GRAS 26CC 1/4" CCP Standard Preamplifier with SMB 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
  • Plugs into Array Module PR0001(-1)
  • Prepolarized microphones
  • 1/4" precision microphones
  • High levels and high frequencies

Design

The GRAS 26CC 1/4" Preamplifier's small ceramic thick-film substrate has a very high input impedance, and is shielded by a guard ring to minimise the influence of stray capacitance and microphonic interference.

The 26CC is delivered with a built-in TEDS chip, and can be programmed as a single unit with a microphone fitted. It can be used with GRAS 40BE and 40BD ¼-inch prepolarized microphones and 40AE, 40AD and 40AQ ½-inch microphones using the included GRAS GR0010 Adapter for 1/4" preamplifier and 1/2" microphone.

SMB-to-BNC cables in standard and customized lengths are available. The casing is made of stainless steel for maximumstrength 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
SMB
CE/RoHS compliant/WEEE registered
Yes/Yes/Yes
Weight
g / oz
8.0 / 0.28
Specification Conditions

Conditions: 23 °C Ambient temperature, 4 mA / 24 V open loop CCP voltage, 18 pF dummy microphone & 3 m 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

GR0010

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

 

Optional items

GRAS AA0027

3 m SMB - BNC Cable

GRAS AA0082-CL

Customized Length SMB - BNC 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.

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