The INT-25 is an Integrated Amplifier by Pass Labs that delivers 25 watts x 2 channels into 8 ohms, in pure Class A. It was released in 2018. It is a 2-channel design using a Class A output stage. Speakers connect via Binding Post. Pass Labs INT-25 has an MSRP of 8360$.
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Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements.The Pass Labs INT-25 is rated at 25 watts RMS into 8-ohms.
Here are the main highlights of its performance specs:
How loud will 25 watts actually play in your room? →
Which speakers suit the Pass Labs INT-25?
25 W into 8 ohms.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
When pairing the Pass Labs INT-25 with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
What size of room is the Pass Labs INT-25 Amplifier good for?
An essential deciding factor is the size of the room in which you intend to employ the Pass Labs INT-25 amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:
| Listening Environment |
Suitability |
| Near-field | Good |
| Small Room | Good |
| Mid-size Room | Average |
| Large Room | Poor |
| Very Large Room | No way |
Inputs and Outputs
Besides the performance specs of the Pass Labs INT-25, the next important feature set that you have to evaluate is the input and output selections that it offers.
Pass Labs INT-25 has total of 3 Analog inputs .
Inputs
- Total Number of Analog Inputs: 3
Outputs
Bluetooth Connectivity
Pass Labs INT-25 doesn't have bluetooth connectivity feature. In order to stream your music via bluetooth, the easiest way is to connect an external bluetooth receiver to your Pass Labs INT-25. Two bluetooth receivers that we recommend are the
iFi Zen Blue V2 and the
Audioengine B1.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Phono Input
Pass Labs INT-25 doesn't have a phono input so in order to play your vinyl albums, Pass Labs INT-25 has to be paired with a Phono Preamp that is MM (Moving Magnet) or/and MC (Moving COil) depending on your cartridge type.
Pass Labs INT-25 External Dimensions and Weight
Pass Labs INT-25 has external dimensions of (H x W x D) 6 x 17 x 17-3/8 inch (152.4 x 431.8 x 441.3 mm ). The unit weighs
22.23 kg (49 lbs).
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the Pass Labs INT-25 is approximately 1905.5cm2 / 295.4inch2.
- Width: 431.8mm (17")
- Height: 152.4mm (6")
- Depth: 441.3mm (17-3/8")
- Weight: 22.23 kg (49 lbs)
- Base Surface Area: ~1905.5cm2 / 295.4inch2
- Volume: ~29.0 liter / 7.7 gallon
Available colors
Pass Labs INT-25 is available in Silver color options.
| General |
| Brand |
Pass Labs |
| Full Model Name |
Pass Labs INT-25 |
| Release Date |
2018 |
| Amplifier Type |
Integrated Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class A |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
25 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
N/A |
| Frequency Bandwidth |
|
| THD |
|
| Minimum Impedance |
|
| Signal to Noise Ratio |
N/A |
| Digital Music |
| Built-in DAC |
No |
| Bluetooth |
No |
| WiFi |
No |
| CONNECTIONS |
| Total Analog Inputs |
3 |
| Phono Input |
No |
| Headphone Output |
No |
| Removable Power Cord |
|
| Speaker Connectors |
Binding Post |
| Level Controls |
Volume in 1 dB steps over a 63 dB range |
| PHYSICAL SPECS |
| Height |
152.4mm (6") |
| Width |
431.8mm (17") |
| Depth |
441.3mm (17-3/8") |
| Weight |
22.23 kg (49 lbs) |
| Available Colors |
Silver |
| OTHER |
| Parts Warranty |
|
| Labor Warranty |
|
How much power does the Pass Labs INT-25 have?
The Pass Labs INT-25 delivers 25 watts x 2 channels into 8 ohms, in pure Class A.
Does the Pass Labs INT-25 use vacuum tubes?
No. The Pass Labs INT-25 is a solid-state amplifier - there are no vacuum tubes in it.
What amplifier class is the Pass Labs INT-25?
The Pass Labs INT-25 uses a Class A amplifier design. Class A keeps its output devices conducting at all times for the lowest possible distortion, at the cost of considerable heat and low efficiency.
Does the Pass Labs INT-25 have a built-in DAC?
No. The Pass Labs INT-25 has no built-in DAC, so a digital source such as a streamer or CD transport needs its own converter, or you connect it over analogue.
Can I connect a turntable to the Pass Labs INT-25?
No. The Pass Labs INT-25 has no phono input, so a turntable needs an external phono preamp (or a deck with one built in) before it can be connected.
Does the Pass Labs INT-25 have Bluetooth?
No. The Pass Labs INT-25 does not have Bluetooth built in; you would need an external Bluetooth receiver connected to one of its inputs.
Does the Pass Labs INT-25 have a headphone output?
No. The Pass Labs INT-25 does not have a headphone output, so headphone listening needs a separate headphone amplifier.
How much does the Pass Labs INT-25 cost?
The Pass Labs INT-25 has a manufacturer's list price (MSRP) of $8,360.
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