Description
Product Details
The B981 is a powerful 8-channel high-power preamplifier which has dual-sound input with a selector switch. The product provides an independent 3.5mm stereo earphone jack which can drive a variety of high-impedance professional monitor earphones. Each channel can drive 16Ohm-600Ohm and provide 8 stereo channels for output. There are four independent volume knob adjustments to control the 8-channel for simultaneous level signal output, presenting the rich sound quality, well-balanced bass, clear high frequency, and no other signal popping phenomenon, and ensuring lossless and undistorted sound. It can provide +20dB high gain through any line level signal source, allowing running through longer cable lines or "buffering" to solve low volume problems. You can use the product to connect line level signal source and power amplifier as a volume controller. The RCA socket can match almost all other product interfaces. The product is powered by an AC AC9V transformer.
Specification
1. Input impedance: 100K Ohm
2. Input level: +14 dBV
3. Output impedance: 47 Ohm per output channel
4. Frequency response: 20 Hz - 20K Hz
5. Signal to noise ratio: Above 107dB
6. Total harmonic distortion: Less than 0.08%
7. Intermodulation distortion: Less than 0.01%
8. Signal input: two sets of stereo RCA socket
9. Signal output: six sets of stereo RCA connectors and two sets of 3.5mm stereo earphone jack
10. Product power supply: AC9V-12V
11. 4 independent channel stereo level volume output controlling knobs
12. Product net weight: 0.68kg
13. Product dimensions: length 145mm x width 112mm x height 42mm
Package List
1. B981 Professional 8-channel preamp signal-amplifier speaker distributor x 1
2. AC 9V Power adapter (US standard) cable length 100CM x 1
The B981 is a powerful 8-channel high-power preamplifier which has dual-sound input with a selector switch. The product provides an independent 3.5mm stereo earphone jack which can drive a variety of high-impedance professional monitor earphones. Each channel can drive 16Ohm-600Ohm and provide 8 stereo channels for output. There are four independent volume knob adjustments to control the 8-channel for simultaneous level signal output, presenting the rich sound quality, well-balanced bass, clear high frequency, and no other signal popping phenomenon, and ensuring lossless and undistorted sound. It can provide +20dB high gain through any line level signal source, allowing running through longer cable lines or "buffering" to solve low volume problems. You can use the product to connect line level signal source and power amplifier as a volume controller. The RCA socket can match almost all other product interfaces. The product is powered by an AC AC9V transformer.
Specification
1. Input impedance: 100K Ohm
2. Input level: +14 dBV
3. Output impedance: 47 Ohm per output channel
4. Frequency response: 20 Hz - 20K Hz
5. Signal to noise ratio: Above 107dB
6. Total harmonic distortion: Less than 0.08%
7. Intermodulation distortion: Less than 0.01%
8. Signal input: two sets of stereo RCA socket
9. Signal output: six sets of stereo RCA connectors and two sets of 3.5mm stereo earphone jack
10. Product power supply: AC9V-12V
11. 4 independent channel stereo level volume output controlling knobs
12. Product net weight: 0.68kg
13. Product dimensions: length 145mm x width 112mm x height 42mm
Package List
1. B981 Professional 8-channel preamp signal-amplifier speaker distributor x 1
2. AC 9V Power adapter (US standard) cable length 100CM x 1
Specification:
Package Weight |
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Shipping
Shipping policy
We offer fast and reliable shipping for all our clothing items. Orders are processed within 2-3 business days and shipped via standard delivery, which typically takes 8-25 business days.
Express shipping options are also available at checkout for an additional fee, ensuring your fashion essentials arrive even sooner. For any questions regarding your order, please contact our customer service team for assistance.
Shipping from Chinese Warehouse: | ||
Airmail and register airmail | Area | time |
United States, Canada, Netherlands, Spain, Germany, France, Japan, Republic of Korea, United Kingdom | 7-15 business days | |
Australia ,New Zealand, Singapore |
7-15 business days | |
Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland | 7-20 business days | |
Brazil, Russia, Mexico | 15-35 business days | |
Other countries | 7-25 business days | |
EMS | All countries except those listed below | 6-8 business days |
Brazil and Russia | 10-25 business days | |
Expedited Shipping*(DHL) | 3-7business days to worldwide. | 3-7 business days |
Return & Refund
Refund policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at support@reluova.com. Please note that returns will need to be sent to the following address:
T8 BLOCK ROOM312,XINGHUA SMART ZOOM,DONG CHENG STREET,DONGGUAN,DONGGUAN,CHINA,523000,+86 137 9069 5247
If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at support@reluova.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
Provided the conditions in our refund policy have been met, refunds will be processed using the original form of payment. You can return an item purchased online by posting it to us. Please contact customer service for return address. Please note that delivery costs will be excluded from the refund unless goods are returned in accordance with your statutory rights (e.g. they are faulty or not as ordered).
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