Ohm H

The Ohm H was the very large bookshelf speaker most often used on the floor or short speaker stand. It had very deep bass from the 8” woofer and 12” passive radiator. It used two tweeters to reproduce the highs with an open, airy quality. It was designed for medium sized rooms and delivered extremely extended frequency response.

Purchase Options

Price

Order

Woofer

$225 ²

SBA

$140

Low Tweeter

$85

High Tweeter

$95 ¹

Grill

$115

Crossover

$179 ² ³

Passive Radiator

$145 ²

(1) With the return of the original part for recycling within 60 days.
(2) With the return of the original part for recycling before the shipment of the new part.
(3) Recycled repaired and tested.
(4) Per pair.
(5) Special shipping rate applies.

Ohm H Specifications

Production Period: late 1970s - mid 1980s
Nationally Advertised Price: $895 per pair
Amplifiers Recommended: 20 - 100W
Impedance (typical): 4Ω
Frequency Response: 32 - 20,000 Hz (+/-3dB)
Sensitivity @2.8 Volts: 88 dB
Recommended Room Sizes: 1600 - 3200 cu.ft.

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Upgrade Options
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The Ohm H was the very large bookshelf speaker most often used on the floor or short speaker stand. It had very deep bass from the 8” woofer and 12” passive radiator. It used two tweeters to reproduce the highs with an open, airy quality. It was designed for medium sized rooms and delivered extremely extended frequency response.
The OHM H can have tighter and deeper bass with the addition of a SubBass Activator (SBA) with our upgraded 8'' woofer and new 12'' passive radiator. The SBA eliminates the drive below the speaker's natural response to reduce distortion and clean up the deep bass. This allows for lower distortion, higher output, and deeper bass plus has a self-resetting protection circuit. The upgraded woofers have a new cone surround that is projected to last up to 30 years and the FerroFluid cooling handles the thermo transients from CDs. The 12'' passive radiator's new foam surround is also projected to last up to 30 years.
Note: Most Ohm upgrades require no specialized knowledge and are easily completed completed by any person. It takes less time to install your own upgrade than it does to package and return ship your speakers to the factory, therefore, we recommend you save time and money by doing this yourself. We ship the upgrade to your door with clear, easy instructions. If for any reason you prefer to have the factory complete your upgrade installation, we will be happy to do this for free, however, you will be responsible for shipping and handling costs each way.
Ohm allows up to $895 for the return of a complete pair of undamaged Ohm H's toward 25% of the purchase price of new Ohm speakers.

Ohm H

Ohm H Specifications

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Purchase Options	Price	Order
Woofer The woofer is generally the largest driver in the system which covers the bass and mid-range frequency.	$225 ²
SBA The SubBass Activator is an electrical circuit which extends the deepest bass when the music calls for it, reduces the distortion for cleaner sound, increases the dynamic range for greater impact, and uses a self-resetting protection circuit to reduce the chance of damaging the speakers.	$140
Low Tweeter The low tweeter is generally the midsize driver in the system which covers the upper mid-range and low treble	$85
High Tweeter The high tweeter is generally the smallest driver in the system which covers the highest frequencies.	$95 ¹
Grill The grill is the cloth and frame used to cosmetically conceal the drivers without affecting the sound. Ohm now uses black grills in almost all cases. In the past, brown and brown/black mixes were used; but every ”brown” turned out differently. Now they are all black.	$115
Crossover The crossover is the electrical circuit that protects the tweeters from the low frequency energy that is reproduced by the main drivers. This can only fail, in rare instances, from overdriving the speakers.	$179 ² ³
Passive Radiator The passive radiator looks like a large woofer from the outside. It produces the deepest octave of sound and has no magnet or motor assembly. The air inside the cabinet acts like a spring with the woofer driving one end and the passive radiator (PR) at the other. At the low frequency where the spring and the PR resonate, extra energy comes out of the system. Typically, the foam edge deteriorates within 20 years. We now use a new foam edge that is projected to last up to 30 years.	$145 ²
(1) With the return of the original part for recycling within 60 days. (2) With the return of the original part for recycling before the shipment of the new part. (3) Recycled repaired and tested. (4) Per pair. (5) Special shipping rate applies.