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Description
LINEPAUDIO A977 2 In 2 Out Switcher Full-balance Passive Preamp Active Speaker Double Sound Source Volume Controller, A977Product Functions 1. A977 passive preamp active speaker volume dual channel controller is small in size and suitable for active speakers or preamp post amp, it supports full balance or input and output of single ended signal. The product has functions of independent L R channel volume adjustment, 2 signals input and 2 signals output. It provides balanced XLR and unbalanced RCA connectors which are automatically converted to each other, with a selector
Product Functions1. A977 passive preamp active speaker volume dual-channel controller is small in size and suitable for active speakers or preamp/post-amp, it supports full-balance or input and output of single-ended signal. The product has functions of independent L/R channel volume adjustment, 2 signals input and 2 signals output. It provides balanced XLR and unbalanced RCA connectors which are automatically converted to each other, with a selector switch facilitates the signal switch of input/output.
2. Small size, big intelligence. The product is of small size, but has well-function connecters. It is suitable for decoders and speakers without volume adjustment. the product has the design of balanced input/output and RCA input/output architecture, with switching function. The operation of the product will not cause loss of signal source. Generally, the audio signal released from the decoder is the original sound source signal. Great dynamics will not cause loss of sound quality, retaining the complete original signal source.
Specification
1. Input/output impedance: 10KΩ - 50KΩ
2. 2 in 2 out switchover, unbalanced RCA connector and balanced XRL connector for input/output
3. Input: unbalanced RCA connector / balanced XLR connector (convert selection)
4. Output: unbalanced RCA connector / balanced XLR connector (convert selection)
5. Product net weight: 320g
6. Product dimensions: length 145mm x width 65mm x height 43mm
Specification:
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.9 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Perfect inserts for a great price
Size: 20 x 20 inches, Style: 4 Pack, Size: 20 x 20 inches, Style: 4 Pack
Great inserts! (The cat’s judgement is of me, not the inserts)
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Hands down best hammock accessory
Color: Green, Size: Medium
Tried many, this pillow is perfect. Not too big, not too small. Soft yet supportive. It’s also well made and super comfy. Plus it packs up nicely. I’m a new Wise Owl convert, everything I’ve ordered so far has been excellent quality. Just wish they kept the colors consistent so it all matched (minor annoyance). You need this.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfy, soft, packable, and cool
Color: Green, Size: Small
I absolutely love this pillow. It's well constructed but not OVER constructed - it is soft, comfortable to my neck and head - very packable and stays pretty cool - like the 'other side' of the pillow. I also appreciate the stuff sack that Wise Owl sends with it. I was able to get this down into my right side of my Redwing 50 pocket. This thing fits everywhere and while some folks think its a luxury, when you get to be my age - comfort is something that you take for granted. I feel well rested after a night on this bad boy.
Shape always fluffs back out. I think it's a great value at the price point it is at compared to other pillows in this range. Very very durable, like all Wise Owl products I own. Easily fits snugly into the bag, and can mold around you depending on how you want to adjust it. I don't use a sleeping pad, just this for my neck support and it really is worth every penny.
Water resistance - I'm not sure as I've not had the opportunity to see it but I feel like with the material it is, water would probably bead off in light amounts.
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Reviewed in the United States on December 20, 2025
★★★★★ 4
It's comfy but not UL nor packs down well.
Color: Blue, Size: Medium
Don't get me wrong, overall this is a very good mini portable camping pillow that has slightly bigger length, width & thickness than most of the other name brand inflatable camping pillows that cost $20 extra, which is nice for having more pillow/support to work with while you sleep, & it being foam filled rather than inflated means you don't have to worry about it deflating on you overnight out in the wilderness where you likely don't have a backup!..
All that is great until it's time to pack it back up..
It doesn't compact down small, nor easily. You have to put a little elbow grease into tightly rolling it up like a burrito, 🌯
And even Then, it's still a bit of a fight to squeeze it back into it's compression sack, but Still winds up being a bulky bulgy chunk of space real estate in my pack, and if you're a serious hiker you know every ounce counts as well as every inch of space that's taken up by bulky gear.
I didn't consider returning or replacing it for something else until wayy past the return window.
Again, it's not bad at all for your average travel or weekend camping trips, but for expedition, section or thru-hiking it's not the best choice to go with when budgeting weight & space in your pack.
I went with a similarly priced Teton camping pillow that is 18" by 12", also filled not inflated so it's basically the same thing but ever so slightly smaller in circumference, yet packs down noticably easier & more compact, weighing slightly less & taking up noticably less space in your pace as well.
I can easily stuff it in the outer back kangaroo pouch on my Osprey Atmos AG 50L.
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Reviewed in the United States on January 28, 2025
★★★★★ 5
Soft and Confortable
Color: Rose, Size: Medium
Excellent travel and camping pillow. Soft and confortable. My wife loves it.
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Reviewed in the United States on May 26, 2026
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