the specified oversea countries.
我們的系統將根據您在香港當地運送目的地和指定的海外國家計算出所需運費。
For Hong Kong local cutomers, we will use our own logitis team to provide our delivery service.
對於香港本地的客戶，我們將使用我們自己的貨運團隊來提供我們的送貨服務。
For the oversea customers, we will use DHL or UPS to fulfill the delivery.
對於海外客戶，我們將使用DHL或UPS貨運來完成交付。
3. Pick up in SF stations 在順豐服務站
Target customers : living in Hong Kong or having friends living in Hong Kong who can help to pick up the orders in SF stations
目標客戶：居住在香港或有住在香港的朋友，他們可以在不同順豐服務站點接收貨件
Customers can select the closest SF stations from their working or living areas when placing orders for picking up the products.
客戶在下訂單時可以從工作地點或生活區域選擇最近的順豐服務站。
Delivery service type: If you choose a SF Express Courier .Once your order has been dispatched, Foresoon Computer Engineering Company Limited is not responsible for any losses or damages and delay.
凡選購以順豐站自取的貨品,一經本公司送出,之後責任由貴客自理,本公司一概不負任何責任
Please note that these Terms may be amended from time to time without prior notice. You are advised to check it on a regular basis.
SALES SERVICE
銷售服務
We have FOUR ways for you to easily place order. They are simple, easy and reliable. Because we are Foresoon Computer, the one of the largarest Computer Chain Stiores in Hong Kong.
我們有四種方法讓您輕鬆下訂單。非常簡單，容易和可靠。因為我們是香港最大的電腦連鎖店之一的科訊電腦有限公司。
1. From Web 網上訂購
Click the "Buy Now" button and follow the very simple three steps to finish the order
點擊“加入購物車”按鈕，並按照簡單的三個步驟完成訂單
2. By email 通過電子郵件
Send your order directly to our sales team at buy@foresoon.com.hk
直接發送您的訂單到我們的銷售團隊buy@foresoon.com.hk
3. Via Call 致電給我們
Call our Customer Service Team at (852) 28349983
致電我們的客戶服務團隊（852）28349983
Click the quick connect link (852) 60155577 to WhatsApp 
us for the price, delivery arrangements and supports
單擊快速連接（852）60155577到WhatsApp 詢問我們貨品的價格，交貨安排和支援
Also our Customer Service Team can provide service of products consultation, checking delivery status and requesting quotation.
同時我們的客戶服務團隊可以提供產品諮詢服務，查閱交貨狀態和詢問報價。
Working Hour : 09:00 - 19:00 ( Mon- Fri)
辦公時間：上午09：00 - 晚上19:00（週一至週五）
Address : Room 07, 2/F., Kingsford Industrial Centre, 13 Wang Hoi Road, Kowloon Bay, Hong Kong
地址：香港九龍灣宏開道13號景發工業中心2字樓07室
Tel 電話 : 852 27184618
email 電郵 : buy@foresoon.com.hk
WhatsApp to Order : One Click to order
WhatsApp訂購：一鍵訂購
Mobile 手機: +852 98092833 , +852 66269232
Please note that these Terms may be amended from time to time without prior notice. You are advised to check it on a regular basis.
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