GP-1000 / One place to start
Studio rendering
Studio renderingStart at the cartridge.
Give your turntable the gain and equalization it needs before the music reaches your amplifier.
- Turntable
- Phono stage
- Line input
Analog hi-fi electronics · built in the USA
Hear what your records
have been hiding
G Pulse Linear builds hand-made analog electronics for turntable systems: phono stages, preamplifiers, filters, and an ambience decoder that pulls the room out of an ordinary stereo recording.
Nine units. Every one 100% analog. Every one built by hand in the USA.
Three things your system can’t do yet
Nine units · $149 to $899
Pick the box that
fixes your problem
Each one does a single job properly. Most people need one.
Photo composite
Preamplifier
GP-2000
Control at the heart of your analog system.
Price$3,349.00
01 / 09
GP-2000 / GP-2000 Full Feature Audiophile Preamplifier
Independent front, rear and subwoofer control in one analog preamplifier.
- Channels
- Five
- Chassis
- 19-inch rack mount
- Connections
- Balanced XLR and RCA
- Tone controls
- Separate bass and treble for each channel, with dedicated turnover frequencies
GP-1000 / GP-1000 Audiophile Phono Preamplifier
Bring the phono stage to the turntable, with balanced and RCA outputs.
- Connections
- RCA input; RCA and balanced XLR outputs
- Gain
- Factory-configured
- Control
- Sealed level control
- Filtering
- Switched rumble and tonearm notch filter
GP-1001 / GP-1001 Audiophile Phono Preamplifier, RCA
The GP-1000 phono stage for systems that need RCA connections only.
- Output
- RCA only
- Control
- Level control
- Filtering
- Switched tonearm resonance and rumble filter
GP-3000 / GP-3000 Audiophile Source Controller and Sub-Sonic Signal Generator
Switch four line sources or Bluetooth 5.0 and create a dedicated subwoofer feed.
- Inputs
- Four stereo line sources + Bluetooth 5.0
- Gain
- Unity
- Switching
- Sealed replaceable relays
- Subwoofer
- Level and phase control
GP-LPSUB / GP-LPSUB Subwoofer Signal Generator
Create a subwoofer feed from an available line-level output.
- Low-pass filter
- Below 30 Hz
- DC
- Blocked
- Outputs
- Balanced XLR and RCA sub outputs
- Ground lift
- Included
GP-AMBDEC / GP-AMBDEC Audiophile Ambience Decoder
Recover rear-channel ambience from a stereo recording.
- Circuit
- Analog difference amplifier
- Input
- RCA line level
- Output
- RCA rear channel
- Control
- Rear level
GP-HP1002 / GP-HP1002 High-Pass Rumble and Tone-Arm Notch Filter
Add rumble and tonearm resonance filtering after your phono stage.
- Tonearm notch
- Switched tonearm resonance filtering
- High-pass filter
- Above 20 Hz
- Bypass
- Front-panel switch
GP-XLR2RCA / GP-XLR to RCA Audiophile Converter
Receive a balanced XLR signal into an RCA line input.
- Input
- Balanced XLR
- Output
- RCA
- Ground lift
- Included
GP-RCA2XLR / GP-RCA to XLR Audiophile Converter
Send an RCA source over a balanced XLR connection.
- Input
- RCA
- Output
- Balanced XLR
Find your starting point
What does your
system need?
You don’t need every component.
You need the right one.
GP-2000 / One place to startStudio rendering
Studio renderingPut your sources in reach.
Choose what plays, adjust the tone and bring your main, rear and subwoofer channels under one set of controls.
- Your sources
- Preamplifier
- Power amplifier
GP-HP1002 / One place to start
Studio rendering
Studio renderingAdd the piece you’re missing.
Tame turntable rumble, recover rear-channel ambience or connect RCA and XLR equipment. Choose the component for the job.
- Line-level signal
- Filter or converter
- Next component
Control that earns its place
Make your system
work together.
Choose your source. Shape the left and right channels independently. Adjust the subwoofer to your room.
The GP-2000 puts the controls you reach for in one place, with an analog signal path from input to output.
Illustrative engraving study
Take the controls / GP-2000
Your music.
Your controls.
Press play and explore the GP-2000’s front panel. Turn the knobs. Find your balance. Make the session yours.
Interactive browser illustration using the supplied music track. The physical source and loop selectors are shown for reference; hardware performance and five-channel playback are not simulated.
What you gain
Three things your system can’t do yet
-
Hear the room the record was made in
Recover the ambience already in your stereo recordings and hear it through two rear speakers.
GP-AMBDEC $679.00 -
Stop your woofers flapping
Filter unwanted low-frequency energy before it reaches your speakers.
GP-HP1002 $679.00 -
Put the turntable next to your chair
Keep your records within reach, with balanced connections back to your system.
GP-1000 $1,149.00
Follow the signal
Where does it fit?
From the first groove to the final connection.
03 / The filter
GP-HP1002
Addresses low-frequency rumble and tonearm resonance where a separate filter is needed.
- Receives
- Line-level audio
- Delivers
- Filtered line-level audio
Phono stage→Filter→Preamplifier
GP-1000 / In the numbers
Measured, not embellished.
Precision you can hear.
- Tonearm resonance notch
- 7Hz
- Patent-pending. The filter that stops the speaker damage.
- Signal to noise
- 89dB
- How far the music sits above the noise floor.
- Total harmonic distortion
- <0.02%
- Low added distortion through the phono stage.
- RIAA accuracy
- ±0.2dB
- Held over a hundred feet of balanced cable, not just on the bench.
Figures from the GP-1000 specification sheet. Performance and features vary by model.
Designed and built in the USA
Built by hand,
in the USA
Nine analog units, assembled and tested one at a time.
The workshop story is coming soon.
The people behind the circuit.
The workshop story is coming soon.
Before you connect
Good questions.
Clear answers.
A little clarity before you add anything to your system.
Do I need all of these?
No. Most people need one. Each unit does a single job. The right one depends on what you already own.
Explore the rangeWill it work with my cartridge?
The GP-2000 uses rear-panel switches to configure phono gain and cartridge loading. The GP-1000 uses factory-configured gain. Confirm the cartridge type, required gain and loading with the manufacturer before ordering or choosing switch settings.
Find the right starting point for your systemHow do I deal with a ground loop?
Start with the signal connections and grounding instructions for each unit. Selected G Pulse units offer a signal ground-lift switch; this is different from removing a mains safety earth. Tell the advisor which components are connected and where you hear the hum.
What if my amplifier has no tape loop?
The connection point depends on the unit and on the amplifier’s available inputs and outputs. Share the amplifier’s exact model and what you want to add so the signal path can be checked before you buy.
Can I add a subwoofer without a sub output?
The GP-LPSUB is a subwoofer signal generator. Whether it fits your setup depends on the signal outputs available from your system and the inputs on your subwoofer. It is not a speaker-level power amplifier.
What about shipping, warranty and returns?
Shipping, warranty and returns details will be published before orders open.
Contact G Pulse Linear
Still deciding
Not sure which one you need?
Tell us what you already own. We’ll tell you what’s missing, or that nothing is.
Find my setup