Sanyo JJ-P4

SANYO JJ-P4
Headphone Stereo Cassette Player
New Hard Conception

Smaller than a cassette case and light, 

We are happy to carry such technology with us.

Adopted a newly developed small model with a diameter of 23mm, the motor is the same size as a 10-yen coin. With A built-in rechargeable battery, this size is surprisingly light. It's so small and fashionable there is also progress in the body. The World's thinnest headphone Stereo is in the palm of your hand.

 

Even though it is a music mechanism that acts together, what is

required is to be as small and light as possible. Next, it has to be fashionable and It has to be cool because it can be seen by a lot of people. The new JJ-P4 is smaller than a cassette case (vertical x horizontal area ratio). Moreover, including the attached rechargeable battery built into the main body, it weighs about 163g. It is simple and lively even, as an Ace, it's not bulky in your pocket, and it's definitely fashionable even if he's out a little.

Main Features

Direct charge method that allows you to charge while listening while keeping the built-in rechargeable battery. It is a rechargeable type that is nice for those who can't let go of music even for a moment. The battery bill can be saved, and she seems to be saved. With the external charging method, you can charge the battery without removing the rechargeable battery from the main unit and setting it in the charger. Moreover, if you charge while listening to the cassette, you can also charge the spare rechargeable battery at the same time. If you connect the AC adapter that also serves as a charger to the main unit, you will be fine and fully charged. If you commute to work or school, and when you return from the outside, his standby for charging seems to be a daily routine.

High Efficiency

About 9 hours with a rechargeable battery and an alkaline battery. When a rechargeable battery and an AA alkaline battery are used together, the internal resistance of the battery decreases, and the battery life is extended by using them in parallel. This allows about 9 hours of mouth play. It is encouraging to have fun on the train for a short trip. Just by setting his small battery case for AA batteries, it is possible to play constantly thanks to the built-in rechargeable battery. Of course, you can enjoy it for about 2.5 hours with the built-in rechargeable battery (fully charged), and for about 5.5 hours with a single AA alkaline battery. It's okay to take them out more and more.

Smart and sophisticated

Fast forward on both front and back is OK with the fast forward button. Direct direction for constant operation. In the past, the rewind button was used to fast forward the tape, but now the complications are gone. Even during auto-reverse, the direct direction method is adopted, which allows you to press the FFWD button for fast forward and the REW button for rewind, regardless of the direction in which the tape travels. A nice feature that allows you to operate it securely even from your bag or pocket. It is a convenient auto-reverse mechanism that plays continuously.

JJ-P4 Promotional Poster

Hi-Quality Sound System

Since it is a double azimuth head, it pursues high sound quality. This is a small, high-performance audio system. Adopting a double azimuth head that faithfully reproduces the sound recorded on the tape and IC Dolby that suppresses noise, then adopting twin duct stereo earphones that extend the low-frequency reproduction, the possibility of using aluminum for the voice coil is a realization of a different sound than before.

....And beautifully Sexy

 In 1987 The JJ-P4 has won the Good Design Award In Japan.

 In the same year, the AIWA HS-PX10 won. GDA

 

Boxes & Accessories

Japanese Model

World Model

Sanyo JJ-P4 World Box (SS)

Sanyo JJ-P4 European Box (Z)

Catalogs, Brochures, etc.

 

Japanese Catalogs

Sanyo Japanese Catalog April 1987

 

Sanyo Japanese Catalog June 1987 

Sanyo Japanese Catalog Dec 1987 

Sanyo Japanese Catalog April 1988 

Sanyo Japanese Catalog August 1988 

World Catalog

 

Sanyo German General Catalog 1987/88

Technical Information

 

JJ-P4 Specifictions:

• Output Power: 3.5mW x 2 (Max.)
• TapeSpeed: 1-7/8 ips. ± 3%
• Wow & Flutter: 0.6%, RMS
• Frequency Response:
             Normal: 63Hz~ 10,000Hz (P/B Dolby OFF).
             Metal: 63Hz~ 12,000Hz (P/B Dolby OFF).
• Signal to Noise Ratio: More than 42dB.
• Crosstalk Track to Track: More than 50dB
• Channel Separation: More than 20dB
• Hum & Noise (at Vol. Min.) -70dB
• Terminal Impedance: Headphones 8~100Ω

• Power Source: DC: 1.5V
           Ni-cd battery: NB-450
           or (UM-3, HP 7, AA Cell, Mignonzelle, R 6) x 1

• Dimensions (Max.): 69.8(W) x 104.5(H) x 18.5(D)mm
• Weight (w/o batteries): 138g

Service Manual: Disassembly instructions and Bi-Azimuth Adjustment

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