November 2021

The November 2021 Online AND In-Person meeting notice

DATE: Saturday November 20, 2021 1:30 - 3:30pm Eastern  NOTE DATE & TIME !

PLACE: Kubotek USA, Marlborough MA and on ZOOM

FEATURED GUEST: Dr. Tetsuo Kubo & USA President Bob Bean  508-229-2020

Topic: How does Haniwa realize 3D Audio?

Make the output equal the input! This is the driving philosophy of Haniwa. The music output at the speaker should be the same as the input from the recorded media, whether from a CD player, turntable, or streaming file. Make the output equal to the input is quite simple from a philosophy standpoint, but impossible to achieve in typical component analog system and digital systems.

Haniwa has spent decades developing a music reproduction system that achieves this goal with precise timing, phase, and frequency control that we call Haniwa 3D Audio. We call it “3D Audio” because Haniwa recreates a precise 3D soundstage in your listening room so you can get as close as possible to the original performance.

Robert Bean, Haniwa Audio, said hopefully, we will see you on-line or in person. Our product designer, Dr. Kubo, will be ‘live’ on video from Japan, and I will be in Massachusetts. Building on our past two BAS meetings, we will highlight the phase coherent Haniwa speaker system. For this meeting, we will be discussing analog front ends and other new advancements from Haniwa – tone arm development and the CVC (Current-to-Voltage-Converter). The Haniwa CVC allows sub-ohm cartridges to work in any system by creating a current loop on the cartridge side and using an MM compatible voltage output on the phono preamp side. You have probably already seen the article in Stereophile reporting on this brand-new type of product::

The current loop interacts with the mechanical loop to produce a very stable tracking system. Dr. Kubo will be up and awake halfway around the globe to answer questions about his analog theories and the CVC from the group.

There is a further detailed technical explanation here:

Here are music samples you can listen to and/or download before the meeting.

These are high resolution 24/192 PCM WAV files.
They were digitized from LP's using Haniwa's Current Loop Cartridge (.2 ohm impedance) and CDV Current to Voltage converter at ~.5 grams of tracking.

The samples are clips from the following pieces:

1 BachOrgan_Sample.wav  339MB - to demonstrate bass reproduction at low frequencies

2_TheFirebird_Sample.wav  360MB - to demonstrate spatial and sound stage in a classical piece

3_DrumRecord_Sample.wav  196MB - to demonstrate coherency with close to ideal step and impulse response curves

4_JohnCougar_A_Sample.wav  594MB - to demonstrate more modern rock music reproduction

5_Waterboy_A1_Sample.wav  329MB - to demonstrate spatial and sound stage in a jazz piece

6_TheWeavers_B2_Sample.wav  514MB - to demonstrate spatial and sound stage in a folk piece

Refreshments will be available at 3:30 PM.

Directions to the Haniwa Showroom:

2 Mt Royal Ave  Suite 500
Marlborough, MA 01752

We recommend parking in the parking lot right next to Route 20 (on the side of the building with the ReMax sign).

Once in the building, when guests get off the elevator on the 5th floor, they should see Kubotek USA on the glass with the Haniwa logo below it. The doors will be open.

PLEASE NOTE Only vaccinated COVID persons are permitted and masks are recommended.

Join the Zoom Meeting

Ken Schwarz is inviting you to a scheduled Zoom meeting.

Time: Saturday November 20, 2021 from 1:30 - 3:30 PM Eastern (SUGGEST 1:15 PM )

Meeting ID: 894 1478 6087

Passcode: 989644

If you are using a computer and this is your first time with Zoom, give yourself at least 15-20 minutes prior to the meeting to set things up: you click on the link in the Zoom instructions below and will be guided to download the Zoom software, HERE:

You can use your computer’s audio if you have a headset attached, or you can dial-in for audio. If you have a smart phone or tablet and a good internet connection, then you should install the Zoom app for your device and connect using it.


The Boston Audio Society
PO BOX 260211
Boston MA 02126

problems? email Barry:

updated 11/12/21