Vintage Tube Amp

No mid-fi, no gimmicks, no junk. Each piece of equipment is cosmetically restored and fully tested in our well-equipped lab by an engineer with 30+ years of experience in the HiFi world. Through our sister company, which is an authorized dealer for McIntosh, Audio Research, Sonus Faber, ClearAudio, Project, and Sony ES, we have access to OEM parts, service, and support. Super cool and rare upgraded Dynakit ST-70 tube amplifier modified by Audio Research. What could be better than a well regarded ST-70 with a bit of love and magic from our favorite tube amp maker Audio Research. They made 3 versions of this unit over the years and this is the latest and greatest 3C version. Best of all it’s fitted with vintage GE tubes that tested really well on our modern and professional tube tester. Not sure how many pieces were actually modified, but I have not found many examples of this amp online. So it’s relatively rare. This one looks great and sounds amazing. It was tested in our lab and listening room and is working perfectly. Test Notes: Uses (3) 12AX7, (4) 6CG7, and (4) 6L6GC. 40W into 8 ohms with both channels driven. Set Bias to. 410V across 7.5ohm resistors as suggested in schematic. We have too many items for sale and it’s nearly impossible to keep track of offers outside of the official system. We accept trade-ins of equal or lesser value under certain conditions. Please visit our website to submit your gear for full consideration. We will only consider high-end equipment from mainstream manufacturers such as McIntosh, Mark Levinson, Audio Research, Krell, etc. And will typically pass on displays, projectors, receivers, dated surround processors, and mid-fi equipment of any type. We will offer a fair value for your equipment, but keep in mind we’re running a business and will need to be able to resell the equipment at a profit after investing a great deal of time and resources in testing, certifying, repairing, cleaning, and packaging the incoming equipment. SELL US YOUR GEAR (Working or Broken). Simply visit our website to submit your gear for full consideration. We are currently operating from our shop inside our dedicated building in Glen Rock, NJ. We have several well-equipped and dedicated listening areas, plus a dedicated listening studio with tons of equipment of all makes and models. We’re not a store, so please don’t make an appointment if you’re just curious as to how a speaker or piece of equipment sounds. In essence – no tire kickers please. This is super useful when purchasing large speakers or heavy amplifiers. It’s also great for ensuring your new turntable is setup correctly in its final resting place. Yes – Power Only. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “skyfiaudio” and is located in this country: US. This item can be shipped to United States, Canada.

• Brand: Audio Research
• Type: Tube Amplifier
• MPN: ST-70
• Model: ST-70
• Country/Region of Manufacture: United States

Audio Innovations Series 200 MKII Valve / Tube Vintage Stereo Power Amplifier. + A UK Mains Lead. As you can clearly see this Vintage Tube – Valve Power Amplifier is in Wonderful Used Condition Throughout. It is of course in full working condition throughout. Sound Quality is Fantastic!!!!!! A copy of its Original Instruction Manual should be Available for you to Download from the Internet if Required. A UK Mains Lead will of Course be Supplied with it for you. It will be VERY well wrapped & packed, it will arrive with you as shown on these pictures. Below Is A Question & Answer Section, This Will Hopefully Answer Most Customer Questions. A: We Are Dealers Of Quality & Vintage Hi-Fi Equipment & Similar Items. Q: Where Did You Get It From? Q: Has It Been Fully Tested? A: All Items That We List For Sale Have Been Fully Tested By Us. We Test Fully & Not Just Powering Items Up. Q: Will We Take A Offer On A Item. A: All Item Are Very Competitively Priced. We Normally Sell Under The Current Market Value. Will My Item Be Packed Well? Yes It Will, Please Check Our Feedback, You Can See That Our Customers Are Very Happy With Our Packing Etc. Q: How Long Will I Have To Wait For My Order To Arrive? A: We send Most Items On A 48hr Service. (Except On Bank Holiday Mondays). Q: Do You Provide Tracking Details? Q: My Tracking Details Do Not Work, Why? A: Once Your Order Has Been Collected Your Tracking Details Will Work. Normally After 7pm Onwards On The Day Of Collection From Us. A: No, This Is Not Possible. PLEASE DO NOT ASK! Q: Will You Send By A Cheap Non Signed For Courier? A: No, All Items Are Always Send Fully Signed For & Fully Trackable. Q: Will You Send Overseas? The item “Audio Innovations Series 200 MKII Valve / Tube Vintage Stereo Power Amplifier” is in sale since Thursday, July 8, 2021. This item is in the category “Sound & Vision\Home Audio & HiFi Separates\Amplifiers & Pre-Amps”. The seller is “theworldismyoyster11″ and is located in Great Yarmouth. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Egypt, Guernsey, Gibraltar, Guadeloupe, French guiana, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, Trinidad and tobago, Uruguay.

• Number of Channels: 2
• Audio Outputs: See The Close Up Pictures
• Model: Series 200 MKII
• Colour: As Shown
• Country/Region of Manufacture: United Kingdom
• Audio Inputs: See The Close Up Pictures
• Type: Power Amplifier
• Features: Analog
• Number of Outputs: See The Close Up Pictures
• MPN: Does Not Apply
• Number of Inputs: See The Close Up Pictures
• Brand: Audio Innovations
• Surround Sound Formats: Stereo
• Manufacturer Warranty: None

Audio Innovations Series 200 MKII Valve / Tube Vintage Stereo Power Amplifier. + A UK Mains Lead. As you can clearly see this Vintage Tube – Valve Power Amplifier is in Wonderful Used Condition Throughout. It is of course in full working condition throughout. Sound Quality is Fantastic!!!!!! A copy of its Original Instruction Manual should be Available for you to Download from the Internet if Required. A UK Mains Lead will of Course be Supplied with it for you. It will be VERY well wrapped & packed, it will arrive with you as shown on these pictures. Below Is A Question & Answer Section, This Will Hopefully Answer Most Customer Questions. A: We Are Dealers Of Quality & Vintage Hi-Fi Equipment & Similar Items. Q: Where Did You Get It From? Q: Has It Been Fully Tested? A: All Items That We List For Sale Have Been Fully Tested By Us. We Test Fully & Not Just Powering Items Up. Q: Will We Take A Offer On A Item. A: All Item Are Very Competitively Priced. We Normally Sell Under The Current Market Value. Will My Item Be Packed Well? Yes It Will, Please Check Our Feedback, You Can See That Our Customers Are Very Happy With Our Packing Etc. Q: How Long Will I Have To Wait For My Order To Arrive? A: We send Most Items On A 48hr Service. (Except On Bank Holiday Mondays). Q: Do You Provide Tracking Details? Q: My Tracking Details Do Not Work, Why? A: Once Your Order Has Been Collected Your Tracking Details Will Work. Normally After 7pm Onwards On The Day Of Collection From Us. A: No, This Is Not Possible. PLEASE DO NOT ASK! Q: Will You Send By A Cheap Non Signed For Courier? A: No, All Items Are Always Send Fully Signed For & Fully Trackable. Q: Will You Send Overseas? The item “Audio Innovations Series 200 MKII Valve / Tube Vintage Stereo Power Amplifier” is in sale since Friday, June 25, 2021. This item is in the category “Sound & Vision\Home Audio & HiFi Separates\Amplifiers & Pre-Amps”. The seller is “theworldismyoyster11″ and is located in Great Yarmouth. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Egypt, Guernsey, Gibraltar, Guadeloupe, French guiana, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, Trinidad and tobago, Uruguay.

• Number of Channels: 2
• Audio Outputs: See The Close Up Pictures
• Model: Series 200 MKII
• Colour: As Shown
• Country/Region of Manufacture: United Kingdom
• Audio Inputs: See The Close Up Pictures
• Type: Power Amplifier
• Features: Analog
• Number of Outputs: See The Close Up Pictures
• MPN: Does Not Apply
• Number of Inputs: See The Close Up Pictures
• Brand: Audio Innovations
• Surround Sound Formats: Stereo
• Manufacturer Warranty: None

Audio Innovations Series 200 MKII Valve / Tube Vintage Stereo Power Amplifier. + A UK Mains Lead. As you can clearly see this Vintage Tube – Valve Power Amplifier is in Wonderful Used Condition Throughout. It is of course in full working condition throughout. Sound Quality is Fantastic!!!!!! A copy of its Original Instruction Manual should be Available for you to Download from the Internet if Required. A UK Mains Lead will of Course be Supplied with it for you. It will be VERY well wrapped & packed, it will arrive with you as shown on these pictures. Below Is A Question & Answer Section, This Will Hopefully Answer Most Customer Questions. A: We Are Dealers Of Quality & Vintage Hi-Fi Equipment & Similar Items. Q: Where Did You Get It From? Q: Has It Been Fully Tested? A: All Items That We List For Sale Have Been Fully Tested By Us. We Test Fully & Not Just Powering Items Up. Q: Will We Take A Offer On A Item. A: All Item Are Very Competitively Priced. We Normally Sell Under The Current Market Value. Will My Item Be Packed Well? Yes It Will, Please Check Our Feedback, You Can See That Our Customers Are Very Happy With Our Packing Etc. Q: How Long Will I Have To Wait For My Order To Arrive? A: We send Most Items On A 48hr Service. (Except On Bank Holiday Mondays). Q: Do You Provide Tracking Details? Q: My Tracking Details Do Not Work, Why? A: Once Your Order Has Been Collected Your Tracking Details Will Work. Normally After 7pm Onwards On The Day Of Collection From Us. A: No, This Is Not Possible. PLEASE DO NOT ASK! Q: Will You Send By A Cheap Non Signed For Courier? A: No, All Items Are Always Send Fully Signed For & Fully Trackable. Q: Will You Send Overseas? The item “Audio Innovations Series 200 MKII Valve / Tube Vintage Stereo Power Amplifier” is in sale since Monday, June 14, 2021. This item is in the category “Sound & Vision\Home Audio & HiFi Separates\Amplifiers & Pre-Amps”. The seller is “theworldismyoyster11″ and is located in Great Yarmouth. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Egypt, Guernsey, Gibraltar, Guadeloupe, French guiana, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, Trinidad and tobago, Uruguay.

• Number of Channels: 2
• Audio Outputs: See The Close Up Pictures
• Model: Series 200 MKII
• Colour: As Shown
• Country/Region of Manufacture: United Kingdom
• Audio Inputs: See The Close Up Pictures
• Type: Power Amplifier
• Features: Analog
• Number of Outputs: See The Close Up Pictures
• MPN: Does Not Apply
• Number of Inputs: See The Close Up Pictures
• Brand: Audio Innovations
• Surround Sound Formats: Stereo
• Manufacturer Warranty: None

Sign up for our newsletter. Audio Research M-100 Vacuum Tube Monoblock Amplifiers – Vintage 6550 Audiophile. Here is a great pair of vacuum tube Monoblock amplifiers from Audio Research – the M-100. They have strong testing GE 6550 tubes installed and they keep their bias after warmup. They are in good cosmetic condition and work perfectly. The external securing ring for the operate/set bias switch on one amplifier is missing, but the switch feels very secure. All of the pre-owned items that we sell are thoroughly inspected and tested both on our test bench and in our listening room. Your satisfaction is guaranteed. Audio Research M-100 Vacuum Tube Monoblock Amplifiers. Single Loving Audiophile Owner / Non Smoker. Good – Minor Blemishes and Scratches, missing secure ring for one switch. 50 lbs x 2 Boxes. Our unique products, unparalleled service and “bombproof” packaging keeps our customers coming back again and again. We look forward to earning your repeat business! _gsrx_vers_856 GS 7.0.20 (856). The item “Audio Research M-100 Vacuum Tube Monoblock Amplifiers Vintage 6550 Audiophile” is in sale since Monday, October 28, 2019. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “highendaudioauctions” and is located in Brooklyn, New York. This item can be shipped worldwide.

• Brand: Audio Resarch
• MPN: Does Not Apply
• Model: M-100

Audio Guild Corp (Magnatone) Vintage Tube Amp Amplifier, 1970 Imperial. For most of the years since it has been idle at my parents home. Obviously, the desired guitar career didnt pan out. The condition is used and operational. I can provide additional pictures as needed. The black vinyl covering has been worn off or curled in some areas, mostly the corners. There is surface rust on some parts including the jacks and the handle brackets. The electrical power cord appears to be original and is twisted and melted in some areas. I assume the melting was due to contact with the hot tubes before I owned it. The interior circuitry portion of the amp has not been disassembled for inspection. The Imperial model nameplate is missing. The amp has a clean Dick Dale surfer sound when vibrato and reverb are used. Technical: Online sources suggest the amp is an Audio Guild Corp Imperial Model. Online sources suggest the amp is a 1970 production model. Utah 12 Speaker Codes: V12PXC2 328045 Power Transformer Codes: 1007 682 041 Output Transformer Codes: 1006 682 045 Serial Number: 4388. Tested Operational (Front): Channel 1: Jack, Volume, Bass, Treble, Vibrato Intensity & Speed, Reverb Duration. Channel 2: Jack, Volume, Tone, Vibrato Intensity & Speed, Reverb Duration. Tested Not Operational (Front): Anti-Hum Switch. Maybe it works, but I didnt detect any sound change in either position. Not Tested (Front): Dual Input Jack. Dual Channel Input Selector. Vibrato Reverb Remote Control Jack. Not Tested (Back): Switched 117 Volts 400 Watts Maximum Electrical Plug. Channel 1 In/Out Vibrato Reverb Switch. Channel 2 In/Out Vibrato Reverb Switch. Approximate Weight & Dimensions: Weight (bathroom scale, low accuracy): 45 lbf Height (with feet & handle): 25 inch Depth (with backplate): 10 inch Width: 21.5 inch. (2) After paying for the amp, I can deliver the amp to a packer & shipper of your choice in Fort Wayne, Indiana. The item “Audio Guild Corporation (Magnatone) Vintage Tube Amp Amplifier, 1970 Imperial” is in sale since Thursday, May 25, 2017. This item is in the category “Musical Instruments & Gear\Vintage Musical Instruments\Vintage Guitars & Basses\Guitar Amplifiers”. The seller is “gloot2000″ and is located in Fort Wayne, Indiana. This item can’t be shipped, the buyer must pick up the item.

• Brand: Audio Guild Corp
• Exact Year: 1970
• Model: Imperial
• Country/Region of Manufacture: United States