Audio Proz Service and Sales


NAD 4225

Audio Proz Inv #: 56140

Stereo FM/AM tuner. Mono/blend/search features. 14 channel presets. Slimline unit. NAD grey with digital display. Low hours use. Fully serviced/ calibrated. 9/10 condition.

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NAD 4155

Audio Proz Inv #: 58895

AM/FM Stereo Tuner. Mono, FM, mute, and FM NR defeat functions. Excellent calibration. 9/10 condition, tested well, very good condition.

$ 88  Contact Us  

NAD 4150 tuner

Audio Proz Inv #: 27067

unit has some problems, works acceptably.

$ 80  Contact Us  

NAD 4150

Audio Proz Inv #: 50223

FM tuner with five memory presets. Very good condition, professionally cleaned and serviced with FM alignment.

$ 80  Contact Us  

NAD 4150

Audio Proz Inv #: 71588

AM/FM Stereo tuner. Mono switch. FM muting. Output level - rear panel. Preset tuning. Brown/grey finish. Note: After period of time (1 HR+) tuner display numbers shut off - apparently in design. Serviced and complete. FM alignment calibration. Good condition. AM antenna has broken clip holder. Excellent tuner. Condition 9

$ 88  Contact Us  


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We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock. 

Customers outside of the US, please note that international shipping can be costly (US Post $16 minimum - up to 8oz or 226g). We are glad to combine orders to reduce shipping costs. Take a look at our shipping policies for more information and estimates of prices and shipping time.


NAD 402

Audio Proz Inv #: 58424

High quality basic tuner. Has been tested. 9/10 condition.

$ 88  Contact Us  

Marantz ST6000

Audio Proz Inv #: 62476

With Remote #RC6000 ST. Excellent performance, 2 antenna inputs. Brushed black aluminum faceplate, Digital display. #8 condition

$ 88  Contact Us  

Marantz ST-46

Audio Proz Inv #: 71897

AM-FM Stereo tuner. Digital display. 9+ station presets. Black face slim line. No remote. Original w/ box and packing. Condition 8

$ 50  Contact Us  

Marantz Model 105

Audio Proz Inv #: 61292

AM/FM Stereo Tuner. Stereo/mono switch, muting switch, nice blue dial illumination. Fully serviced, calibrated FM, and Power button has slightly different look than original. #8+ condition 

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Marantz 110

Audio Proz Inv #: 63224

Vintage Silver Face Analog AM FM tuner. Seper quality FM section ! Complete service and calibration excellent spec. New led dial lights, did not replace pointer bulb. READ CAREFULLY: Faceplate has been trimmed at top edge.  #8- condition

$ 128  Contact Us  

Marantz 10B FM Tuner

Audio Proz Inv #: 61510

Excellent condition in our opinion. All original vintage tubes are still in the machine. Excellent FM calibration and service done at Audio Pro, scope alignment for FM is on target. Scope brightness calibration for intensity is max. Scope visibility is very good and easily read but not bright. Basic service of cleaning all controls and switches done. Tube pins and sockets cleaned as necessary. Capacitor and power supply volts all are on spec. It has truly excellent internal cosmetics. It is odd that tubes have only modest use time. All performs well but scope display is weak but again, totally readable. Channel separation better than 40db THD is .2% or less. Unit was heat run for a day. The one problem the unit may have is possibly one of the FM vactrols sometimes is a little off spec by 1 or 2 db or so in level but channel balance is stable over long listening periods for certain. There is a S. S. number scratched into internal chassis top, above Marantz logo almost unnoticeable.

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We are a very different kind of shop. To help ensure a smoother experience please read our letter about our current shop policies.

We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock. 

Customers outside of the US, please note that international shipping can be costly (US Post $16 minimum - up to 8oz or 226g). We are glad to combine orders to reduce shipping costs. Take a look at our shipping policies for more information and estimates of prices and shipping time.


Luxman T-240

Audio Proz Inv #: 55219

Super tuner. 16 preset digital. Slim line silver. Channel separation, 50db. Stereo sensitivity is excellent. Nice look. A little wear around the edges, 8+ condition.

$ 140  Contact Us  

Luxman 5T50

Audio Proz Inv #: 70657

FM tuner. No AM by design. Unit has problem and can't align tuner correctly or assign memory. The Tuning Up Button has a double and triple press function when in manual mode. #8 Condition. 

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Lafayette LT-250A

Audio Proz Inv #: 44231

This is an excellent tube FM tuner remarkable for an older machine. Excellent FM stereo filter and alignment. Professionally cleaned, serviced, aligned and tested. Excellent #9 condition.

$ 200  Contact Us  

KLH T-101 Tuner

Audio Proz Inv #: 60015

Silver, slim. Analog dial. Super quality tuner. Best MPX converter. Excellent calibration. Matches KLH Amp AP#60012. Minor oxidation around edge. 8+/10 condition.

$ 110  Contact Us  

KLH Model Eighteen

Audio Proz Inv #: 57896

All transistor, FM multiplex tuner. 2 outputs. Mono/stereo, MX filter. Totally original. SN 049964. All parts low use. Switches cleaned. Later version, perfect original condition, low use time. From business owner's personal collection. Face has tiny minor scuffs. Case #9. Unit #9.

$ 150  Contact Us  

Kenwood KT-7300 AM-FM Stereo Tuner

Audio Proz Inv #: 62189

MPX Filter, Muting, Tested, cleaned controls, resoldered, FM alignment and fidelity. Great condition, with original box & packing, clean face date, meters, bulbs all working well, there is some very minor rust pitting on AM antennae bracket. #9

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We offer expert time-saving advice on repairing many types of home and studio equipment, as well as consulting for product and recording issues, at a fair and reasonable cost.  For complex matters, we sometimes must charge a small technical fee.  If we can help solve your repair problem or technical conundrum, give us a call.  (617)926-8020.


Kenwood KT-59

Audio Proz Inv #: 60501

Slimline, Blackface. Excellent tuner, All functions tested. Better than average tuner, #9 condition.

$ 66  Contact Us  

Kenwood KT-54

Audio Proz Inv #: 47788

FM/AM tuner with fourteen station preset memory. Signal level and FM tuner digital metering. Slimline design, black color, very good condition, professionally cleaned, serviced, and tested.

$ 80  Contact Us  

Kenwood KT-45

Audio Proz Inv #: 51792

AM/FM digital tuner, black slimline design. Excellent condition.

$ 66  Contact Us  

Kenwood KT 58

Audio Proz Inv #: 53296

Digital tuner. Matches KA 88 AMD

$ 48  Contact Us  

JVC T-G90 Digital Tuner

Audio Proz Inv #: 41037

Very high quality tuner, with excellent sonic quality and performance. Black face and all metal chassis. Features: 8 station preset/tuner/timer/sleep timer/switched outlets. One button has a tiny dent, but otherwise this tuner is in excellent #9/10 condition.

$ 110  Contact Us  

Hitachi FT-4400

Audio Proz Inv #: 51272

Silver face, slim line digital tuner. Digital display, six memory presets, excellent quality fidelity. Very good condition, some very light scratches on top of aluminum. Fully serviced, very good alignment, clean, new battery.

$ 110  Contact Us  


We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.


HH Scott Meter

Audio Proz Inv #: 53905

Tuner. H.H. Scott meter #M-55-3. Vintage meter for tube tuner, 2 1/2" square. 9 condition. 9 condition.

$ 32  Contact Us  

DYNATUNER model FM-1

Audio Proz Inv #: 62682

Tube Turner, gold style faceplate. Access to all alignment, Trimmers from bottom panel. 75/300 OHM FM Antenna. Has original dynaco tubes missing front end ECC85/6AQ8 * unit does power up*, *tubes look in decent condition, lettering not burnt*. #7 condition

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