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AZUR 851W

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Basic Information
Product Name AZUR 851W
Brand CAMBRIDGE AUDIO
Sale Price Php 98,450.00
Mileage Points :984.50
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Product Code P0000HEW
Product Details Power Class XD Amplifier (200W)
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Overview:

The best sounding amplifier Cambridge Audio has ever made

The CAMBRIDGE AUDIO AZUR 851W improves over its already highly respected predecessors in just about every way. At its heart is Cambridge Audio's innovative and proprietary Class XD system, with 12 output transistors per channel. Combining the best of Class A and Class AB and removing the downsides of both, Class XD amplification eliminates crossover distortion like a Class A amp, while offering the power efficiency of Class AB. Its performance has to be heard to be believed.

  • Class XD amplification – Cambridge Audio's proprietary amplification system switches dynamically between Class A and AB systems. Class A amplification delivers the purest possible sound, using only one transistor to conduct, but can be energy inefficient. Class AB involves both transistors conducting simultaneously, but makes it impossible to maintain a balance of low crossover distortion and power efficiency. Our Class XD system operates in both Class A and Class AB mode, dynamically moving the crossover point depending on the audio output volume. This combines the near zero crossover distortion of pure Class A with improved efficiency of Class AB at higher volumes, without any compromises in performance for the best of both world.
  • Serious power – 200W into 8 Ohms stereo mode is serious power. But for those with bigger plans, the 851W is usable in a mono bridged configuration with each amplifier delivering 500W RMS.
  • Two toroidal transformers – Separate, high-end transformers for the power amplifier and input and other circuitry ensure audio performance is unaffected by the dramatic current output swings required to drive demanding speakers, by keeping power supplies entirely separate.
  • Terrapin impedance buffering modules – Cambridge Audio's proprietary modules replace the op-amps commonly found in similar amplifiers. At the critical low level gain stages, these offer far improved stereo separation and imaging – unheard of at this price point.
  • CAP5 proprietary protection – Protects the integrity of your system by avoiding DC spikes, overheating, short circuits or clipping.
  • Integration – Smart auto-standby mode detects incoming audio signals to simplify integration with Cambridge Audio preamplifiers.
  • All-metal chassis – Including extensive use of aluminium to create massive structural rigidity, careful damping and control of acoustic resonance.

Features:

  • Cambridge Audio's Class XD amplification with 12 output transistors per channel combines the best of Class A and AB amplification
  • Separate toroidal transformers for power amp and input/other circuitry
  • Cambridge Audio's Terrapin impedance buffering modules – separating amplifier and signal impedance
  • 200W into 8 Ohms stereo mode or 500W RMS per amp mono bridged mode
  • Cambridge Audio's CAP5 protection from DC spikes, overheating, clipping etc.
  • <0.5W smart auto-standby mode for integration with preamplifiers
  • All metal chassis with premium components, creating massive structural rigidity, careful damping and control of acoustic resonance.
  • Remote Control – Compatible with the entire 851 range
Front Panel Features:

1. Standby/On - Switches the unit between Standby mode (indicated by dim power LED) and On (indicated by bright power LED). Standby mode is a low power mode where the power consumption is less than 0.5 Watts. The unit should be left in Standby mode when not in use. When the 851W is switched out of Standby mode it will automatically check for faults and allow the power amplifier stages to stabilise before un-muting the speaker outputs

2. Output - Indicates that the Left or Right output is active. The LED (light-emitting diode) is on for an active output, off for inactive (i.e. muted).

3. Protection - If this LED is constantly on the 851W has detected a fault on either the Left or Right channel and is protecting itself.

4. Clipping - This LED indicates that the 851W has detected that either the Left or Right channel is being overdriven or clipped

5. Bridged - This LED indicates that the 851W is being used in Bridged mode. (The Mono LED will also be illuminated.)

6. Mono - This LED indicates that the 851W is being used in a Mono mode.

Rear Panel Features:

1. Loudspeaker terminals - For normal wiring, connect the wires from your left channel loudspeaker to the LEFT + & - terminals, and the wires from the right channel loudspeaker to the RIGHT + & - terminals. In each case, the red terminal is the positive output and the black terminal is the negative output

2. Balanced Audio - For connection to the balanced XLR outputs of suitable pre-amplifiers that have this kind of output (such as our own 851E model)

3. Unbalanced Audio - For connection to the normal (single ended) RCA/Phono outputs of a suitable pre-amplifier (such as our own 851E model). The pre-amplifier used should be capable of providing at least 1V rms of output (more is fine). Nearly all modern pre-amplifiers fulfil this requirement.

4. Input Type switch - Use to select a balanced or unbalanced connection type for the input.

5. Stereo/Mono mode switch - Switches the 851W between ‘normal’ Stereo operation (where one 851W is used for a pair of speakers) and Mono operation (where two 851W’s are used one for each speaker).

6. Mono Mode Switch – When mono mode has been selected, switches the 851W between Bi-amped mono and bridged mono.

7. Control Bus

  • In - Allows un-modulated commands from multi-room systems or other components to be received by the unit.
  • Out - Loop out for Control Bus commands to another unit.

8. Trigger In, Out/Thru - For Custom Install use or with preamps and with trigger outputs, the 851W can be turned on and off (i.e. brought in and out of Standby mode) by the presence of 5-12V DC at the Trigger input.

9. IR (Infra-Red) Emitter In - Allows modulated IR commands from multi-room systems or IR repeater systems to be received by the unit. Commands received here are not looped out of the Control Bus

10. AC power socket - Once you have completed all connections to the unit, plug the AC power cable into an appropriate mains socket then switch on. Your unit is now ready for use.

11. Power On/Off - Switches the unit on and off. If the 851W is not going to be used for long periods of time it should be turned off using this switch.

12. Mains Voltage Selector Switch (CU version only) -Switches the 851W mains voltage between 100V and 115V. Note: For use by Cambridge Audio service personnel only!

Unbalanced Stereo Connections:

The diagram below shows the 851W connected to an 851E using the  Unbalanced Audio inputs via phono/RCA connectors, single wired to a  pair of loudspeakers.When using unbalanced (phono/RCA) connections, the Left and Right Input Type switches on the 851W must be in the ‘Unbalanced’ position. Note: In this configuration the 851W must be set to Stereo mode.

Note: AZUR 851E sold separately

Balanced stereo connections

The diagram below shows the 851W connected to an 851E using the Balanced Audio inputs via three-pin XLR connectors, single wired to a pair of loudspeakers.

When using unbalanced (phono/RCA) connections, the Left and Right Input Type switches on the 851W must be in the ‘Unbalanced’ position.

Note: In this configuration the 851W must be set to Stereo mode. When using balanced (XLR) connections, the Left and Right Input Type switches on the 851W must be in the ‘Balanced’ position. Note: In this configuration the 851W must be set to Stereo mode.


Note: AZUR 851E sold separately

 

Specifications:

Power output – stereo/mono

  • 200W per channel into 8 Ohms
  • 350W per channel into 4 Ohms

Power output – bridged mono

  • 500W 8 Ohms
  • 800W 4 Ohms

THD (unweighted)

  • < 0.001% 1 kHz
  • < 0.005% 20 Hz - 20 kHz

Sensitivity – stereo or mono

  • 1.5V rms unbalanced
  • 1.5 + 1.5V rms balanced

Sensitivity – bridged mono

  • 0.775V rms unbalanced
  • 0.775V + 0.775V rms balanced

Input impedances

  • Balanced input 38 kOhm
  • Unbalanced input 68 kOhm
General

  • Frequency response............5Hz – 80kHz
  • S/N ratio (ref 1W / 8 Ohn)............>90dB (unweighted)
  • Power Amp damping factor............. > 110 at 1 kHz
  • Max. power consumption..................2400W
  • Standby power consumption...............Standby <0.5W
  • Dimensions (H x W x D) .................148 x 430 x 365mm (5.8 x 16.9 x 14.4”)
  • Weight .........................................19.1kg (42.2lbs)



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Payment

1. Payment by bank transfer with bank account.(ex.BDO, Metro Bank, etc)

2. Payment via PayPal account : PayPal verified account is required.

3. Payment by credit or debit card via PayPal(Visa, Master, JCB, Amex etc.) : PayPal account is NOT required.

4. Payment by credit card(Visa, Master, JCB, Amex etc.) :3D verified credit cards only are eligible for payment by credit card.

5. Payment by bank transfer without bank account.(ex.LBC, Western Union, etc)

 

 For payment by bank transfer without bank account, the customer may pay by internet banking or telephone banking. The customer may also make payment at local banks. The name of the depositor is required to match the name registered as the depositor when placing the order. Payment shall be made within 7 days from placing the order. The order will be automatically cancelled otherwise.


*Important: All Prices in the website are subject to change without prior notice

Shipping

  • Shipping method : LBC, 2GO, Fedex, DHL, EMS, Air21, AP Cargo, JRC, etc
    Covered destinations : Nationwide
    Shipping cost : may vary on destination and purchase amount
    Shipping time estimate : 2~6 business days(in case of in-stock products). Order-based or imported items may take longer to ship. Please inquire by calling the store or via email whether the item is in-stock or order-based.
    Shipment bound for EMS premium regions : The customer may be required to pay additional cost.

    *Important : Products are to be shipped after the payment is made. Please note that shipping may take longer depending on the products of the order.


     International shipments may be subject to import taxes, duties and customs fees, which are levied once your package reaches the country of destination, and are the responsibility of the recipient. In case that the customer refuses to receive the parcel, the products are to be returned to Philippines and will not be shipped again. According costs(shipping, customs and etc) are the responsibility of the customer and will be deducted from the refund.


Returns & Exchanges

  Please make sure you have selected right options(e.g. size, color and quantity) prior to completing the order.
Once the order is completed, it is assumed that the customer agreed on our exchange/refund policy.
Exchanges and refunds are accepted only if the exchange/refund request is proven valid for the following reasons.

 

Eligible for exchanges and refunds:
On condition that the package (Labels, tags) of the products are intact.
-       Sold out products
-       Wrong item delivered
-       Defective products

-       Shoddy Goods

Ineligible for returns and exchanges:
-       Products with customer-induced damages
-       Products whose value is decreased significantly due to elapsed time or other reasons and are not in condition for re-sale
-       Change of mind

* (Please contact us or Email customer service for details)

 

Exchange/refund procedure
For exchanges/refund, the customer is required to post an exchange/refund request on the “Q&A” board.

The request is to include the reason for exchanges/refunds and the order number.
In case of exchange/refund request due to product defects or wrong item delivered, detailed photos of the products are also required. Exchanges/refunds will be made shortly upon careful examination and confirmation on the reported defects. 


The shipping costs occurring from product defects or wrong item delivered are the responsibility of the channel.com.ph.



>Warranty

channel.com.ph will repair any product under warranty at no charge or replace the unit of the exact model if deemed necessary.


If repair of returned merchandise is necessary due to neglect, damage, misuse, or improper repair by others, a charge will be made for labor, parts, and return freight.



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