I don't know about you, but I love pictures of the guts of audio equipment. Whether it's the complex inner workings of a reel to reel tape deck, or the look inside the design, layout and construction of an audio amp. I like to see how an audio component was built and what components went into it's design.
Here's a few pictures inside my Presonus Inspire recording interface:
[attach=1] [attach=2] [attach=3] [attach=4]
Technical Specifications:
Microphone Preamps 1-2
Microphone input XLR Female
Frequency Response (±0.5 dB) 10 Hz to 50 kHz
Instrument Input Impedance (Balanced) 500k Ohm
THD+N (unwtd, 1kHz @ +4 dBu Output, Unity Gain < 0.01%
Phantom Power (±2 VDC) +48 VDC
Instrument Input 1-2
Type 1/4" TS
Input Impedance 1 Mega Ohm
Line Inputs 3-4 (RCA)
Frequency Response (+0,- 0.5dB) 10Hz to 50kHz
Input Impedance (Balanced) 47.5 KOhm
Headphone Output
Type Mini TRS Active Stereo
Maximum Output 150 mW/CH @ 60 Ohm Load
Frequency Response (±1.0 dB) 20 Hz - 20kHz
Digital Audio
FireWire (IEEE 1394) Speed 400mbps
ADC Dynamic Range (Awtd, 48 kHz Sample Rate) 102 dB
DAC Dynamic Range (Awtd, 48 kHz Sample Rate) 108 dB
Bit Depth 24
Internal Sample Frequency Selections (kHz) 44.1, 48, 88.2, 96
Daisy-chain multiple Inspire 1394 4 units total, maximum of 16 input/output at 96kHz
Information from the Wolfson website on the WM8590 AD/DA chip:
"The WM8590 is a high performance, stereo audio codec with differential inputs and outputs. It is ideal for surround sound processing applications for home hi-fi, DVD-RW and other audio visual equipment. The stereo 24-bit multi-bit sigma delta ADC has programmable gain with limiting control. Digital audio output word lengths from 16-32 bits and sampling rates from 32kHz to 96kHz are supported. A stereo multi-bit sigma delta DAC is used with digital audio input word lengths from 16-32 bits and sampling rates from 32kHz to 192kHz."
Features
• Audio Performance
- 110dB SNR (‘A’ weighted @ 48kHz) DAC
- 102dB SNR (‘A’ weighted @ 48kHz) ADC
• DAC Sampling Frequency: 32kHz – 192kHz
• ADC Sampling Frequency: 32kHz – 96kHz
• Stereo ADC input analogue gain adjust from +24dB to –21dB in 0.5dB steps
• ADC digital gain from -21.5dB to -103dB in 0.5dB steps
• Programmable Limiter on ADC input.
• Stereo DAC with differential analogue line outputs.
• 3-Wire SPI Compatible Control Interface
• Master or Slave Clocking Mode
• Programmable Audio Data Interface Modes
- I2S, Left, Right Justified or DSP
- 16/20/24/32 bit Word Lengths
• 4.5V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation
• 28-lead SSOP Package
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