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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 6 left in stock, order soon!
Arrives
Sunday, Dec 28
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Features
- Built-in Automatic Antenna Tuner: The automatic antenna tuner and power amplifier unit of XPA125B can be used independently of each other as either an automatic antenna tuner or a separate power amplifier. The tuner handles 14-500 ohm loads in the HF bands and 6-meter band.
- 100W Power Output: The XPA-125B is the perfect amplifier for QRP radios or SDR transceivers with low power consumption (like a 5-watt transmitter) when 100-watt output is needed. Its maximum power output is 125 watts.
- Safty & Protection: The XPA125B has a variety of intelligent protection circuits to ensure the safety of the amplifier and connected transceiver. When abnormal operating conditions appear like SWR is too high, too much drive power, or too high temperature, the amplifier enters bypass mode and displays an alarm message.
- New Enhanced Version: After improving its shape and size from XPA125, it is smaller than the old version and can be worn on a bracelet like a small bag.
- Large Screen Display: The 2.7 inch large backlit LCD display shows input/output power, SWR, Voltage, Current, Temperature, amplifier status as well as warning messages making the operation of this modern amplifier simple and also user friendly.
Brand: Xiegu
Connectivity Technology: HDMI
Controller Type: Push Button
Special Feature: Digital Display
Compatible Devices: Smartphone, Speaker
Total HDMI Ports: 4
Connector Type: HDMI
Audio Output Mode: Stereo
Surround Sound Channel Configuration: 5.1
Video encoding: RM
Package Dimensions: 13.82 x 8.82 x 7.68 inches
Item Weight: 8.4 pounds
Item model number: 9
Date First Available: December 13, 2023
Manufacturer: Xiegu
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Dec 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Great Amp for the price. Antenna tuner works great if properly configured (refer to attached photo for tuning instructions). I am using it with my IC-705 and can get about 100W output with about 1W drive. Based on comments from others, the drive level may vary to get full output, but it seems to always give full output with 5W or less drive. I wanted to use this amplifier for POTA and ARRL Field Day use. I don't like to move my base radio, so I grab the IC-705 and XPA125B for all my outdoor or field day work! For POTA, it was always frustrating when someone could not hear me with 5W output. With the XPA125B, I always seem to make reliable contacts. As mentioned in prior reviews, the XPA125B will not automatically switch bands, you must remember to manually switch the band on the amp by pressing the "BAND" button. This is more of an inconvenience and not a problem for me. Typically, I am not "band jumping" anyway. Once I get my antenna up and tuned, I will typically remain on that band for my outing. I researched several other amplifiers in the 100W range before buying the XPA125B. Most other amplifiers did not have an ATU and if they did, the cost was much higher. Please refer to the attached photo of the ATU tuning instructions I created. The XPA125B tuner has worked great for me, but you must follow the tuning instructions to get everything tuned properly (the manual does not cover this very well).
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Reviewed in the United States on October 30, 2025 by Rick Rick
ATU NEEDS redesign. Linear works great! Very small of input wattage provides great output wattage. 1 watt in provides 50 watts output.
Reviewed in the United States on November 9, 2025 by Over the hill
The Xiegu amplifier XPA125B is a marvelous unit that works great. Since buying it I've operated the amp on all bands but 6 meters. Excited by my G 90 and HL-2 transceiver. With about 1.5 Watts of drive the amp produces around 115 Watts out. I'm very happy with the unit. The fact it has a very robust antenna tuner is great as well. Before I bought the Xiegu amp I had tried several cheap no name amps that either failed after a short time or never worked from day one. Don't waste your money on the Noname brands get the Xiegu you will be happy you did.
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Reviewed in the United States on October 25, 2025 by Kindle Customer
I think it would been great if it worked. Sent back.
Reviewed in the United States on July 11, 2024 by Clara D. Hunter
I have used this for almost a year, to turn my ICOM 705 into a mobile base station. Besides not doing auto band switching, the amp has worked great! It’s amazing how easy it is to punch thru pile ups with 100w of fairly clean power. Tuner works great too! Great value for the money.
Reviewed in the United States on August 17, 2025 by Jeff ashmann Jeff ashmann
Can hit this guy with .2-.5w and see 80-85w pep out! So 2-3w or that 5w qrp rig will excite this guy to full power. If swr is ideal and tuner is at a minimal reflect, also depending on band of operation, an easy 100w+ is obtainable with this unit! Up to 125w pep shown on display and is accurate with swr, band, tuner, amp, voltage. Input swr and output swr with watts simultaneously displayed! Great tuner with what we believe is a 10:1 capacity! Not many do this! Works on 160m fine. 43ft worked great but only needs the 4:1 to work. Value for money and functionality! Just an awesome lil amp! One thing I’d add is that silent but turbo muffin fan or two!!! ;) cheers 73 w8rbj
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Reviewed in the United States on September 23, 2024 by Gerald S.
I got this to use with my IC-705. First, it's so heavy I'd never use it for portable operation, I'd just take my old IC7000 (much lighter than the 705, amp, etc.). I got the amp cable off of Ebay and it works for the amp only, but takes up the accessory jack so as far as I can tell is I can't link the tuner to my 705 when I use the amp. Tuner is limited in ability. I used my home QTH dipoles and they appeared to tune ok (1.0 - 1.3), but with the amp on went up and I got the warning message. My LDG PRO tuners work fine on these but they'll tune a 10:1 SWR. I did tune (my pre-tuned) 10M solarcon 2000 and did transmit with no issues. Note that my QRP MAT-Tuner tunes the dipoles just fine on 5 or 10w. Display is decent, comes with a handle, but I'd hardly consider this nice for portability due to the weight factor.
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Reviewed in the United States on August 30, 2024 by John O
I am updating my review as I was expecting this amp to work like amps I have used in the past. Instead of an internal relay sensing the RF and switching the amp to transmit, it needs a special cable to connect to the radio. This needs to be purchased separately and you need the right one for your radio. This information in the description would have saved me a lot of trouble. The advantage of the cable is automatic band switching. The amp does have a good wide bandwidth. Testing it with a dummy load and an unlocked xiegu 6100 it achieved between 80 to 100 watts from 1.6 Mhz to 30 Mhz. Did not test it on 50. The antenna tuner gave me great results with the xiegu vg4 antenna allowing me to use 80 meters. I could hear myself on an sdr located 400 miles away. 160 Meters was not achieved with the antenna but it's no big deal.
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Reviewed in the United States on December 19, 2024 by mr s w cuthbert