# 2669B Bruel & Kjaer Amplifier Used

**Features:**

-   Full electromagnetic compatibility (EMC)
-   Detachable, thin cable for easy installation
-   Compact LEMO connector at preamplifier
-   Patented charge-injection calibration technique for on-site calibration of the whole measuring channel including the microphone
-   Wide dynamic range
-   Very low inherent noise, high input impedance
-   Low output impedance and high output current allows use with long extension cables
-   Wide working temperature range

The preamplifier has a very high input impedance presenting virtually no load to the microphone. The high output voltage together with an extremely low inherent noise level gives a wide dynamic range.1/2-inch Microphone Preamplifier Type 2669 is a Falcon Range product for making precision acoustic measurements with Brüel & Kjær’s wide range of condenser microphones. You can connect 1/2-inch microphones directly and 1-inch, 1/4-inch and 1/8-inch types using adapters.

The preamplifier, cable and its connectors all fulfil EMC requirements.

You can verify the condition of the microphone, preamplifier and cable on-site using its patented charge injection calibration technique.

The preamplifier’s low output impedance allows the use of long extension cables without problems.

## Details

- **Price:** 0.0 USD
- **Vendor:** Bruel & Kjaer
- **Type:** Amp Oth
- **Tags:** Amplifier, Bruel & Kjaer, Manufacturers, Other, Other Equipment, product_manual_group_1, Product_used

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- 2669B Bruel & Kjaer Amplifier Used

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> Source: [ValueTronics](https://valuetronics.com/products/2669b-bruel-kjaer-amplifier-used)
> Updated: 2026-05-21