Ruifeng Professional Line Array Speaker Power Amplifier Ka4.4 with Class D Design, Low Temperature and High Efficiency Output

• Type: Professional Amplifier
• Usage: AV, KTV System, Conference Hall,Stadium,Multi-Functional Hall
• Used For: Professional
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: KA4.4
• Tube Type: Class D
• Function: Pre-amplifier
• Sound Channel: 2×400W
• Output Number: 4
• Voltage: 190V~260VAC,50~60Hz
• Element Number: Pfc
• Conductive Mode: D
• Item No: Ka4.4
• Frequency Response(1W): 20Hz~20kHz,±0.5dB
• Total Harmonic Distortion(Thd): ≤0.05%
• Dampering Factor: >300
• S/N Ratio: >100dB
• Input Sensitivity: 0.775V
• Slew Rate: 30V/Us
• Input Impedance: 20kohms(Balanced)/10kohms(Unbalanced)
• Separation: >60dB
• Input Cmmr: >70dB
• Input Socket: XLR Female
• Connector: XLR Male
• Output Socket: Spring Terminals
• Dimension(W×h×d): 483×89×357mm
• Net Weight: 7.6kg
• Transport Package: 45X483X461mm
• Specification: 4 channel
• Trademark: RF
• Origin: Guangzhou, China
• HS Code: 8518400090
• Production Capacity: 2000PCS/Month
• Package Size: 490.00cm * 95.00cm * 345.00cm
• Package Gross Weight: 8.300kg

Product Description

Ruifeng audio provides a number of high-quality sound reinforcement system projects, which specializes in government project, theatre, auditorium, multi-functional hall, outdoor broadcast, hotel banquet hall, entertainment area, stadium etc,. To become the leading audio brand at home and abroad is Ruifeng Intelligence goal.

Our products sale at home and more than 50 countries and areas such as America, Europe, South America, Middle East, South Asia etc,. Ruifeng sincerely welcome you to become a distributor of us and keep a long-term and stable cooperative relationship.

Product Name: 4 Channel KA sereis power amplifier

Specification

8Ω Stereo power	4×400W
4Ω Stereo power	4×700W
Frequency response	20Hz-20kHz(±0.5dB)
THD+N	<0.1%
S/N Ratio	≥100dB
Input Sensitivity	0.775V
Input impedance	20KΩ(balance),10KΩ(unbalance)
Protect	short circuit,DC,temperature,VHF, anti-shock functions
Power Supply	190-260V ~50-60Hz
Dimension(HxWxD)	89x483x357mm
Weight	7.6Kg

Features

1.KA Series features a unique hybrid Class D design, low temperature and high efficiency output.
2.The machine is more secure with protection of short circuit,DC,temperature,VHF, anti-shock functions,once activated the amplifier is locked.
3. Automatic transimission fan with optimized cooling system ensures more stable performance of the machine.
4.Light weight design, convenient for movement and installation.
5.Patented dynamic voltage limit control power circuit,protect system is always in a safe working state, while the dedicated distortion elimination circuit ensures that the power amplifier is in the minimum distortion state.

Premium material and module





Application

Conference Hall,Multi-function Hall,Stadium,Rock Bar,Night Club,KTV

Certification:

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FAQ:

Q1:How long is the warranty for the speakers?
A1: 1 year warranty.

Q2: How about the delivery time?
A2: 3-7days for stock.
(10-20 days for new order depend on order quantity since receipt of 30% T/T deposit payment)

Q3: What kind of payments does RF support?
A3: T/T, Western Union, Cash are accepted.

Q4: What's the MOQ?
A4: MOQ is 2pcs.

Q5: Can you produce according to customers' design?
A5:We are professional manufacturer, OEM&ODM are welcome.

Q6: What is your sample policy?
A6: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the freight.

Q7:Do you test all your products before delivery?
A7: Yes, we have 100% test before delivery. We make sure our good quality.

Our Advantages:

1) Audited supplier by SGS international certificate organization
2) Product quality: Superior speaker and amplifier, top technology and quality.
3) Certificate: CE,RoHS,SGS,ISO9001,ISO14001,ISO27001,ISO20000-1,ISO18001
4) Monthly Production Capacity: 2000pcs
5) Fast delivery: Get your order when you need it.
6) 5000 square meters workshop, with about 200 workers and 20 professional engineers
7) Professional and Skilled in audio knowledge  ---can design complete audio system for you
8) Convenient Transportation: 1 hour to Guangzhou port
9) 24 hours after sales service.

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