Sparkler Audio

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Only the simplest can accommodate the most complex                             

  Sparkler Audio  
Model S507: Compact Disc Player 
CD Transport with 16bit Non-oversampling DAC
S507t Transport         $1,290.00
S507v Voltage mode  $1,475.00
S507i Current mode   $1,575.00

Just in now!

S507 top loading mechanism-like analog players



Inheriting the sound quality of the model S303A "notebook CD Player", this new model also has a non-oversampling D/A converter built in at a minimal size, and is finished as an integrated CD player.


From our investigations, we successfully improved the technology to further reduce the noise level, enhancing the fine expressive power. S507 is compatible as a high-end CD transport, where two digital output types (S/PDIF, I2S) are supported: CD transport type (S507t) with or without built-in DAC. As for the built-in DAC models, there are two types of signal modes available: conventional voltage-mode (S507v) and a new approach current-mode (S507i). Once you listen to the sound quality of current-mode (S507i), you will never forget the sound quality!

How does the voltage-mode and the current-mode work?

By adopting superior current-mode signaling in exchanging audio signals, dramatic progress is made from the conventional audio system to significantly improve the purity of the sound quality.


[CD Player]  
Power Supply IEC 3 pin AC inlet, AC 110~120V or AC 220~240 (factory assembled)
Mechanism Top loading mechanism with non-mahnetic disc clamper
Disc Format CD-DA, CD-DA format CD-R/CD-RW, CD layer of SA-CD
(HD-CD format disc is not supported)
DAC Philips TDA1543, 16-bit non-oversampling DACRe-clock:Fully discrete analog oscillator (ultra-low jitter, ultra-low 1/f phase noise)

Crysatal Professional grade quartz crystal (frequency drift is less than 5..7ppm)
Output stage Fully discrete BJT current mirror amplifier
I/V conversion S/N ratio: 96dB (typ)
Digital Output 1: S/PDIF (coaxial) x1 (isolated ground), 75Ω, 0.5Vpp
2: I2S (BCLK/LRCK/DATA/GND) x1, 3.3V TTL compatible logic level,
     USB 'A' type connector.
Line output voltage-mode: Analog RCA pin jack (unbalanced) max - 2.2Vrms (0dB), L/R stereo x1
current-mode: unbalanced RCA pin jack 5.5mAp-p, able to connect to 0Ω devices

Display Large LCD character display with backlight
Operations front panel tact buttons, jog dial, remote controller
Playbacks stop, play/pause, prev/next (jog dial), direct skip, fast reverse/forward ,
playback (x10), timecode (elapsed/remain, track/disc), repeat (track/disc)
Size W100 x H45 x D200mm = MOLESKINE® pocket size
Weight 1.0kg
Accessories Remote controller
[Power Supply]
Power consumption less than 25W
External Power DC12V (100mA) for audio signal circuits
Size W100xH45xD200mm
Weight kg1.00 kg
Accessories power cable
Analog RCA pin jack (unbalanced) max 2.2VRMS (0dB), L/R stereo x1
Digital S/PDIF (coaxial) x1, 75Ω, 0.5VPP,TOSLINK (optical fiber) x1

Sparkler Audio  - model S304: nostalgia      $775.00

Broadcast FM/AM Tuner (analog tuned DSP radio)


In the quiet of  the evening, we sometimes look forward in listening to   voices from distant, far off places. We switch on the radio, turn the dial and tune in to our favorite broadcast. We have long been familiar with the analog tuning dial since the first crystal radio set was developed. With the addition of a DSP (digital signal processor) chip, analog tuned radios have been reborn with the model S304. Incredibly clear, distortion free, and high class listening have been achieved with the DSP and fully discrete buffered amplifier. The model S304 analog tuner supports both FM stereo and AM (MW) band frequencies that can be switched from the front panel.

Easy to operate.  The model S304 analog tuner consists of a round analog frequency display dial, tuning knob, FM/AM switch to select bands (overseas model uses a different dial) and a signal indicator light tuned (green), FM stereo (red).

Trend DSP radio with analog Tuning - Extraordinary high sensibility, clear, transparent and warm sound.

The Silicon Labs DSP chip receiver chip brings reduced interference and superior signal reception, increased signal sensitivity and reduced signal drift for unmatched sound quality in an analog tuner. The model S304 analog tuner also uses a transformer and discrete regulators. A non-switching power supply are used to reduce  internal noise. A discrete buffer amplifier for line output is used for incredible, warm, clear, and rich sound.

High sensitive AM(MW) - Receive middle-wave weak signals with clear sound.

To increase AM(MW) band sensitivity, the ferrite bar antenna can be set on the receiver. This antenna holder is adjustable with magnets (installed at the base of the wooden supports)

Supports any FM/AM bands from all over the world!


  • POWER SUPPLY: Worldwide, depend on market (IEC 3 pin AC inlet)
  • AC110-120V, AC220-240V (factory assembled)
  • POWER CONSUMPTION: less than 5W
  • FM ANTENNA: F-type connector (75Ω coaxial)
  • FM BAND: 87~108MHz (worldwide) 50/75μs de-emphasis, stereo
  • FM FEATURES: 2.2μV EMF (@S/N = 26dB), stereo S/N 50dB, AFC
  • AM ANTENNA: accessory ferrite bar antenna, optional loop antenna (180~450μH)
  • AM BAND:520~1710kHz (10kHz step, America)
  • AM FEATURES: 30μV EMF (@S/N = 26dB), AFC (automatic frequency control), No AM stereo supported.
  • INDICATORS: tuned (green), FM stereo (red)
  • LINE OUTPUT: RCA pin jack (unbalanced) x1, 1VRMS (16Ω load)
  • SIZE: W140 x H86 x D140mm
  • WEIGHT: 1.3kg (without power cable)
  • ACCESSORIES: AM(MW) band ferrite bar antenna, power cable for IEC 3 pin AC inlet, alternate fuse, user’s manual



Sparkler Audio  - model S503 "spiral" CD player/Transport  $1,750.00

No need to say anything more about S503..." ....

Another wonderful product by Mr Kazutoshi Tsukahara

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