Bass Guitar Pre Amps:: Summit TD100, Summit Products :: Basses, Amps, FX

Bass Guitar Pre Amps:: Summit TD100, Summit Products :: Basses, Amps, FX :: Bassdirect

SUMMIT TD 100 Tube DI Box and Instrument Pre amp - cost £410 inc UK VAT at 15%

Buy online for £359 inc shipping

An ideal companion to our Bergantino IP speakers. Click on images for larger pictures

The new TD-100 instrument preamp and tube direct box from Summit Audio features a hybrid signal path utilising both a discrete solid state output device and a 12AX7A/ECC83 vacuum tube to give your musical instruments the clarity of class A sound with the richness and warmth of vacuum tubes all in ½ rack space. Perfect for both live and studio use, the TD-100 offers both XLR microphone level and ¼" TRS line level outputs, plus variable input impedance, polarity switch and ground lift, signal and overdrive LEDs, and even a headphone output for use as a practice device. All with the quality that says Summit Audio.

How can this little box improve your sound so drastically? First is the variable input impedance control (loading). By lowering the impedance on the TD-100 your instrument's pickups get loaded down, changing their tone and the way they react to the string vibrations, generally making the tone darker and quieter. Raising the impedance lets your pickups work without hindrance, opening up the sound with a slight increase in gain. Use this to make your instrument sit properly in a mix without EQ or other tone shapers. This effect works best with passive pickups. The second way the TD-100 improves your sound is with the transformer-less vacuum tube based circuitry. This vacuum tube isn't made to distort and pervert, it adds a subtle texture and smoothness, a professional sheen to your instrument. Try the TD-100 in your signal chain, live or in the studio, with guitar, bass, keyboards, or any Hi-Z instrument and see what a little Summit Audio can do for you.

"A warm tone with complex harmonics and great clarity"

We can supply a specially modified TD 100 that has been matched to the Bergantino IP input which allows the maximum output and input efficiency.

Key Features:

• Variable input impedance from 10K ohms to 2M ohms

• XLR mic level output

• 1/4" TRS line level output

• Headphone output

• Up to +24dB output gain

• Signal ground lift

• Polarity switch

• Signal and overload LEDs

• Internal high voltage power supply

• One 12AX7A/ECC83 vacuum tube

•3 year warranty

Read reviews on the TD 100 HERE and HERE

We can also supply matching compressor/limiter and four band parametric eq

TLA-50 Tube Leveling Amplifier - MRRP £490

Add the warm sound of classic Summit Audio compression to your music with the TLA-50 Tube Leveling Amplifier, the newest offering from the first name in vacuum tube processing. This single channel tube leveling amp will warm your signals like nothing else. With XLR +4dB and ¼" -10dB inputs and outputs, the TLA-50 will interface into any studio with ease. The TLA-50 also features side chain access, stereo linking with another TLA-50, switchable attack and release times, fully adjustable gain and gain reduction control and accurate VU metering with OL indication. All the warmth of that classic Summit Audio tube sound at an unreal price.

Bass need an extra 'oomph'? Whether for live or studio work, the TLA-50 is THE compressor to make it fit the mix and stand out in the crowd. Anything but sterile, the TLA-50 imparts a flattering tone on anything passing through it. Get the sound the pros have been using for 20 years, the sweet and musical sound of the Summit Audio TLA.

Key Features:

•¼" TRS -10dB and XLR +4dB input and output

•Automatic level matching for interfacing -10dB and +4dB devices

•3 position attack and release settings

•Continuously variable gain and gain reduction controls

•VU metering of input level or gain reduction

•Overload indication

•Side chain access on ¼" TRS jack

•Stereo linkable with another TLA-50

•Internal high voltage power supply

•One 12AX7A/ECC83 vacuum tube
•3 year warranty

FeQ-50 Four-Band Parametric Equaliser - MRRP £699

New from Summit Audio comes the FeQ-50, a four band parametric, passive equaliser. Each of the four bands has six switch selectable frequencies and 14dB of fully sweepable cut or boost. The low and high bands can switch between peaking and shelving filters, the low mid and high mid can switch between narrow and wide bandwidths. Also included is a switchable high pass filter fixed at 30Hz with a gentle 6dB/octave roll off to reduce rumble. I/O includes a total of four simultaneous outputs, -10dB and +4dB vacuum tube out and -10dB and +4dB solid state out. Like all of our other ½ rack sized products, the FeQ-50 has an internal power supply and 3 year warranty.

The focus of the FeQ-50 from the very beginning has been the sound. Passive circuitry excels at rich harmonic content and phase coherency, resulting in a musically satisfying sonic experience. It was a challenge to fit fully passive circuitry into a box this size and at this price but we wanted to make the world of passive EQ available for anyone with an ear for quality. Although production costs can be high due to the high quality inductors needed to meet the strict tolerances necessary and the high value capacitors in the audio path, by creative and thoughtful engineering we were able to both fit the components in a ½ rack size and keep the price down. The result? A rich and accessible passive equaliser, simple yet versatile, and sure to complement your sound with a dash of flavour unlike any other.

FeQ-50 Basic Operating Instructions

What is a passive EQ?

A passive equaliser uses no amplifier in the filter circuit, it uses inductors and high value capacitors to filter the sound. The result is very musical overtones and excellent phase coherency.

How do I hook up my FeQ-50?

The FeQ-50 has both -10dB (on ¼") and +4dB (on XLR) inputs on a single combo connector. Four outputs are supplied, +4dB XLR Tube and Solid State as well as -10dB ¼" TRS Tube and Solid State.
For example: 2BA-221 XLR out -> FeQ-50 XLR input -> FeQ-50 XLR Tube output -> recording device input

How can I send the outputs of the FeQ-50 to multiple places?

All four outputs on the FeQ-50 are active at the same time so send them where you want! For example: 2BA-221 XLR output -> FeQ-50 XLR input -> FeQ-50 XLR tube output -> DAW input; FeQ-50 XLR solid state output -> TLA-50 input -> TLA-50 output to DAW input; FeQ-50 ¼" solid state output -> monitor input for no latency monitoring

I don't hear the HPF working when I switch it on; is it working?

The high pass filter on the FeQ-50 is a rumble filter only. It is set at 30Hz with a gentle 6dB per octave roll off. If you don't have a bunch of low frequency rumble making your sound muddled you probably won't hear it working.

How do you mount the FeQ-50?

Use the SRK-100 from Summit Audio to mount one or two FeQ-50's. They will also fit into a standard rack shelf although they tend to sag under the weight of these pieces.

How and when should you change your tubes?

We have seen 10,000 hours and more out of our vacuum tubes without signal degradation. We accomplish this by regulating the heater voltage to the tubes, greatly increasing their life, something of a rarity if this industry. So, time is not as much of an issue as is sound. If you hear a ringing sound in your audio or when you rap your knuckles on the front, the tube is going microphonic. If you hear an increase in the noise floor, the tube may need to be replaced. Contact us if you need new tubes, we can help.

Q. Is there simultaneous cut AND boost on any frequencies?

A. No. The effect of boosting and cutting the same frequency is something that the EQP-200B and other Pultec designs can do, but the FeQ-50 is a totally original design.

Key Features:

•Four frequency bands

•+/- 14dB cut and boost

•Six switch selectable frequencies per band

•Separate, by-passable high pass filter