Locomotive Audio 40AM-1
Locomotive Audio 40AM-1

Locomotive Audio

Locomotive Audio 40AM-1

€1.343,00

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SKU: 61005
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Locomotive Audio 40AM-1 is a single-channel tube preamp in a 500-series module built on octal tubes, combining the pentode input and triode output stage of the RCA BA-11A with the feedback topology of the Gates SA-70 console, both 1940s American broadcast designs. It's the single-channel counterpart to the two-channel 40AM-2 from the same octal Locomotive preamp family.

Octal tubes instead of a miniature 12AX7

Two 6SJ7 tubes (one strapped as a pentode on the input, the other as a triode on the output) deliver a maximum gain of 52dB and the heavy, dense character typical of American broadcast consoles from eighty years ago. MuMetal-shielded input transformers and nickel-and-steel output transformers, wound in-house at Locomotive, finish the signal path.

A 5-position Response switch instead of one fixed tone

A 5-position Response switch reshapes the circuit's tonal balance, and a 5-position input switch selects the transformer winding configuration for mic or line mode. A -20dB pad, an 85Hz high-pass filter, a high-impedance front-panel DI input and a 3-colour LED meter round out the control set packed into one 500-series slot. Octal tubes are less common in 500-series preamps today, which makes the 40AM-1 a distinctive pick for engineers specifically chasing that eighty-year-old heavy character, rather than another 12AX7-based replica.

KEY FEATURES

  • Single-channel octal tube preamp, 500-series format
  • Tubes: 2x 6SJ7 (pentode input, triode output)
  • Design combining the RCA BA-11A and Gates SA-70 (1940s USA)
  • 5-position Response switch
  • 5-position mic/line input switch
  • -20dB pad and 85Hz high-pass filter
  • High-impedance front-panel DI input
  • Hand-built in the USA

TECHNICAL SPECIFICATIONS

  • Type: single-channel octal tube preamp, 500-series
  • Tubes: 2x 6SJ7
  • Maximum gain: 52dB
  • Transformers: MuMetal input, nickel-and-steel output, in-house wound
  • Pad: -20dB
  • High-pass filter: 85Hz

Returns

We want you to be sure of your choice and that the goods fit 100%.

For this reason, you have 30 days to test the product, during which you can return it without giving a reason.

It is important to keep the factory appearance of the goods, consumer properties and full equipment (original packaging, labels, manuals, software CDs, all inserts, everything that was included in the delivery).

If you have decided to return the goods, please write to us at return@wiredtunes.pl, after which we will contact you and inform you about the next steps of the procedure.

Please note that refunds are not available for:

  • Cables and connectors
  • Software
  • Devices with a used voucher and serial numbers for which they were registered
  • Custom accessories (earbuds, earbuds)
  • Needles and cartridges
  • Care and hygiene products

Returns

We want you to be sure of your choice and that the goods fit 100%.

For this reason, you have 30 days to test the product, during which you can return it without giving a reason.

It is important to keep the factory appearance of the goods, consumer properties and full equipment (original packaging, labels, manuals, software CDs, all inserts, everything that was included in the delivery).

If you have decided to return the goods, please write to us at return@wiredtunes.pl, after which we will contact you and inform you about the next steps of the procedure.

Please note that refunds are not available for:

  • Cables and connectors
  • Software
  • Devices with a used voucher and serial numbers for which they were registered
  • Custom accessories (earbuds, earbuds)
  • Needles and cartridges
  • Care and hygiene products

Warranty

We care about our customers and carefully select the producers and products that we present in Wired Tunes, which is why we are sure of their quality. If the product does not meet our standards, you will not find our catalog on the list.

Our warranty is 36 months for all products and 60 months for ADAM Audio products.

Except for consumables, strings, tubes and crossfaders, and products showing signs of misuse.

In the event of damage, please contact us via support@wiredtunes.pl, after which we will contact you and inform you about the next steps of the procedure.

If the product cannot be repaired, it will be replaced with a new one, or in the absence of an available model, we will replace it with an analogous one in the same price range or refund the entire amount that has been paid. The most important thing is that the product is used properly.

Warranty

We care about our customers and carefully select the producers and products that we present in Wired Tunes, which is why we are sure of their quality. If the product does not meet our standards, you will not find our catalog on the list.

Our warranty is 36 months for all products and 60 months for ADAM Audio products.

Except for consumables, strings, tubes and crossfaders, and products showing signs of misuse.

In the event of damage, please contact us via support@wiredtunes.pl, after which we will contact you and inform you about the next steps of the procedure.

If the product cannot be repaired, it will be replaced with a new one, or in the absence of an available model, we will replace it with an analogous one in the same price range or refund the entire amount that has been paid. The most important thing is that the product is used properly.

Fast Delivery

All orders placed on our online store are delivered using the following delivery methods:

  • DPD Courier
  • UPS Courier
  • GLS Courier
  • DB Schenker

For orders valued up to 250 EUR, the delivery cost:

  • 15 euros: Germany, Belgium, Czechia, Hungary, Latvia, Luxembourg, Austria
  • 20 euros: Italy, Denmark, Estonia, France, Lithuania, Netherlands, Romania, Slovakia
  • 30 euros: Bulgaria, Croatia, Cyprus, Finland, Greece, Ireland, Malta, Portugal, Slovenia, Spain

For orders above 250 EUR, delivery is free.

The delivery time is typically 7 days.

For oversized orders, we use carriers such as DPD, GLS, and DB Schenker. The store manager will provide information on the cost and delivery time when your order is accepted.

Fast Delivery

All orders placed on our online store are delivered using the following delivery methods:

  • DPD Courier
  • UPS Courier
  • GLS Courier
  • DB Schenker

For orders valued up to 250 EUR, the delivery cost:

  • 15 euros: Germany, Belgium, Czechia, Hungary, Latvia, Luxembourg, Austria
  • 20 euros: Italy, Denmark, Estonia, France, Lithuania, Netherlands, Romania, Slovakia
  • 30 euros: Bulgaria, Croatia, Cyprus, Finland, Greece, Ireland, Malta, Portugal, Slovenia, Spain

For orders above 250 EUR, delivery is free.

The delivery time is typically 7 days.

For oversized orders, we use carriers such as DPD, GLS, and DB Schenker. The store manager will provide information on the cost and delivery time when your order is accepted.