why no headphone jack

leftwinger57
leftwinger57 Posts: 2,917
edited February 2014 in 2 Channel Audio
Like the title says my Onkyo P-301 a very versatile pre/amp does not come w/ a headphone jack. It has every audio and video input and output you can need but no hp jack. Any logistical reson, any technical reason. I'd rather have that than the video cassette or video discs jacks right up front right. It has a great remote, motorized volume control and is dead quiet on the knobs and switches
2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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  • zingo
    zingo Posts: 11,258
    edited February 2014
    leftwinger57 wrote: »
    I'd rather have that than the video cassette or video discs jacks right up front right.

    You are out of luck there as that was the era, but they probably didn't see a need for a headphone jack from a marketing perspective; i.e. the target audience.
    Jake
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  • tonyb
    tonyb Posts: 32,963
    edited February 2014
    Why no bottle opener on the side either ? Only seems righteous.
    HT SYSTEM-
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  • cnh
    cnh Posts: 13,284
    edited February 2014
    Probably a "cost cutting" move? My P-304 has one. I've actually never used it, but I'm thinking it's got to be a decent option for a good set of cans.

    cnh
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • mhardy6647
    mhardy6647 Posts: 33,802
    edited February 2014
    cnh wrote: »
    Probably a "cost cutting" move? My P-304 has one. I've actually never used it, but I'm thinking it's got to be a decent option for a good set of cans.

    cnh
    Likely. Knowing nothing of the preamp in question, I'll (still) opine that headphones need drive, and they're usually low-impedance. The line-level outputs of a typical "pure play" preamp wouldn't be sufficient. At the least, a buffer stage would be required, if not (in essence) a small power amplifier. The (otherwise rather unremarkable) McIntosh C-28 preamp of the 1970s, for example, manages headphones with what is in essence a pretty good 15 watt per channel stereo power amplifier :-)

    One may see the output transistors for the headphone amp section in this topless photo of my C-28...

    C-28 innards.jpg


    (let's see if it actually inserts the image...)
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited February 2014
    Ok, but I don't have to like it. Doc Hardy I thought you were one of the Mac not for me types. Me a c-28 in a walnut cabinet w/ a Dual 1229 and a couple AR3a or Dahlquist D-10s and I'll be back in the den of the 70's. My little Lafayette amp sans tuner had a jack and I had a set of Super X headphones,the special see through model.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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  • mhardy6647
    mhardy6647 Posts: 33,802
    edited February 2014
    I am not a fan of any solid state Mac equipment I've heard -- or owned. I do own that C-28, and an MC-2100 - the former is OK, the latter is one of the harshest, grainiest and un-satisfying amplifiers I've ever heard (although its cousin the MC-250 is right up there, too). To be honest, I keep the Macs 'cause they're actually worth something (so I hold 'em as an investment of sorts; just in case, you know?).

    Now, an MC-225, MC-275, or a pair of MC-30s or MC-60s would be a different kettle of fish entirely... I cannot justify the purchase of any of 'em, though - and I, unfortunately, never found one at the dump in MA.
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  • Nightfall
    Nightfall Posts: 10,086
    edited February 2014
    Save cost. They'd have to have put in a headphone amp.
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.

    Village Idiot of Club Polk
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