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Forty years ago, the Ohm F speaker was a game-changer; it still is

walshF med Forty years ago, the Ohm F speaker was a game changer; it still is

Ohm F A Game Changer

Lincoln Walsh died a year before his radically innovative speaker technology made its commercial debut in the Ohm Acoustics F in 1972. The speaker featured an omnidirectional Walsh driver that projected a massive stereo soundstage. At the time of its introduction the $900 per pair Ohm F was hailed as one of the greatest speakers of all time by the international press. It sounded like nothing else, and the single 12-inch, truncated cone driver produced bass, midrange and treble frequencies (37Hz to 17kHz). The driver had a titanium top section, aluminum midband and paper bottom, with a single voice-coil at the top of the driver. Even today, bona-fide full-frequency drivers like that are rare. The Ohm drivers and cabinets were made in Brooklyn.

According to Ohm’s President John Strohbeen, the early production Fs had “functionality issues.” “They needed 300 watts to get going, and 301 to blow them up,” Strohbeen said with a chuckle. Ohm couldn’t repair them, so they replaced broken drivers under warranty. The engineers kept redesigning the driver to improve reliability, but it was the introduction of ferrofluid-cooled voice coils that cured the F’s reliability woes.

Ohm F And Other Speakers

Unlike box speakers that project sound forward, the F radiated bass, midrange and treble frequencies in a full 360-degree pattern. The sound quality was so far ahead of what was available from conventional box speakers the F remained in production for 12 years, until 1984, but by that time the price had more than quadrupled to $3,995 per pair!

The Ohm Acoustics factory is still in Brooklyn, and still offers factory upgrades on the F speakers. That’s remarkable — how many companies do you know that still service 40-year-old products — but that’s what separates high-end audio from mainstream gear. Ohm currently offers a complete line of Walsh omni-directional speakers, with prices starting at $1,400 per pair. Ohm sells factory direct, with a very generous 120-day home trial period.

[Source : CNET]

6 comments

  1. Wavatar

    I’ve got a U.S Acoustics USB 2080 vehicle amplifier in your own home but I’m not sure things i can apply it.

    Could it be intended for Subs or can one use them my vehicle loudspeakers to ensure they are even louder?

    Particulars:

    * 80 w RMS x 2 at 4 ohms

    * 140 w RMS x 2 at 2 ohms

    * 280 w RMS x 1 bridged output at 4 ohms

    * 4-ohm stable in bridged mode

    * stereo system or bridged mono output

  2. Wavatar

    Okay, so I am thinking about purchasing subs in my 2007 Jeep Srt-8.

    To date I’ve a single key in mind:

    http://signature.crutchfield.com/s_065SPG552/Boston-Acoustics-SPG555-2.html?tp=111

    Although, there’s additionally a 4 Ohm version for the similar cost, What’s the difference?

    Also which kind of amplifier can you recommend for just two of those?

    I intend on getting it focused on Mono, however i want the two to bump pretty hard.

    Just how much do you consider all this would cost, plus installation costs?

    Thanks

  3. Wavatar

    Boston Acoustics G312-44 12″

    or

    Kicker 05S15L5-4

    15″ 1500W Dual 4-ohm Square Subwoofer

  4. Wavatar

    I simply got some 10″ JL Audio subs.

    The label around the back reads 10W1-8 that is 125 w and eight ohms.

    If this involves the amplifier what must i search for?

    Will I want something at approximately 250 w or a great deal more?

    Mono or 2 funnel?

  5. Wavatar

    ARC Audio KS 500.1 – ARC Audio 1 Funnel 600 Watt Amplifier

    They Are MY WOOFER SPECS

    Speakers

    Speaker Type Passive

    Speaker Diameter 12″

    Nominal (RMS) Output Energy 300 Watt

    Response Bandwidth 20 – 350 Hz

    Input Impedance 2/8 Ohm

    Connectivity Technology Wired

    Capabilities Dual voice coil

    Speakers Particulars

    Loudspeakers Incorporated Vehicle subwoofer driver – 12″ – 300 Watt – 20 – 350 Hz – 2/8 Ohm – wired

    Driver Particulars Vehicle subwoofer driver : 1 x subwoofer driver – 12″

    Miscellaneous

    Suggested Enclosures Sealed – 28.3 litres

    Cutout & Mounting Dimensions

    Diameter 11.one in

    Depth 7.2 in

    12″ Subwoofer. 300W RMS (600w max). Patented RadialVent cooling Four-layer dual 4-ohm voice coils. SureSet impedance selection. Inputs accept 8 AWG wire.

  6. Wavatar

    ARC Audio KS 500.1 – ARC Audio 1 Funnel 600 Watt Amplifier

    They Are MY WOOFER SPECS

    Speakers

    Speaker Type Passive

    Speaker Diameter 12″

    Nominal (RMS) Output Energy 300 Watt

    Response Bandwidth 20 – 350 Hz

    Input Impedance 2/8 Ohm

    Connectivity Technology Wired

    Capabilities Dual voice coil

    Speakers Particulars

    Loudspeakers Incorporated Vehicle subwoofer driver – 12″ – 300 Watt – 20 – 350 Hz – 2/8 Ohm – wired

    Driver Particulars Vehicle subwoofer driver : 1 x subwoofer driver – 12″

    Miscellaneous

    Suggested Enclosures Sealed – 28.3 litres

    Cutout & Mounting Dimensions

    Diameter 11.one in

    Depth 7.2 in

    12″ Subwoofer. 300W RMS (600w max). Patented RadialVent cooling Four-layer dual 4-ohm voice coils. SureSet impedance selection. Inputs accept 8 AWG wire.

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