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{"id":1721593954355,"title":"Heritage Audio 73 '73 JR 500 Series Mic Preamp Microphone Pre Studio HA73JR","handle":"new-heritage-audio-73-73-jr-500-series-mic-preamp-microphone-pre-studio","description":"\u003cdiv class=\"row-fluid section\" id=\"description-section\"\u003e\n\u003cdiv id=\"description\"\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e\u003cstrong\u003eHeritage Audio '73 Junior Microphone Preamp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cstrong\u003e'73 JR OVERVIEW\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003eThe mic pre you've been dreaming about, at a price you never imagined possible.\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003eThe '73 Jr is a chip off the old block, raised on Carnhill transformers and hand wired with care, it delivers the same massive tone as the 1073-500, in single 500 series space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e'73 JR FEATURES\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e- 80dB Class A Microphone preamplifier, HI-LO selectable minimum input impedance, balanced and floating. High gain positions show a higher impedance, ideal for old ribbon mics.\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- 50Db Class A Line preamplifier, bridging input impedance, balanced and floating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- All discrete Class A Ultra High Impedance J-Fet Direct Input on a high quality Neutrik Jack. The DI circuit is ahead of the Mic Input transformer, so the transformer is ON when in DI mode. DI is automatically switched on when inserting a jack.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Class A single ended, 2N3055 driven, high headroom output stage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- PAD: 20dB Mic input attenuation ahead of the input transformer to avoid overloading it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- HI PASS FILTER: Active all discrete Class A 3rd order Bessel, 80Hz Hi Pass Filter. 18dB\/octave slope.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- OUTPUT control to allow overloading of the preamp.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Internal slow turn-on +24v power supply for lower inrush current, which improves your lunchbox performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Carnhill Input and Output transformers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- 3 gain stage, genuine  modular card construction. All active circuitry is on pluggable cards for easier service.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Marconi style knobs and vintage style engraved pushbuttons.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e'73 JR SPECIFICATIONS\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is Carnhill transformer balanced and floating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Line input impedance: 10K Ohms bridging, Carnhill transformer balanced and floating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- DI input impedance: Greater than 2 Megohms, unbalanced.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Output impedance: Less than 75 Ohms, Carnhill transformer balanced and floating, to drive a load of 600 ohms (factory terminated).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Maximum output: Greater than +26dBm into 600 ohms.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- THD: Less than 0.025% at 1 Khz, less than 0.05% at 100Hz.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Frequency response: 20Hz ( +0.3dB ) to 20Khz (-0.2dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Maximum gain: Slightly greater than 80dB\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Noise: Less than -100dBm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e- Power consumption: 88 mA per rail @+-16VDC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","published_at":"2019-02-22T03:00:01-05:00","created_at":"2019-02-22T03:00:04-05:00","vendor":"Heritage Audio","type":"Studio Hardware","tags":["finance24"],"price":89900,"price_min":89900,"price_max":89900,"available":true,"price_varies":false,"compare_at_price":99900,"compare_at_price_min":99900,"compare_at_price_max":99900,"compare_at_price_varies":false,"variants":[{"id":16229979848755,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"HA73JR","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Heritage Audio 73 '73 JR 500 Series Mic Preamp Microphone Pre Studio HA73JR","public_title":null,"options":["Default Title"],"price":89900,"weight":1814,"compare_at_price":99900,"inventory_management":"shopify","barcode":"639713908244"}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/0068\/8871\/8387\/products\/57_fae7b2b7-78a7-4a92-be4d-1abda8f22fb5.jpg?v=1572421690","\/\/cdn.shopify.com\/s\/files\/1\/0068\/8871\/8387\/products\/57_ed88b423-9302-4e95-8a6c-d92749a58eae.jpg?v=1572421690"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/8871\/8387\/products\/57_fae7b2b7-78a7-4a92-be4d-1abda8f22fb5.jpg?v=1572421690","options":["Title"],"media":[{"alt":null,"id":2346128244787,"position":1,"preview_image":{"aspect_ratio":1.501,"height":1066,"width":1600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0068\/8871\/8387\/products\/57_fae7b2b7-78a7-4a92-be4d-1abda8f22fb5.jpg?v=1569405311"},"aspect_ratio":1.501,"height":1066,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0068\/8871\/8387\/products\/57_fae7b2b7-78a7-4a92-be4d-1abda8f22fb5.jpg?v=1569405311","width":1600},{"alt":null,"id":2346128277555,"position":2,"preview_image":{"aspect_ratio":1.501,"height":1066,"width":1600,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0068\/8871\/8387\/products\/57_ed88b423-9302-4e95-8a6c-d92749a58eae.jpg?v=1569405311"},"aspect_ratio":1.501,"height":1066,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0068\/8871\/8387\/products\/57_ed88b423-9302-4e95-8a6c-d92749a58eae.jpg?v=1569405311","width":1600}],"content":"\u003cdiv class=\"row-fluid section\" id=\"description-section\"\u003e\n\u003cdiv id=\"description\"\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e\u003cstrong\u003eHeritage Audio '73 Junior Microphone Preamp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cstrong\u003e'73 JR OVERVIEW\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003eThe mic pre you've been dreaming about, at a price you never imagined possible.\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003eThe '73 Jr is a chip off the old block, raised on Carnhill transformers and hand wired with care, it delivers the same massive tone as the 1073-500, in single 500 series space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e'73 JR FEATURES\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e- 80dB Class A Microphone preamplifier, HI-LO selectable minimum input impedance, balanced and floating. High gain positions show a higher impedance, ideal for old ribbon mics.\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- 50Db Class A Line preamplifier, bridging input impedance, balanced and floating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- All discrete Class A Ultra High Impedance J-Fet Direct Input on a high quality Neutrik Jack. The DI circuit is ahead of the Mic Input transformer, so the transformer is ON when in DI mode. DI is automatically switched on when inserting a jack.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Class A single ended, 2N3055 driven, high headroom output stage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- PAD: 20dB Mic input attenuation ahead of the input transformer to avoid overloading it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- HI PASS FILTER: Active all discrete Class A 3rd order Bessel, 80Hz Hi Pass Filter. 18dB\/octave slope.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- OUTPUT control to allow overloading of the preamp.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Internal slow turn-on +24v power supply for lower inrush current, which improves your lunchbox performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Carnhill Input and Output transformers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- 3 gain stage, genuine  modular card construction. All active circuitry is on pluggable cards for easier service.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Marconi style knobs and vintage style engraved pushbuttons.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e'73 JR SPECIFICATIONS\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is Carnhill transformer balanced and floating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Line input impedance: 10K Ohms bridging, Carnhill transformer balanced and floating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- DI input impedance: Greater than 2 Megohms, unbalanced.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Output impedance: Less than 75 Ohms, Carnhill transformer balanced and floating, to drive a load of 600 ohms (factory terminated).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Maximum output: Greater than +26dBm into 600 ohms.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- THD: Less than 0.025% at 1 Khz, less than 0.05% at 100Hz.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Frequency response: 20Hz ( +0.3dB ) to 20Khz (-0.2dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Maximum gain: Slightly greater than 80dB\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\" style=\"font-family: Georgia;\"\u003e\u003cspan style=\"line-height: 36px;\"\u003e- Noise: Less than -100dBm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e- Power consumption: 88 mA per rail @+-16VDC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e"}

Heritage Audio 73 '73 JR 500 Series Mic Preamp Microphone Pre Studio HA73JR

$899.00 $999.00
Maximum quantity available reached.

0% interest for 24 months, 24 equal monthly payments;
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Product Description

Heritage Audio '73 Junior Microphone Preamp

'73 JR OVERVIEW

The mic pre you've been dreaming about, at a price you never imagined possible.

The '73 Jr is a chip off the old block, raised on Carnhill transformers and hand wired with care, it delivers the same massive tone as the 1073-500, in single 500 series space.

'73 JR FEATURES

- 80dB Class A Microphone preamplifier, HI-LO selectable minimum input impedance, balanced and floating. High gain positions show a higher impedance, ideal for old ribbon mics.

- 50Db Class A Line preamplifier, bridging input impedance, balanced and floating.

- All discrete Class A Ultra High Impedance J-Fet Direct Input on a high quality Neutrik Jack. The DI circuit is ahead of the Mic Input transformer, so the transformer is ON when in DI mode. DI is automatically switched on when inserting a jack.

- Class A single ended, 2N3055 driven, high headroom output stage.

- PAD: 20dB Mic input attenuation ahead of the input transformer to avoid overloading it.

- HI PASS FILTER: Active all discrete Class A 3rd order Bessel, 80Hz Hi Pass Filter. 18dB/octave slope.

- OUTPUT control to allow overloading of the preamp.

- Internal slow turn-on +24v power supply for lower inrush current, which improves your lunchbox performance.

- Carnhill Input and Output transformers.

- 3 gain stage, genuine  modular card construction. All active circuitry is on pluggable cards for easier service.

- Marconi style knobs and vintage style engraved pushbuttons.

 

'73 JR SPECIFICATIONS

 

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is Carnhill transformer balanced and floating.

- Line input impedance: 10K Ohms bridging, Carnhill transformer balanced and floating.

- DI input impedance: Greater than 2 Megohms, unbalanced.

- Output impedance: Less than 75 Ohms, Carnhill transformer balanced and floating, to drive a load of 600 ohms (factory terminated).

- Maximum output: Greater than +26dBm into 600 ohms.

- THD: Less than 0.025% at 1 Khz, less than 0.05% at 100Hz.

- Frequency response: 20Hz ( +0.3dB ) to 20Khz (-0.2dB)

- Maximum gain: Slightly greater than 80dB

- Noise: Less than -100dBm.

- Power consumption: 88 mA per rail @+-16VDC.