USA,32-Bit,Digital,by,HP-A3,Amplifier,,Converter/Headphone,Fostex,家電&カメラ , 無線・トランシーバー , 無線機アクセサリ,/feverish486084.html,to,Fostex,Analog,22137円 USA,32-Bit,Digital,by,HP-A3,Amplifier,,Converter/Headphone,Fostex,家電&カメラ , 無線・トランシーバー , 無線機アクセサリ,/feverish486084.html,to,Fostex,Analog,22137円 販売実績No.1 Fostex HP-A3 32-Bit Digital to Analog by Headphone Amplifier Converter USA 22137円 Fostex HP-A3 32-Bit Digital to Analog Converter/Headphone Amplifier by Fostex USA 家電&カメラ 無線・トランシーバー 無線機アクセサリ 22137円 Fostex HP-A3 32-Bit Digital to Analog Converter/Headphone Amplifier by Fostex USA 家電&カメラ 無線・トランシーバー 無線機アクセサリ 販売実績No.1 Fostex HP-A3 32-Bit Digital to Analog by Headphone Amplifier Converter USA

販売実績No.1 Fostex HP-A3 32-Bit Digital to Analog by Headphone 結婚祝い Amplifier Converter USA

Fostex HP-A3 32-Bit Digital to Analog Converter/Headphone Amplifier by Fostex USA


Fostex HP-A3 32-Bit Digital to Analog Converter/Headphone Amplifier by Fostex USA


32bit D/A converter with USB bus power;Works with up to 24bit/96kHz audio source;High quality analog headphone amp to drive any type of headphones;USB/digital (optical) input selector; headphones/RCA (analog) output selector;Doubles as D/D converter from USB digital audio to optical

Fostex HP-A3 32-Bit Digital to Analog Converter/Headphone Amplifier by Fostex USA

When it comes to quality products I still remember the old "Made in Japan" logo. Try to find anything NOT made in China these days. Well, I found one - the Fostex HP-A3 DAC. My main reason for considering a DAC was to replace my computer's built-in sound card. At very high volumes I could detect 60 cycle hum, with a bit of static that would come and go -- like a bad connection. Using the output plugs at either end of the sound card offered no improvement. My only option was to bypass the built-in sound card entirely.Researching several DACs within my $350 price point, I kept coming back to the Fostex HP-A3. The HP-A3 implements the rare high-grade Japanese AKM AK4390 32-bit DAC chip, offering automatic up sampling of any USB audio signal to 96kHz, this is mirrored on the S/PDIF optical output.It is compatible with Windows XP (SP2 or later) / Vista / 7 / 8 / 8.1 / 10 and Mac OSX (10.6 or later). No software is needed. No drivers required. It is strictly a plug and play device right out of the box. Another advantage - its power is derived from the USB. No external power supply necessary. The 5 volts from the USB is more than ample to run the DAC and power its headphone jack. It was only required to change my default setting from sound card to Fostex, and select the bit/sample rates. Done! My computer Hi-Fi is now completely quiet at full volume. No background noise issues.The Fostex HP-A3 DAC is old school design, very 80s, with its angular casing and multiple buttons. In other words, it doesn’t fit in with modern aesthetics, which was probably a conscious choice from Fostex. But I like a few lights, buttons and a knob or two on my components. A lot of the latest DACs look positively barren and home built for lack of a gew-gaw or two.The Fostex HP-A3 features an optional S/PDIF digital output, which allows the unit to act as a digital to digital converter from USB to optical. The input and output routing is selectable by front panel buttons. In my situation it was only necessary to plug the included shielded USB cable into the DAC and the computer's USB.When ordering the unit I had little interest in its optional headphone jack. But now I find it gives me the option of not operating my pre-amp and amplifier just to get sound. My amplifiers are tube type and generate a lot of heat, pulling 100 watts of extra power as well. The DAC and headphone jack has great low bass. A portion of the sound spectrum I never heard or felt from the sound card.How does the Fostex HP-A3 sound? The greatest improvement was with my considerable archive of .mp4 files. They now sound as good as my CDs did. And my CDs are also much improved but with little to quantify them. A friend sent me a few test high-res master files, but the downloaded player brought malware along with it which set me back a couple days. That killed that experiment! But my CDs sound just as good as his few high-res master samples.Using my Sony MDR-6 Studio Monitor headphones, the sound stage is very wide. I have heard a few instruments sitting on my shoulder, or a tad behind it, if that is possible -- a sound stage effect not easy with "closed" headphones. My tube amps are now fed a clean, high quality input which only improves their performance as well.Overall, the Fostex HP-A3 is a very strong performer, backed with the Fostex brand and "Made in Japan" logo. You can't lose on that one! The sound is very clean with zero grain. The sound stage is wide and deep. Tonality very natural. The mids nice and full bodied. The tonal balance is quite similar to the DACport HD, except that the Fostex has a wider and deeper sound stage. The Fostex tonality nips at the heels of the Bryston BDA-1 DAC, a $2,000 gadget for sound quality. The sound of this DAC is very impressive. It is smooth and not sharp, harsh or digital sounding. For gaming with headphones my sound system is absolutely at another level now.Addendum:It is being used with a Hewlett Packard tower gaming PC with Windows 7, a SUCA AUDIO two-tube pre-amp, a Nobsound 6p1 7-tube amplifier; a pair of Fluance SX6, high efficiency bookshelf speakers and Sony MDR-6 Studio Monitor headphones.It has been five months since its purchase. The Fostex HP-A3 has been a rock solid performer, and I am delighted with my choice.
very much! had been using an audio engine amp but volume was a problem. (the fostex will play at deafening levels) HIGHLY recommended.
I shopped like crazy for this equipment. Searched the internet, read reviews, and always came back to the Fostex HP-A3 because it fit my needs perfectly and my pocketbook. I don't have much technical knowledge. I am not a pure audiophile. My musical taste covers just about everything from the classics, to opera, to rock, to easy listening, to pop, oldies, Etc. The Fostex replaced a $26 Behringer UCA 222 and my headphones from the Audio Technica HD50 to a Sennheiser 598, and this combo works perfectly for me. There is a newer model out for the Foxtex, but for another $100, it didn't ring my bell!
Upgraded to this from a Fiio e10k because I wanted something that could drive T60RPs, would highly recommend.

創造性の心理学 11|創造性のステージ理論|まとめ

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 ここまでは、創造性をある種の認知プロセスと考える研究について学習してきました。その中で出 …

創造性の心理学 11|創造性のステージ理論|まとめ もっと読む »

創造性の心理学 10|弁証法的創造

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 今回は、反対の視点(アンチテーゼ)を合成(シンセシス)することで創造するプロセスについて …

吸水速乾 マイクロファイバー フェイスタオル 2枚セット 【ドット/ストライプ】 30×80㎝ パープル MT30801-79

創造性の心理学 09|直観

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 今回は、洞察(Insight)とも関連が深い直観(Intuition)についてまとめてみ …

創造性の心理学 09|直観 もっと読む »

創造性の心理学 08|専門性が洞察を阻害する

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 今回は、経験や専門性と洞察の関係についてまとめてみます。 経験が洞察を阻害する 前回、「 …

創造性の心理学 08|専門性が洞察を阻害する もっと読む »

創造性の心理学 07|洞察とは何か?

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 次は、「再構築(リストラクチャリング)」の話だったのですが、中々まとまりませんでした。そ …

創造性の心理学 07|洞察とは何か? もっと読む »


こんにちは、やまもとです。 心理学系の論文を読んでいると、よくリッカート式のアンケート結果に対する因子分析の結果が掲載されています。因子分析には、探索的因子分析と確証的因子分析の2種類があります。探索的因子分析は、どのよ …

KF Concept ライトスタンド 2本 スタジオ 撮影スタンド 206cm 3段伸縮 雲台 三脚 LEDライト ストロボ ソフトボックス レフ板 など対応 HTC VIVE VR専用

創造性の心理学 06|独創性を生む論理的推論

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 書籍の中で、論理と創造性について軽く言及した部分があったので、論理についてまとめてみるこ …

創造性の心理学 06|独創性を生む論理的推論 もっと読む »

創造性の心理学 05|インキュベーションとインサイト

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 創造性のプロセスについては、こちらの記事でも書きましたが、Wallas(1926)の4ス …

創造性の心理学 05|インキュベーションとインサイト もっと読む »

創造性の心理学 04|問題解決・問題発見

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 創造性の研究は、問題解決の文脈で検証が行われることが多いです。例えば、答えが定まっていな …

創造性の心理学 04|問題解決・問題発見 もっと読む »

創造性の心理学 03|変革性

こんにちは、やまもとです。 創造性について、Runco教授がまとめた書籍「Creativity」を学習しつつ内容をまとめています。 前回は、創造性の連想理論とは異なる考え方である類推思考について学びました。類推思考とは、 …

創造性の心理学 03|変革性 もっと読む »