Product Details

U 87 AI

Large Dual-Diaphragm Condenser Microphone(Studio Set)

Overview
U 87 Ai Condenser Microphone from Neumann is a large dual-diaphragm condenser microphone. It features three directional patterns, including omnidirectional, cardioid and figure-8. These are selectable with a switch below the head grille and the window above this switch shows the symbol of the selected characteristic. A 10 dB attenuation switch is located on the rear. It enables the microphone to handle sound pressure levels up to 127 dB without distortion. The low frequency response can be reduced to compensate for proximity effect.The U 87 Ai is used as a main microphone for orchestra recordings, as a spot microphone for single instruments, and extensively as a vocal microphone for all types of music and speech.The U 87 Ai is addressed from the front. The frequency response of the cardioid and figure-8 directional characteristics are very flat for frontal sound incidence, even in the upper frequency range. The microphone can be used very close to a sound source without the sound becoming unnaturally harsh. By means of a high-pass filter, interference through subsonic and low frequencies are reduced.The circuitry increases operational headroom of the U 87 Ai by supplying the bias voltages for the capsule through a reduced resistance. The result is a higher sensitivity of 10 dB for identical sound pressure levels, and an improved S/N ratio of 3 dB.

Features

A switch located at the rear attenuates the sensitivity by 10 dB. When this switch is activated, the microphone accepts sound pressure levels up to 127 dB (equivalent to a sound pressure of 45 Pa) without distortion. An additional switch at the rear allows to change the microphone's cutoff frequency. This reduces low frequency interference directly at the input of the microphone amplifier. This setting also compensates for the unavoidable bass boost that occurs with all pressure gradient transducers when they are used at close distance (proximity effect).The cardioid characteristic maintains a smooth frequency response at a distance of 30 to 40 cm, and the figure-8 characteristic at a distance of 15 to 20 cm.

- Variable large diaphragm microphone

- Pressure-gradient transducer with double membrane capsule

- Omnidirectional, cardioid, and figure-8 characteristics

- Switchable low frequency roll-off

- Switchable 10 dB pre-attenuation

- Great as a main or as a support microphone

Specifications          

Analog Performance

Operating Principle        Pressure Gradient

Transducer        Condenser

Polar Pattern     Cardioid, Figure-8, Omnidirectional

Pattern Selection           Switched

Frequency Range          20 Hz to 20 kHz

Signal to Noise Ratio     71 dB CCIR

69 dB CCIR

68 dB CCIR

82 dB A-Weighted

80 dB A-Weighted

79 dB A-Weighted

Equivalent Noise Level  23 dB CCIR

25 dB CCIR

26 dB CCIR

12 dB A-Weighted

14 dB A-Weighted

15 dB A-Weighted

Maximum SPL   117 dB SPL

Pad      -10 dB

THD      0.5%

Impedance        200 Ohms

Load Impedance           1000 Ohms

Sensitivity         28 mV/Pa at 1 kHz into 1 kOhms

22 mV/Pa at 1 kHz into 1 kOhms

20 mV/Pa at 1 kHz into 1 kOhms

General

Output Connectors        1 x 3-Pin XLR

Operating Current Consumption 0.8 µA

Operating Voltage         48V ± 4 V

Length  7.87" / 200 mm

Diameter           2.20" / 56 mm

Weight  1.10 lb / 500 g

Packaging Info

Package Weight            5.65 lb

Box Dimensions (LxWxH)          11.5 x 11.5 x 6.1"

What’s In The Box

- Neumann U 87 Ai Condenser Microphone (Studio Set)

- Neumann EA87 - U87 Shock Mount for U87 Microphones

- Wooden Box

Payment

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

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

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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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