YAQIN MS-23B Hifi Tube Phono Amplifier 12AX7 Preamplifier Preamp Tube Amplifier. Used but in excellent condition and perfect working. Comes with RCA cable and extra tubes. Specifications:Tubes: 12AX7B × 2 (Voltage preamplifier)Output Voltages: 0.5V (400Hz input/500mv)Output Jacks: One group of gold plated RCA jacksInput Sensitivity: ?4.0mV (400Hz, 0.5V output)Input Jacks: One group of gold plated RCA jacks plus a grounding terminalSignal-to-Noise Ratio: >85dB (A weight)Distortion of Harmonic Wave: ?0.11%(400Hz input)Cartridge Suitability: MM (Moving Megnet) cartridgeSupply Voltage: AC115V 60HzDimension:17cm(W) x 20cm(D) x12cm(H) (7” x 8” x 5”)Net Weight: 3kgShipping Dimension: 27cm x 23cm x 21cmGross Weight: 4kg

Introducing the YAQIN MS-23B Hifi Tube Phono Amplifier 12AX7 Preamplifier Preamp Tube Amplifier. This model comes in black and is a single-channel amplifier that has five inputs for easy use. The stereo L/R RCA audio inputs allow for high-quality sound output. The model is from the brand Yaqin and has a model number of MS-23B. The amplifier is a tube type, making it perfect for those who are looking for high-quality sound output. With its preamp tube amplifier, this model is sure to deliver exceptional sound performance. This product belongs to the Consumer Electronics, TV, Video & Home Audio, Home Audio, Receivers & Amplifiers, and Amplifiers & Preamps categories. New out of box never beeen used

Introducing the YAQIN MS-23B Hifi Tube Phono Amplifier 12AX7 Preamplifier Preamp Tube Amplifier. This model comes in black and is a single-channel amplifier that has five inputs for easy use. The stereo L/R RCA audio inputs allow for high-quality sound output. The model is from the brand Yaqin and has a model number of MS-23B. The amplifier is a tube type, making it perfect for those who are looking for high-quality sound output. With its preamp tube amplifier, this model is sure to deliver exceptional sound performance. This product belongs to the Consumer Electronics, TV, Video & Home Audio, Home Audio, Receivers & Amplifiers, and Amplifiers & Preamps categories. New out of box never beeen used

Bid with confidence. I have 100% feedback, because I take close-up well lighted photos which show true condition of this pre-amp, with no surprises. I package my electronics to travel well and always ship quickly. MS-23B Phone Preamp : Tubes: 12AX7*2 Output voltage: 0.5v(400Hz input ) Output jacks: one group of gold plated RCA jacks Input Sensitivity: 4.0mv(400Hz ,0.5V output ) Input jacks: one group of gold plated RCA jacks, plus grounding terminalDistortion of harmonic: 0.11%(400Hz input ) Cartridge suitability: MM (Moving Magnet) cartridge Supply voltage : AC110-240V 50/60Hz switch power supply Size Dimension: 17*20*13 CM (W*D*H) Weight: 7 lbs.

Hello To All, Gently Used YAQIN Tube PRE AMP In Fine Working Condition. Low Noise. Hum and Distortion. Output Voltage 500mv (1khz) Input Voltage 100-240v. Can Be Used with Intergrated Amplifier which Has a Volume Control. Any Questions Please Ask. Thank You, Have Fun and Happy Hunting. !!

Hello To All, YAQIN Tube PRE AMP In FIne Used Working Condition. /// WILL UPDATE //// Any Questions Please Ask. Thank You, Have Fun and Happy Hunting. !!

Yaqin MS-23B Tube Phono Pre Amp Perfect Condition With 12AX7 Sylvania Tube. Tube 12AX7 Sylvania (Label BALDWIN) , Same Date , Tested , Matched , Balanced. I used it for about 1,5 months with a line stage amp while my main tube pre-amp with phono stage was being repair. Tube Test Results: Bogey (100%) Ia=1,2 Gm=1,6 Tube #1 Triod 1 Ia=1,1 Gm=1,8 Triod 2 Ia=1,1 Gm=1,9 Tube #2 Triod 1 Ia=1,2 Gm=2.0 Triod 2 Ia=1.1 Gm=1.9

YAQIN MS-23B Hifi Tube Phono Amplifier 12AX7 Preamplifier Preamp Tube Amplifier. On Jun-20-23 at 18:31:09 PDT, seller added the following information: Item does not include box tubes or power cord On Jun-20-23 at 18:46:39 PDT, seller added the following information: The amp does not have box tubes it just the amp and power cord

YAQIN MS-23B Tube Phono Amplifier in excellent condition. Comes with power cord and two 12ax7 tubes (one Chinese and one Russian Ruby tube). No hum and sounds great. Please contact me with any questions.

Yaqin MS-23B in very good condition and fully working. I have upgraded the valves to Gold Lion ones which were recommended for their airiness and great soundstage - they are a massive improvement over the supplied ones. The originals will also be included in case you wish to compare or switch them around. I havent used this much as I bought it just before moving house - this is evident from the condition. It will be packed in its original packaging and sent by Parcel Force 48. Please note this is a UK-only sale and I am including Free P&P

For sale is a YAQIN MS-23B Phono Pre-Amp with Lesbox Mod. The Lesbox Mod involves converting the circuitry from the feedback arrangement used by Yaqin (called a Yin Yang circuit) to a straight filter technique using a 3rd tube. BUILD LOG AT BOTTOM OF THIS DESCRIPTION I finished the modification and it sounded great, but it turns out that Im not a fan of tubes in my preamp; so I put it in storage for a couple months. Upon taking it out storage, the left channel is weaker than the right. Im not motivated enough to diagnose it. Therefore, its listed as not working and at a discounted price. I am including all of the original components and tubes, along with the original box and power cord. Due to nature of item, I am not accepting returns. Please visit this link for the full build log: https://www.google.com/url?q=http://g4cnh.com/public/Putting_%27Life%27_into_the_Yaqin_MS-22B.pdf&sa=U&ved=2ahUKEwjspJr43O7-AhXOnGoFHY24CXgQFnoECAcQAg&usg=AOvVaw1EtRV-V6FnUUaxNiQhx00o

YAQIN MS-23B Hifi Tube Phono Amplifier 12AX7 Preamplifier Preamp Tube Amplifier.

Yaqin MS-23B Tube Phono Pre Amp with stock tubes. No power cord included. Works great and and fullly functional except the power switch is stucked in the on position. it has to be unplugged manually from the wall socket. Sweet Tube Sound