UK Vintage Radio Repair and Restoration Discussion Forum

UK Vintage Radio Repair and Restoration Discussion Forum (
-   Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players (
-   -   Akai 4000 Series / 4000DB (

Michael Kay 13th Nov 2019 9:07 pm

Akai 4000 Series / 4000DB

Can anyone tell me whether the Tape Selector switch on my Akai 4000DB affects playback, or is it just for record? It is hard to tell whether some tape is Low Noise or Wide Range and I'm assuming my old Grundig/BASF/EMI (shiny brown) tape is Low Noise and wondering if the back coated darker tape is Wide Range?

But if it doesn't affect playback, then it doesn't matter as much.


Ted Kendall 14th Nov 2019 1:03 am

Re: Akai 4000 Series / 4000DB
From the diagram, it appears that this is a record EQ tweak - I'm a little surprised because I always assumed it was bias. At all events, it doesn't affect playback.

Michael Kay 14th Nov 2019 11:10 am

Re: Akai 4000 Series / 4000DB
Thanks Ted for that.


paulsherwin 14th Nov 2019 12:13 pm

Re: Akai 4000 Series / 4000DB
It is there to support Japanese higher coercivity tapes like Maxell XL which were becoming available at the time, developed alongside cassette formulations. You should normally use the LN (low noise) setting for anything made before the mid 70s.

Michael Kay 14th Nov 2019 12:21 pm

Re: Akai 4000 Series / 4000DB
Thanks Paul. The recording of Grieg's Piano Concerto (Bavarian State Orchestra/Odd Gruner-Hegge) which I first recorded with the RCA leads and was clipping frequently throughout the digitising, which I did again yesterday using the new DIN output, resulted in a vastly better transfer, though the levels on the tape are essentially too high on the World Record Club original tape (up to a sustained +4dB for several seconds at times). I then decided to try this again today with it set to WR instead of the (expected) Low Noise which I used yesterday. I am thinking though that the off tape clipping is sounding less evident with the WR selection despite believing it to only affect record.

I shall try listening both transfers on my Hi-Fi and compare them!

paulsherwin 14th Nov 2019 12:27 pm

Re: Akai 4000 Series / 4000DB
There is certainly no harm in experimenting. Trust your ears!

All times are GMT +1. The time now is 7:15 pm.

Powered by vBulletin®
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Copyright ©2002 - 2020, Paul Stenning.