Because all tapes are not created equal.
You see, all tapes aren't created equal. All manufacturers' tapes require slightly different bias than the average 3-position setting for optimum performance, i.e., widest and flattest frequency response and lowest harmonic distortion. Even the same type of tape from the same manufacturer varies in its bias requirements. Batches differ. Processing has its ups and downs.
The newest, hottest audio tape is metal particle. It can give performance level equal to or better than open reel tapes. But, it's so new that bias standards aren't set. When they are, who's to say that the same manufacturer to manufacturer variability will not apply to the metal particle tape? That's why Onkyo invented automatic ACCU-BIAS.
Onkyo's automatic ACCU-BIAS uses logic circuitry centered around built-in reference generators to determine the optimal settings for bias for any tape you use... every time you use it.
And it's all automatic. With Onkyo's automatic ACCU-BIAS you just tell the logic circuits the kind of tape you're using... Metal, High or Normal. Push the automatic ACCU-BIAS but ton, engage play and record. Within seconds the automatic ACCU-BIAS computer determines and sets the exact bias, stops, rewinds and is ready for you to make a perfect recording.
That's not an average setting. Nor a compromise setting.
But the precise setting for any cassette you use every time you record. So, unless you want a factory technician to make your decisions for you, there's only one way to go.
Onkyo's TA-2080 with automatic ACCU-BIAS.
What kind of performance can you expect with ACCU-BIAS and metal particle tape? Frequency response of 20-20,000Hz.
And a S/N ratio of 62dB with Dolby* out.
Other features that add to the flexibility are 2 sendust alloy heads, plus a special laminated erase head for new metal tapes, feather touch solenoid transport, PLL DC servo motor drive, dual capstans, line mic mixer and 10 segmented peak level LED in columnar array between VU meters.
Another feature is the "Fadeout" which gradually erases portion of the tape during playback while you listen for those times when the tape runs out before the music...easing and simplifying editing chores.
Overall specifications and features make Onkyo's TA-2080 something special. Automatic ACCU-BIAS makes it even more. Check it out at your Onkyo dealer and see what it means by Onkyo's motto of being a step ahead of state-of-the-art.
*Dolby is a trademark of Dolby Laboratories, Inc.
(Audio magazine, Jun. 1979)
Also see:
Onkyo CP-1130F turntable (Dec. 1981)
Onkyo turntables (ad, Mar. 1979)
Optonica turntable (June 1977)
Onkyo Acculinear 18-bit CD player (Nov. 1988)
Kenwood KD-5070 turntable (Mar. 1979)
= = = =