GRAS 26CB 1/4" CCP Standard Preamplifier with Microdot Connector

Freq range: 2.5 Hz - 200 kHz
Noise: 1.8 µV Gain: -0.35 dB
Special feature: General purpose

Technology

Typical applications and use

  • CCP inputs
  • Prepolarized microphones
  • 1/2"-inch precision microphones
  • High levels and high frequencies

Design

Its small ceramic thick-film substrate has a very high input impedance and is shielded by a guardring to minimize the influence of stray capacitance and microphonic interference.The GRAS 26CB is delivered with a built-in TEDS chip and can be programmed as a single unit with a microphone fitted.

The diameter is 6.35 mm (1/4"), length 44 mm and weight 8g (0.3oz)

It can be used with all prepolarized microphone cartridges, such as GRAS 40BE and 40BD 1/4" microphone and GRAS 40AE, 40AD, and 40AQ 1/2" microphones using the included GRAS GR0010 Adapter for 1/4" preamplifier and 1/2" microphone. It has an integrated Microdot output connector. The casing is made of stainless steel for maximum strength and durability.

Specifications

Frequency range (±0.2 dB) with 18 pF microphone dummy
Hz
2.5 to 200 k
Slew rate
V/µs
20
Input impedance
GΩ // pF
20 // 0.4
Output impedance
Ω
< 50
Output Voltage Swing, min. @ 24-28 V CCP voltage supply
Vp
8
Noise (A-Weighted) max.
µV
2.5
Noise (A-Weighted) typ.
µV
1.8
Noise (Linear 20 Hz – 20 kHz) max.
µV
6
Noise (Linear 20 Hz – 20 kHz) typ.
µV
3.5
Gain
dB
-0.35
Power supply (Constant Current Power)
mA
2 to 20 (typ. 4)
DC bias voltage, typ.
V
12
Temperature range, operation
°C / °F
-30 to 70 / -22 to 158
Temperature range, storage
°C / °F
-40 to 85 / -40 to 185
Humidity range non condensing
% RH
0 - 95
TEDS UTID (IEEE 1451.4)
769 v. 0.9
Connector type
Microdot 10/32
CE/RoHS compliant/WEEE registered
Yes / Yes, Yes
Weight
g / oz
8.0 / 0.28

Conditions: 23 °C Ambient temperature, 4 mA / 24 V open loop CCP voltage, 18 pF dummy microphone, 3 m output coax-cable.


Typical low-frequency response of Type 26AL for ½″ (20 pF), ¼″ (6.5 pF) and ⅛″ (3 pF) microphones


Typical max. rms output signal with 120 V and 30 V supply

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice. 

Dimensions

Ordering info

Included items

GRAS GR0010

Adapter for 1/4" preamplifier and 1/2" microphone

Optional items

GRAS AA0070

3 m Microdot - BNC Cable

GRAS AA0073-CL

Customized Length Microdot - BNC Cable

GRAS AA0087-CL

Customized Length Microdot - Microdot Cable

GRAS AL0029

1/4" Microphone Holder, POM

GRAS AL0013

1/4" Microphone Holder, Stainless Steel

GRAS AL0005

Swivel head

GRAS AL0006

Tripod

GRAS RA0063

Adapter for 1/8" microphone and 1/4" preamplifier

GRAS RA0006

Right-angled (90º) Adapter for 1/4" Microphone and 1/4" Preamplifier

GRAS RA0080

6pF Preamplifier-input adapter for 1/4" microphones

GRAS 12AL

1-Channel CCP Power Module with A-weighting filter

GRAS 12AQ

2-Channel Universal Power Module with signal conditioning and PC interface

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

Get Quote

I accept to be contacted regarding my request. I also consent to receive any updates of the data in question. We log data to send you an email with links to the documents requested and provide you with future updates of the data in question.