Tel : +86 17359287459
Email : sales9@apterpower.com

Inquiry stage
Send me part number & company name & whatsapp & email address

Payment stage
Once price confirmed, I will make ProForma Invoice with bank account for you to pay.

Shipment stage
Order your parts and arrange collection on the same day from our warehouse, either in person or by courier.

| WhatsApp: +86 17359287459 | Email: sales15@amikon.cn | Add: Siming district, Xiamen, Fujian, China |
The SIGNATURE SERIES G.R.A.S. 12HF is a single-channel power module designed for low-noise acoustic measurements with matched G.R.A.S. 40HF, 40HH, and 40HT microphone systems. It supplies 200 V microphone polarization and ±15 V preamplifier power, provides a 30 Ω BNC signal output, and allows pressure or free-field response selection. The SIGNATURE SERIES G.R.A.S. 12HF supports precision measurements where the microphone system must resolve extremely low sound-pressure levels.
| Frequency response | 2 Hz to 20 kHz ±0.2 dB | Input channels | 1 |
|---|---|---|---|
| Output channels | 1 | External power supply | 6 to 20 VDC |
| Output impedance | 30 Ω | Battery supply | 4 x LR14 C cells |
| Preamplifier supply | ±15 V | Fuse | 315 mA fast |
| Polarization voltage | 200 V | Operating temperature | -10 to +50 °C |
| ABB PSM0004 2RCA025059A0001R | ABB DIS0002 2RAA005802A0001H | ABB SL/S50.1 GHQ6050051R0001 | ABB CI840A 3BSE041882R1 |
| ABB DI810 3BSE008508R1 | ABB AI880A 3BSE039293R1 | ABB AO845A 3BSE045584R1 | ABB PM590 1SAP150000R0261 |
| ABB SB822 3BSE018172R1 | ABB DC551 1SAP420500R0001 | 6ES7153-2BA02-0XB0 | 6GK5208-0BA00-2AB2 |
| 6ES7214-1AG40-0XB0 | 6ES7522-1BL01-0AB0 | 6SL3040-1MA01-0AA0 | 1768-PA3 |
| 1746-NI4 | 1756-IF8 | 1771-OAD | 1766-L32BWA/B |
| AAI143-S00-S1 | SDV144-S33/PRP | ALR121-S00 | AAI835-S00 |
| NFDV551-P10 | BMXNOE0100 | BMXCPS3020 | BMXAMI0810 |
| BMXP342020H | TM3AQ4 | IC200CPUE05-MX | IC695ALG600-FE RX3I |
| IC200MDL940E | IC693ALG442-EB | IC200MDL750E | EDS-510A-3GT |
| KFD2-CRG2-EX1.D | QJ71E71-B2 | CK70AA5KNU3W2100 | RM7895B1013 |
Ewolomodule sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks. Ewolomodule is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
Disclaimer: Ewolomodule sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks.Ewolomodule is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.