MD Community Page: Sony MDS-JA30ES

Sony MDS-JA30ES

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Picture	Name	Desc	Price	Connectors	Dimensions
(1533x501)	Sony MDS-JA30ES	High End MD Deck Intro: 9/1998 (? guess)	MSRP ¥120,000 Availability:	in: line, coax, optical x 2. out: line, optical, headphone	430x125x345mm, 9.3Kg
Features: ATRAC 4.5 (IC: CXD2537R). Very similar to Sony MDS-JA50ES (below), with these differences: 1) 20 bit delta-sigma A/D (vs. 24 bit in JA50ES), 2) includes newly developed S-TACT IC pulse generation section [for DAC], reducing digital and analog noise, 3) has only one R-core transformer (vs. 2 in the JA50ES). Remote: RM-D14M Links: Sony's Japanese Page for the unit. Sony Deutschland's JA30ES page. A user's review of the Sony MDS-JA30ES. User comments: In comparison to the JA50ES, the '50 seems to have far better construction and power supply. As a result, it has slightly better numbers in dynamic range (105dB vs 104dB) and S/N ratio (108dB vs 107dB). These numbers are for playing back, so the difference in A/D converters has no effect. Notice that JA50ES is really heavy (14.3kg vs 9.3kg for the '30). If you look and touch these units, you can feel the difference of materials. Specs: Dynamic range: 104dB. S/N (manual: >104dB, brochure: >107dB, German Stereo magazine: >112dB). Freq. resp: 5-20kHz +/-0.3dB. THD: brochure: <.002%, German Stereo magazine: <.0012/.0013 (L/R). Line in: 47 kOhm, 500mV rms (min: 125mV rms). Coax in: .5Vp-p +/-20%, 75 Ohms. Optical in: 660nm. Line out: 2Vrms@50 KOhms, impedence: 10 KOhms. Digital out: -18dBm, 660nm. Phones: 28mW, 32 Ohms. GaAlAs laser output: 780nm @ <44.6 micro watts (measured at 200mm for the object lens surface of the optical pick-up block with 7mm aperture). Reviews: User Manual: MDS-JA30ES Service Manual: MDS-JA30ES

Picture

Name

Desc

Price

Connectors

Dimensions

(1533x501)

Sony MDS-JA30ES

High End MD Deck
Intro: 9/1998 (? guess)

MSRP ¥120,000
Availability:

in: line, coax, optical x 2. out: line, optical, headphone

430x125x345mm, 9.3Kg

Features: ATRAC 4.5 (IC: CXD2537R). Very similar to Sony MDS-JA50ES (below), with these differences: 1) 20 bit delta-sigma A/D (vs. 24 bit in JA50ES), 2) includes newly developed S-TACT IC pulse generation section [for DAC], reducing digital and analog noise, 3) has only one R-core transformer (vs. 2 in the JA50ES). Remote: RM-D14M

Links: Sony's Japanese Page for the unit. Sony Deutschland's JA30ES page. A user's review of the Sony MDS-JA30ES.

User comments: In comparison to the JA50ES, the '50 seems to have far better construction and power supply. As a result, it has slightly better numbers in dynamic range (105dB vs 104dB) and S/N ratio (108dB vs 107dB). These numbers are for playing back, so the difference in A/D converters has no effect. Notice that JA50ES is really heavy (14.3kg vs 9.3kg for the '30). If you look and touch these units, you can feel the difference of materials.

Specs: Dynamic range: 104dB. S/N (manual: >104dB, brochure: >107dB, German Stereo magazine: >112dB). Freq. resp: 5-20kHz +/-0.3dB. THD: brochure: <.002%, German Stereo magazine: <.0012/.0013 (L/R). Line in: 47 kOhm, 500mV rms (min: 125mV rms). Coax in: .5Vp-p +/-20%, 75 Ohms. Optical in: 660nm. Line out: 2Vrms@50 KOhms, impedence: 10 KOhms. Digital out: -18dBm, 660nm. Phones: 28mW, 32 Ohms. GaAlAs laser output: 780nm @ <44.6 micro watts (measured at 200mm for the object lens surface of the optical pick-up block with 7mm aperture).

Reviews:

User Manual: MDS-JA30ES

Service Manual: MDS-JA30ES

Sony MDS-JA30ES

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