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Neumann BCM-104 - Large Diaphragm Condenser Broadcast Microphone

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Regular price $1,319.00

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Neumann BCM-104 - Large Diaphragm Condenser Broadcast Microphone

  • Operating Principle: Pressure Gradient
  • Capsule: Condenser
  • Polar Pattern: Cardioid
  • Pad: -14 dB
  • Frequency Range: 20 Hz to 20 kHz
  • Maximum SPL: 138 dB SPL152 dB SPL
  • Impedance: 50 Ohms
  • Load Impedance: 1000 Ohms
  • Sensitivity: 22 mV/Pa at 1 kHz into 1 Kilohms
  • Signal-to-Noise Ratio: 76 dB CCIR87 dB A-Weighted
  • THD: 0.5%
  • Output Connectors (Analog): 1 x XLR 3-Pin
  • Operating Voltage: 48 V ± 4 V
  • Operating Current Consumption: 3.2 mA
  • Dimensions: ø: 2.5 x L: 3.35" / ø: 63.5 x L: 85 mm
  • Weight: 1.1 lb / 500 g
  • Package Weight: 1.855 lb
  • Box Dimensions (LxWxH): 8.3 x 4.85 x 4.85"

The BCM-104 Large Diaphragm Condenser Broadcast Microphone from Neumann features a large-diaphragm, cardioid condenser capsule. It has a frequency response that is flat up to 3 kHz and then gradually boosted in the higher frequencies. If required, internal switches can be used to compensate for the proximity effect and to reduce the sensitivity by 14 dB.
The microphone headgrille twists off for quick cleaning. In front of the capsule, mounted on a frame holder, a fine gauze serves as a built-in popscreen. The microphone has an elastic mount against structure-borne noise, that is compatible with standard broadcast-segment microphone arms.
The microphone headgrille houses the K 04 large-diaphragm capsule, which has a flat frequency response up to 3 kHz. Higher frequencies have an increased presence up to 2 dB. Since the above-mentioned microphone characteristics are obtained without the use of resonance effects, the microphone features excellent transient response and transmits all transient phenomena of music and speech without any coloration.
A pop screen not only prevents the occurrence of plosive pop noises in vocal recordings, but also efficiently prevents unwanted particles, from respiratory moisture, nicotine, to food remnants, from settling on the diaphragm. The pop screen can be removed for cleaning without the use of tools.
Instead of a transformer to couple the microphone output to the supply voltage, the BCM-104 has an electronic circuit which, like a transformer, provides for good common mode rejection. Interference induced in the balanced modulation line is thus suppressed effectively. With a very low self-noise of 7 dB(A), and an overload capability extending to 138 dB SPL, the BCM-104 has a dynamic range of 131 dB (A-weighted).
The BCM-104 amplifier has a linear operation down to 20 Hz. An active filter efficiently suppresses signals below this frequency. In order to compensate for the proximity effect, an electronic high-pass filter, activated by a switch, is built into the microphone. This filter reduces frequencies below 100 Hz by 12 dB/octave. A 14 dB pre-attenuation switch is provided in order to adjust the sensitivity, if necessary, to circuits designed for dynamic microphones. But this will increase the self-noise accordingly. Both switches are located inside the microphone housing, since they will normally be operated only once, when the broadcasting facility is set up.
The preferred mode of operation is to suspend the BCM-104 from a standard studio boom arm. A thread adapter to fit different connector threads is included. In order to provide protection from structure-borne noise, both the capsule and the microphone in its mount are elastically suspended.



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1. General
Subject to stock availability. We try to maintain accurate stock counts on our website but from time-to-time there may be a stock discrepancy and we will not be able to fulfill all your items at time of purchase. In this instance, we will fulfill the available products to you, and contact you about whether you would prefer to await restocking of the backordered item or if you would prefer for us to process a refund.


2. Free Shipping
Shipping costs are Free in all our products for all USA.


3. Returns
3.1 Return Due To Change Of Mind
CompuBoutique will happily accept returns due to change of mind as long as a request to return is received by us within 10 days of receipt of item and are returned to us in original packaging, unused and in resellable condition.
Return shipping will be paid at the customers expense and will be required to arrange their own shipping.
Once returns are received and accepted, refunds will be processed to store credit for a future purchase. We will notify you once this has been completed through email.
(CompuBoutique) will refund the value of the goods returned but will NOT refund the value of any shipping paid.
We only reefund the cost of shipping products we ship by mistake or manufacturing defects.


3.2 Warranty Returns
Our products have warranty on manufacturing defects or defective materials. To benefit from the warranty, you must have your original purchase receipt with date readable. The warranty does not cover damages for the use and normal conditions, incorrect installation of software, misuse, defective repair, dismantling by unauthorized persons, use of voltages are incorrect, incidents resulting from acts caused by external agents (fire, lightning, flooding, humidity, etc), no screen, no damage, no software, no imput charger, settings or incorrect changes to the artifact that do not comply with the safety standards of the same.

Repair by the authorized service technician does not affect the date of expiry of the guarantee. The improper handling of the product voids the warranty of all products (no exceptions) cellphones must come whit original case that match the phone imei number. All products waiting for technical support updates must wait until we contact the customer. The waiting time is not on compuboutique but the technical services. Technical support would determined if your products can be fixed or replace for a new one.


4. Delivery Terms
4.1 Transit Time Domestically
In general, domestic shipments are in transit for 2 - 7 days


4.2 Transit time Internationally
Generally, orders shipped internationally are in transit for 4 - 22 days. This varies greatly depending on the courier you have selected. We are able to offer a more specific estimate when you are choosing your courier at checkout.

4.3 Dispatch Time
Orders are usually dispatched within 3 business days of payment of order
Our warehouse operates on Monday - Friday during standard business hours, except on national holidays at which time the warehouse will be closed. In these instances, we take steps to ensure shipment delays will be kept to a minimum.


4.4 Change Of Delivery Address
For change of delivery address requests, we are able to change the address at any time before the order has been dispatched.


4.5 P.O. Box Shipping
CompuBoutique will ship to P.O. box addresses using postal services only. We are unable to offer couriers services to these locations.


4.6 Military Address Shipping
We are able to ship to military addresses using USPS. We are unable to offer this service using courier services.

4.7 Items Out Of Stock
If an item is out of stock, we will cancel and refund the out-of-stock items and dispatch the rest of the order.


4.8 Delivery Time Exceeded
If delivery time has exceeded the forecasted time, please contact us so that we can conduct an investigation


5. Tracking Notifications
Upon dispatch, customers will receive a tracking link from which they will be able to follow the progress of their shipment based on the latest updates made available by the shipping provider.


6. Parcels Damaged In Transit
If you find a parcel is damaged in-transit, if possible, please reject the parcel from the courier and get in touch with our customer service. If the parcel has been delivered without you being present, please contact customer service with next steps.


7. Duties & Taxes
7.1 Sales Tax
Sales tax will be applied to the price of the goods at the time of payment.

7.2 Import Duties & Taxes
Import duties and taxes for international shipments will be pre-paid, without any additional fees to be paid by customer upon arrival in destination country


8. Cancellations
If you change your mind before you have received your order, we are able to accept cancellations at any time before the order has been dispatched. If an order has already been dispatched, please refer to our refund policy.


9. Insurance
Parcels are insured for loss and damage up to the value as stated by the courier.


9.1 Process for parcel damaged in-transit
We will process a refund or replacement as soon as the courier has completed their investigation into the claim