Heiserman Audio H251 Tube Microphone

Heiserman Audio

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Product Code: 3953
$5,699.00
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Built To Order

This item is built to order and may have a lead-time before shipping, but we will get it to you as quickly as possible. Go ahead and place your order and we will follow up with an ETA as soon as we have it. If you have a deadline then please contact us before placing the order so we can meet your expectations.

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The Heiserman Audio H251 Tube Microphone is a handbuilt recreation of the legendary AKG C12 microphone.

The Heiserman H251 is the newest model in the lineup. Great care was taken in every aspect of the engineering of this new historical recreation. Equipped with the incredible Generation-4 Heiserman Hk12 capsule, made with the same brass and acrylic chambered backplates and rich 6µm gold sputtered DuPont Mylar. The Hk12 capsule as well as all the hardware for this unit is machined by hand in North Carolina by two master machinists. Inside the unit, all the detail of the original 251 is recreated. From the amazing new production T14/1 transformer (engineered from a pristine vintage unit from 1961) to the acrylic circuit board and the full acrylic head assembly containing the original rotational pattern switch and full Ck12 saddle with felts and foam cushioning. Circuit components consist of Vishay and Takman Rex resistors, NOS polystyrene and PIO capacitors and the true to original design wet Tantalum output capacitor. Rounding out the microphone is an automotive grade painted finish using the original Siemens Grey color. All Heiserman H251 microphone systems ship with a custom bulletproof power supply with world switching, a 7.5 meter Sommer tube mic cable with custom 251 style connector and a rugged flight case. This “E” version of the mic uses a 6072 vacuum tube and the H251 comes with TAD Premium Highgrade unit installed. Each Heiserman H251 has a 3 year limited warranty.

Heiserman Audio H251 Tube Microphone Features

  • Polar Pattern: Cardioid, Omni, Figure-8
  • Capsule: Generation 4 Hk12 Brass and Acrylic Chambered
  • Tube: 6072 TAD Highgrade
  • Transformer: T14/1
  • Sensitivity: 17mV/Pa ± 1dB
  • THD @ 1Khz @ 1Pa: <0.3%
  • Impedance: 200 ohms / 50 Ohms (switchable via jumper links)
  • Frequency: 20 Hz - 20 kHz
  • SPL: 130 dB
  • Self Noise: 16dBA

Heiserman Audio H251 Tube Microphone Includes

  • Heiserman Audio H251 Tube Microphone
  • Power Supply
  • 7.5 Meter Sommer Tube Mic Cable
  • Rugged Flight Case
  • Manufacturer Warranty

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OVERSIZED & HEAVY

OVERSIZED & HEAVY!

This Oversized & Heavy special order item may require additional shipping and cannot be canceled or returned.

This is a special order item that is considered oversized and heavy by all shipping carriers and will most likely be delivered via a freight truck.

Due to the item’s size and weight, additional shipping may have to be collected and once ordered cannot be canceled or returned. We will contact you if the final shipping quote differs from the shipping estimate provided at checkout. This item will ship as quickly as possible but there may be a lead time.

Please contact us for further information or for a more detailed shipping timeframe and cost.

Qualifies for Free Shipping

FREE SHIPPING!

On Orders over $99 in Lower 48 States

Shipping is expensive thats why Front End Audio has made it easy for you to ship your orders for free. Qualified orders of $99 or more enjoy free shipping in the lower 48. It doesnt get much easier that that!

There are some exclusions so check out our Shipping Policy page in the Customer Service section at the bottom of the page.

Tax Free Shopping

TAX FREE SHOPPING

Enjoy Tax Free Shopping outside of SC.

If you are ordering from outside the state of South Carolina - congratulations! Front End Audio does not collect sales tax for purchases made outside of SC. In all other states, you are responsible for your own taxes.

Financing

Financing

Financing

Financing

LifeTime Support

LIFETIME SUPPORT

We stand behind our customers!

Plain and simple, if you purchased a products from Front End Audio then our staff will always be here to give you support. From techincal and application questions to good ol' advice, we have you covered.

30 Day Returns

30 DAY RETURNS

Hassle free returns, easy and convenient.

Our return policy is simple. If you don't like your item for any reason, contact us within 30 days of receipt and we will authorize you a return authorization number no questions asked! There are a few exclusion so check out our Returns Policy page located in the Customer Service section at the bottom of the page.

EASY FINANCING

EASY FINANCING

Easy and convenient financing designed for you!

We here at Front End Audio know exactly what it's like to be working with a budget while making gear purchases. Therefore we have been working to make a variety of attractive and convenient financing options available to you. Whether financing your gear is for business or pleasure, optional or a necessity, Front End Audio has a financing plan that will work with your needs. Simply checkout the Financing page located in the Resources section at the bottom of the page.

Free Shipping

FREE SHIPPING!

On Orders over $99 in Lower 48 States

Shipping is expensive thats why Front End Audio has made it easy for you to ship your orders for free. Qualified orders of $99 or more enjoy free shipping in the lower 48.! It doesnt get much easier that that!

There are some exclusions so check out our Shipping Policy page in the Customer Service section at the bottom of the page.

Special Order Item

SPECIAL ORDER ITEMS CANNOT BE CANCELLED OR RETURNED

Special Order items are typically ordered in directly from the manufacturer so there may be a lead time. Rest assured that we will ship this item as quickly as possible. If you have a deadline or timeframe questions then please contact us before placing the order so we can make sure that we can meet your expectations.

Digital Delivery

LICENSE WILL BE EMAILED WITHIN 24 HOURS

This product is delivered electronically within 24 hours. However, if you're ordering after 6PM EST weekdays or on weekends, we'll process your order the next business day.

When purchasing electronic licenses or software it is your responsibility to make sure that your computer system meets and or exceed the required specification to install, run and operate the software. Electronic licenses are not returnable for any reason.

Authorized Dealer

AUTHORIZED DEALER

Piece of mind, support beyond your purchase!

Front End Audio is an authorized dealer for all the product lines we sell. What that means for you is that anything purchased through Front End Audio is guaranteed 100% authentic gear and carries a full manufacturer’s warranty.

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