HARRISON Flex-10

Product overview

The HARRISON Flex-10 is a high-performance USB / ADAT desktop audio interface with HARRISON analog character: two HARRISON mic preamps with H-DRIVE transformer saturation, classic high-pass and low-pass filters, balanced inserts and authentic switchable VU meters.

The Flex-10 brings the golden era of music to your desktop. Two high-performance HARRISON preamps sit at the front end, each with signature H-DRIVE transformer saturation, so you get rich, musical character straight from the source and the unmistakable sound of a '70s HARRISON console. Dedicated mic and line inputs on every channel let you move between microphones, instruments, synths, drum machines and outboard gear without constantly repatching, while next-generation 32-bit / 192 kHz converters, 8 channels of ADAT I/O and MIDI I/O integrate it with your existing gear.

Key features

• 10-in / 12-out USB-C audio interface
• 32-bit / 192 kHz converters
• 2 HARRISON high-performance mic preamps with 48 V, -20 dB pad and polarity
• 2 Hi-Z instrument inputs and 2 line level inputs
• 2 H-DRIVE transformer circuits, switchable, with amber-to-red indicator
• Classic HARRISON high-pass and low-pass filters
• Balanced insert point per channel
• 2 main stereo outputs (MAIN L+R and ALT 3+4) with mute and LED meters
• Stereo analog VU meters, switchable to the ALT output
• Direct monitoring with MIX blend and STEREO mode
• 2 high-current headphone outputs with independent level
• ADAT I/O (8 channels) and MIDI I/O
• Class-compliant USB; HARRISON USB audio driver provided where needed

Classic HARRISON recording path

Each channel has a HARRISON mic preamp (63 dB gain range, -131 dBu EIN), a rear balanced line input, a front Hi-Z instrument input and a balanced insert point. The H-DRIVE control drives the signal into transformer saturation while the output level stays under control; its large lighted switch glows from amber (a small amount of transformer effect) to red (heavier effect). A 7-segment LED meter shows the input level on every channel.

Characterful HP + LP filters

Classic HARRISON high-pass (25 Hz - 3.15 kHz) and low-pass (160 Hz - 20 kHz) filters, derived from the original 32 Series consoles, provide immediate, intuitive tone shaping before the saturation stage: perfect for carving space around sources from the very first take.

Master section with VU meters

Large backlit analog VU meters with left and right trims monitor either the MAIN or ALT outputs. MAIN L+R feeds the control room speakers and ALT 3+4 a studio or booth system, each with level, LED meters and MUTE. Direct monitoring blends the input with the playback return from your recording software (the STEREO switch puts channel 1 left and channel 2 right), and two headphone outputs have their own levels, with HP2 switchable to ALT 3+4. The ADAT LOCK LED confirms a connected ADAT clock source.

Rear connections

Mic XLR and balanced TRS line inputs per channel, balanced TRS insert send and return, balanced TRS MAIN and ALT outputs, MIDI in and out on 3.5 mm TRS, optical ADAT in and out, USB-C and the 12 V DC inlet with power switch: everything stays connected in a rugged metal chassis built for years of creative work.

In the box

• Flex-10
• Separate power supply with cable
• Safety sheet

HARRISON Flex-10: frequently asked questions

Does the Flex-10 need a driver?

It is class-compliant, so computers with built-in USB audio support need no driver. Where a driver is needed, HARRISON provides a USB audio driver and control panel on harrisonaudio.com.

What does H-DRIVE do?

H-DRIVE is a transformer effect: turn the control to drive the signal into saturation and switch it in or out with the lighted switch, which glows from amber to red as the effect increases.

Can I connect outboard gear?

Yes. Each channel has a balanced insert point (TRS send and return) for a compressor, a HARRISON 500 Series module or any other processor; press INS to activate it.

Which sample rates are supported?

44.1, 48, 88.2, 96, 176.4 and 192 kHz.

Where can I buy the HARRISON Flex-10 in India?

The HARRISON Flex-10 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.

Workflow 1: Vocal recording with H-DRIVE

Singers and producers wanting console character on the way in.

Connections

Setup

1. Switch 48v on for a condenser microphone.
2. Set GAIN with the input meter.
3. Press IN on the filters and raise HP to remove rumble.
4. Add H-DRIVE to taste and record.

Tip: Watch the H-DRIVE switch: amber is subtle, red is heavier.

Workflow 2: Guitar or bass DI

Guitarists recording direct.

Connections

Setup

1. Plug into the front instrument input.
2. Set the gain.
3. Shape with HP and LP.
4. Monitor with MIX in direct monitoring.

Tip: Lower buffer sizes in your recording software reduce monitoring latency.

Workflow 3: Stereo recording

Recording a stereo pair of microphones or a keyboard.

Connections

Setup

1. Match the gains.
2. Press STEREO in direct monitoring.
3. Check the image on the VU meters.
4. Record both channels.

Tip: STEREO puts channel 1 left and channel 2 right in the main output.

Workflow 4: Outboard on the inserts

Adding a compressor or 500 Series module while tracking.

Connections

Setup

1. Connect send and return TRS cables.
2. Press INS on the channel.
3. Set the processor.
4. Record the processed signal.

Tip: Inserts are balanced.

Workflow 5: Expanding with ADAT

Larger sessions with an 8-channel ADAT preamp.

Connections

Setup

1. Connect the optical cables.
2. Set the clock source.
3. Check the ADAT LOCK LED.
4. Record up to 10 inputs.

Tip: ADAT LOCK blinks if the connection is lost.

Workflow 6: Two monitor systems and a headphone mix

Producers switching speakers and cueing a performer.

Connections

Setup

1. Set MAIN and ALT levels.
2. Use MUTE to switch speakers.
3. Switch HP2 to ALT 3+4 for a cue mix.
4. Send the VU meters to ALT when needed.

Tip: MIDI I/O connects synths and drum machines at the rear.