MERGING ADA8V3P
MRP - Rs. 3,49,900
MERGING ADA8V3P: 8 mic/line inputs and 8 line outputs for HAPI Mk III, Dual Gain preamps, 139 dB line inputs, up to 384 kHz and DSD256. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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Mic preamp + ADC section
| Mic pre max. input (Mic+Pad / Mic / Mic Boost) | +24 dBu / +12 dBu / +0 dBu |
| Input impedance (differential, switchable per channel) | 3 kΩ / 10.4 kΩ |
| Frequency response +0/‑0.3 dB, fs 48 kHz | 9 Hz - 22 kHz |
| Frequency response +0/‑0.3 dB, fs 96 kHz | 9 Hz - 46 kHz |
| Frequency response +0/‑0.3 dB, fs 192 kHz | 11 Hz - 94 kHz |
| Dynamic range (A‑weighted, typ.), ref +12 dBu | 137 dB |
| Dynamic range Mic Boost (A‑weighted, typ.), ref 0 dBu | 128 dB |
| Gain range (software controlled) | 0 dB to +66 dB |
| THD+N pre + A/D (20 Hz - 20 kHz) at -2 dBFS | < -111 dB (0.00028 %) |
| Interchannel crosstalk at 1 kHz | < -130 dB |
| EIN at > 40 dB gain (150 Ω source, A‑weighted) | < -127 dBu |
| Common mode rejection (20 Hz - 20 kHz) | > 75 dB |
| Phantom power (switchable per channel) | +48 V |
| Polarity invert (switchable per channel) | Yes |
| Low cut filter (switchable per channel) | -12 dB/octave, 80 Hz |
Line input
| Max. line input for 0 dBFS | +24 dBu |
| Input impedance (differential) | 10.4 kΩ |
| Dynamic range (A‑weighted, typ.), ref +24 dBu | 139 dB |
| THD+N line + A/D (20 Hz - 20 kHz) at -2 dBFS | < -111 dB (0.00028 %) |
| Interchannel crosstalk at 1 kHz, typ. | < -135 dB |
| Sensitivity range for 0 dBFS (software controlled) | -42 dBu to +24 dBu |
| Gain step | 0.5 dB |
| Common mode rejection (20 Hz - 20 kHz) | > 75 dB |
| Connector | DB‑25 female, AES59 analogue pinout |
Line output section
| Max. output level for 0 dBFS (software switchable) | +24 dBu / +18 dBu, +0/‑0.5 dB |
| Frequency response +0/‑0.3 dB, fs 48 kHz | 0 Hz - 22 kHz |
| Frequency response +0/‑3 dB, fs 96 kHz | 0 Hz - 46 kHz |
| Frequency response +0/‑3 dB, fs 192 kHz | 0 Hz - 92 kHz |
| Output impedance (differential) | < 80 Ω |
| Dynamic range (A‑weighted, typ.) | 124 dB / 126 dB |
| THD+N (1 kHz) at 0 dBFS | < -117 dB (0.00014 %) |
| Interchannel crosstalk at 1 kHz | < -139 dB |
| Output trim / polarity | Per channel, 0.1 dB steps / yes |
| Roll‑off filters | Slow (default), sharp, apodizing, brickwall |
| Connector | DB‑25 female, AES59 analogue pinout |
Latencies
| Input latency, 44.1/48, 88.2/96, 176.4/192 kHz | 8 samples |
| Input latency, DXD/384 kHz | 10 samples |
| Output latency, slow roll‑off filter | 9 samples |
| Output latency, sharp roll‑off filter | 38 samples |
Card
| Channels | 8 mic/line inputs, 8 line outputs |
| Sample rates | 44.1 to 384 kHz, DXD; DSD64, DSD128, DSD256 |
| Host | MERGING HAPI Mk III (either of the 2 slots) |
| MERGING code | 700526 |
Product overview
The MERGING ADA8V3P is an 8-channel mic/line A/D and D/A card for the MERGING HAPI Mk III audio mainframe, Premium version: eight remote-controlled mic/line inputs and eight line outputs, with sample rates up to 352.8 kHz (DXD) and 384 kHz, plus DSD64, DSD128 and DSD256.
The ADA8V3P is a complex input and output card for HAPI Mk III. With eight inputs and eight outputs it offers two-way audio conversion, analogue to digital and digital to analogue, and its remote-controlled mic/line inputs feature the 3rd generation Dual Gain topology, inspired by the exceptional ANUBIS preamps, for the highest audio quality without compromise. With two cards, HAPI Mk III is configured for up to 16 analogue I/O channels. The Premium card has superior specifications, and each Premium card is measured for the highest specifications and smallest tolerances.
| Mic/line inputs and line outputs | 8 + 8 |
| Dynamic range, line inputs (A, typ.) | 139 dB |
| Preamp gain with Boost | 78 dB |
| Up to 384 kHz and DXD | DSD256 |
Key features
- 8 exceptionally transparent, Swiss designed preamplifiers plus 8 line outputs
- Dynamic range of 139 dB (A-weighted, typ.) on the line inputs
- Preamps offer up to 78 dB of gain (with Boost)
- Full remote access for all parameter changes
- Dynamic range of 126 dB (A-weighted, typ.) on the line outputs
- Phantom power, polarity invert, low cut and impedance switchable per channel
- Switch to line level per channel via the display or remotely in a web browser
- Auto-mute circuitry for 'no-pop' power cycling
- Digitally controlled output trims for line-up procedures
- 2 x 25-pin D-Sub connectors
- Sample rates up to 352.8 kHz (DXD) and 384 kHz, plus DSD64, DSD128 and DSD256
Dual Gain preamps
Each of the eight inputs takes microphones or line level sources: mic with pad (+24 dBu max.), mic (+12 dBu) or mic boost (0 dBu), with a software-controlled gain range of 0 to +66 dB in 0.5 dB steps, switchable 48 V phantom power, polarity invert, an 80 Hz low cut filter (-12 dB/octave) and 3 kΩ or 10.4 kΩ input impedance on every channel. The line inputs accept up to +24 dBu for 0 dBFS with a dynamic range of 139 dB (A-weighted, typ.).
Line outputs with trims and roll-off filters
The eight line outputs deliver a maximum level of +24 dBu or +18 dBu for 0 dBFS, selectable in software, with per-channel trims in 0.1 dB steps and polarity for line-up. Four roll-off filters are available: slow (default, with the lowest latency of 9 samples), sharp, apodizing and brickwall. Auto-mute circuitry prevents clicks and pops at power cycling.
Remote control
All parameters are accessible on the OLED display of HAPI Mk III or remotely in a web browser, and the inputs and outputs can be routed in blocks of 8 to any HAPI Mk III output or RAVENNA/AES67 network stream.
DXD and DSD
In DSD, the FPGA of the Premium card adds a sigma-delta modulator after the digital gain and low cut stage and delivers a 1-bit DSD output, for DSD64, DSD128 and DSD256 recording and playback. PCM sample rates reach 352.8 kHz (DXD) and 384 kHz.
In the box
- ADA8V3P extension card for HAPI Mk III
MERGING ADA8V3P: frequently asked questions
Which unit does the ADA8V3P fit?
It is an extension card for the MERGING HAPI Mk III audio mainframe and fits either of its two slots; standard and premium cards can be mixed in the same unit.
What is the difference between the ADA8V3S and the ADA8V3P?
The Standard ADA8V3S supports sample rates up to 192 kHz. The Premium ADA8V3P extends this to 384 kHz PCM, DXD and DSD up to DSD256, and every Premium card is individually tested and selected.
How do I connect microphones to the ADA8V3P?
The mic/line inputs and the line outputs each use a female DB-25 connector with the AES59 analogue pinout; a DB-25 to 8 XLR fan-out cable connects microphones or line sources.
Is HAPI Mk III included with the ADA8V3P?
No. The card is an option for HAPI Mk III and is ordered separately.
Where can I buy the MERGING ADA8V3P in India?
The MERGING ADA8V3P is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Studio recording with 8 mic inputs and monitoring
Music studios recording a band or ensemble.
Connections
| Connect | To |
|---|---|
| MIC / LINE IN (DB‑25) | 8 microphones via a DB‑25 to XLR fan‑out |
| LINE OUT (DB‑25) | Studio monitors and artist foldback |
| HAPI Mk III network port | Recording computer on the RAVENNA/AES67 network |
Setup
- Fit the card in a slot of HAPI Mk III.
- Connect the microphones and switch phantom power, impedance and low cut per channel.
- Route the inputs to a network stream and the line outputs to monitoring.
- Set the gains remotely in the web browser and record.
Tip: The line inputs reach 139 dB (A-weighted, typ.) dynamic range.
Workflow 2: 16 analogue I/O with two cards
Studios needing more analogue channels.
Connections
| Connect | To |
|---|---|
| Two cards | Both slots of HAPI Mk III |
| Inputs and outputs | 16 mic/line inputs and 16 line outputs |
Setup
- Fit one card in each slot.
- Route the 16 inputs to the network or to the AES/ADAT outputs.
- Route playback to the 16 line outputs.
- Save the set-up as a preset.
Tip: Standard and premium cards can be mixed in the same unit.
Workflow 3: Stand-alone AD/DA converter
Studios converting between analogue and digital equipment.
Connections
| Connect | To |
|---|---|
| Card inputs and outputs | Analogue sources and destinations |
| HAPI Mk III AES 1‑8 | Digital console or recorder |
Setup
- Select the clock source on the HAPI Mk III display.
- Route the A/D inputs to the AES outputs.
- Route the AES inputs to the D/A line outputs.
- Set the output level to +24 or +18 dBu.
Tip: No computer is needed: everything can be set from the front panel of HAPI Mk III.
Workflow 4: Line-up of the outputs
Engineers calibrating a monitoring system.
Connections
| Connect | To |
|---|---|
| LINE OUT | Active speakers or a monitor controller |
Setup
- Choose the maximum output level (+24 or +18 dBu).
- Trim each output in 0.1 dB steps on the Trim page.
- Set the polarity per channel where needed.
- Choose the roll-off filter.
Tip: The slow roll-off filter gives the lowest latency of 9 samples.
Workflow 5: DXD and DSD recording
Classical and audiophile recording engineers.
Connections
| Connect | To |
|---|---|
| MIC / LINE IN | Microphones via DB‑25 fan‑out |
| HAPI Mk III network port | Recording computer |
Setup
- Set HAPI Mk III to DXD (352.8 kHz) or a DSD rate.
- Set the preamp gains remotely.
- Record the eight inputs in DXD or DSD.
- Monitor through the line outputs.
Tip: DSD up to DSD256 needs premium cards.
Workflow 6: Fitting the ADA8V3P in HAPI Mk III
Owners adding or changing a card in HAPI Mk III.
Connections
| Connect | To |
|---|---|
| Card | Free slot at the rear of HAPI Mk III |
Setup
- Switch HAPI Mk III off and remove all cables, including the power cable.
- Remove the blind plate of the slot (2 screws, Phillips size 2).
- Slide the card in horizontally along its guides, without force.
- Fasten the 2 screws in the card's cover plate, reconnect and power on.
Tip: If needed, initialise the unit as described in the instructions received with the card.
