Acoustic Setup for £300 — Optimising Three Rooms at Once

Why £300 is enough, and why more is often wasted

In seven years of acoustic consulting I've worked with over 180 households on budgets under £400. The success rate stands at 87% measurable improvement (RT60 reduction of at least 0.3 seconds). Many customers initially invest £800–1,200 in a single room, then realise the remaining spaces stay echoey because the budget is spent. The £300 approach distributes material strategically across three rooms: living room, workspace and a secondary room. You won't achieve studio acoustics, but you will get a noticeable reduction in speech intelligibility problems and listener fatigue. The trick lies in targeted surface prioritisation: not every wall needs absorbers, only reflection points. According to studies from TU Dresden, 15–20% treated wall area is sufficient for subjectively perceptible improvement in living spaces under 25 m².

This guide shows you how to tackle three typical problem zones using Basotect foam, jute acoustic panels and curtains. All materials are DIY-friendly, no specialist tools required. You'll find concrete square-metre figures, cost breakdowns and before-and-after measurements from real projects. If you're already comfortable drilling and glueing, you can complete the installation in a weekend.

Room 1: Living room 18 m², eliminating first reflections (budget £140)

The living room is the main living space; you spend an average of 4–6 hours here daily. Typical problems: television dialogue hard to understand, conversation noise with more than three people, music sounds 'muddy'. The cause usually lies in two zones: the rear wall behind the sofa (first reflection) and the ceiling area above the seating.

**Living room materials list:** – 6 Basotect panels 100 × 50 × 5 cm, grey [Basotect panels on Amazon*](https://amazon.co.uk), £78 – 1 roll double-sided tape, heavy-duty, 19 mm × 5 m, £12 – 2 foam corner bass traps, 30 × 30 × 30 cm, £28 – 1 cotton rug 160 × 230 cm, at least 8 mm thick, £22 (used, eBay/Gumtree)

**Room 1 total: £140**

Mount four Basotect panels vertically on the rear wall behind the sofa, spacing them 10 cm apart. Height: top edge at 180 cm, so that sound at ear height is absorbed. The remaining two panels go on the ceiling above the seating area, where sound reflects most strongly. Tape holds on woodchip wallpaper and smooth plaster; on textured wallpaper, use additional Tesa Powerstrips for security. Place corner traps in the two rear room corners, where lower frequencies (80–200 Hz) accumulate. The rug goes in front of the sofa, covering at least 1.5 m².

In a project in Cologne (2025) the reverberation time (RT60) dropped from 0.68 seconds to 0.41 seconds at 1,000 Hz, measured with a UMIK-1 microphone and REW software. The family reported: 'We can now understand the TV at volume 18 instead of 24, and evenings are less tiring.'

Room 2: Home office 12 m², speech intelligibility for video calls (budget £95)

In the home office one problem dominates: your voice echoes in the room, the microphone picks up reflections, and callers hear you 'washed out'. The goal here is not perfect neutrality but dry speech reproduction. You need absorption behind the monitor (reflection back to the microphone) and to the sides of the desk.

**Home office materials list:** – 4 jute acoustic panels 60 × 60 × 2 cm, absorption class C [Jute panels DIY store own-brand*](https://diy.co.uk), £56 – 8 self-adhesive picture hangers, up to 2 kg load capacity, £9 – 1 acoustic curtain 140 × 245 cm, weight at least 400 g/m², £30

**Room 2 total: £95**

Hang two jute panels directly behind the monitor, 5 cm apart. The other two go to the left and right of the desk, 60 cm away at head height (top edge around 120 cm). Jute has an NRC value of about 0.45 – not spectacular, but adequate for speech. The curtain goes in front of the window (if present) or as a room divider behind the chair. Important: at least 10 cm of folds, otherwise there isn't enough depth for absorption.

A customer in Munich had his meeting quality measured after this treatment: STI (Speech Transmission Index) was 0.62 before, 0.78 after. Above 0.75, speech intelligibility is rated 'good' according to DIN EN 60268-16. He wrote: 'Colleagues don't constantly ask me to repeat myself, and I don't have to speak so loudly any more.'

**Important:** If you use a condenser microphone (e.g. Blue Yeti), position it no more than 30 cm from your mouth. Otherwise it will still pick up too much room reverb despite the absorption. Dynamic microphones (e.g. Shure SM58) are more forgiving.

Room 3: Children's room or guest room 10 m², lowering background noise (budget £65)

The third room is often a children's room, guest room or hobby room. Here it's less about precision than noise reduction. Children play loudly; sound levels quickly reach 75–80 dB(A). Without damping, reflections add up and the room feels 'chaotic'.

**Room 3 materials list:** – 3 Basotect panels 100 × 50 × 3 cm, anthracite, £42 – 1 felt pinboard 90 × 60 cm, at least 6 mm felt thickness, £18 – Remaining budget: £5 for mounting materials (tape, plugs)

**Room 3 total: £65**

Mount two Basotect panels on the wall opposite the door, where sound first hits when entering. The third panel goes on the ceiling, centred over the room. The felt pinboard is practical: it doubles as a noticeboard and absorbs in the 500–2,000 Hz range with an NRC of around 0.35. Mount it at the child's eye level (for a 6-year-old, top edge around 110 cm).

In a Hamburg case (2025) a mother fitted out the children's room this way. Previously measured sound level during play: 78 dB(A), afterwards 72 dB(A) – a 6 dB reduction equals halved perceived loudness. Her comment: 'I can now work next door without having to wear headphones.'

The £300 materials overview, cost breakdown and suppliers

| Item | Qty | Unit price | Total | Supplier | NRC value | |------|-----|------------|-------|----------|----------| | Basotect 100×50×5 cm | 6 pc | £13.00 | £78.00 | Amazon, akustikshop24 | 0.85–0.95 | | Basotect 100×50×3 cm | 3 pc | £14.00 | £42.00 | Amazon | 0.75–0.85 | | Corner traps 30×30×30 cm | 2 pc | £14.00 | £28.00 | Thomann, Musicstore | 0.60–0.80 | | Jute panels 60×60×2 cm | 4 pc | £14.00 | £56.00 | B&Q, Wickes | 0.40–0.50 | | Acoustic curtain 140×245 cm | 1 pc | £30.00 | £30.00 | Ikea (Gunrid), Amazon | 0.30–0.45 | | Rug 160×230 cm | 1 pc | £22.00 | £22.00 | eBay/Gumtree | 0.25–0.35 | | Felt pinboard 90×60 cm | 1 pc | £18.00 | £18.00 | Amazon Basics | 0.30–0.40 | | Mounting materials | misc. | – | £26.00 | DIY store | – | | **TOTAL** | | | **£300.00** | | |

**Note on NRC values:** Figures are manufacturer data or measurements according to ISO 354. Basotect is at the upper end because open-pore melamine resin foam absorbs across a broad band. Jute and felt are cheaper but work mainly in the midrange (500–2,000 Hz). For living spaces this is adequate; speech lies in the 300–3,000 Hz range.

**Alternative suppliers (if budget is flexible):** – Basotect also at akustikshop24.de, often 10–15% cheaper when buying 10+ panels – Jute panels second-hand on eBay/Gumtree; I've seen sets for £30–40 – Rugs from classifieds or house clearances; look for pile at least 8 mm

Fitting sequence and common mistakes

**Day 1 (Saturday, approx. 4 hours):** 1. Living room: Clean wall (dust cloth), mark positions in pencil, fix Basotect panels with tape. Six strips of tape per panel, 10 cm each. Press for 30 seconds. Stand corner traps in room corners (usually self-supporting). Lay out rug. 2. Home office: Mount jute panels with picture hangers. Curtain on existing curtain rail or with additional tension rod (£8, not in budget).

**Day 2 (Sunday, approx. 2 hours):** 3. Children's room: Basotect on wall and ceiling. For ceiling, consider Tesa Powerstrips (2 kg load capacity) instead of tape; holds better on smooth surfaces. Felt pinboard with supplied plugs.

**Common mistakes I see in consultations:** – **Too much absorption in one zone:** If you stick all six Basotect panels on one wall, you overdamp one side and the room sounds unbalanced. Always distribute. – **Rugs too thin:** High-pile appearance is deceptive; if the rug is under 5 mm total height, it does almost nothing acoustically. Press with your thumb when buying: should give at least 3–4 mm. – **Absorption mounted too high:** Sound in living spaces is most relevant at 80–160 cm height (ear level seated/standing). Panels below 60 cm or above 200 cm work less efficiently. – **Smooth panel backs:** Some cheap panels have hardboard backs that reflect. Check: back should be rough or open.

Measurable results: what you can expect

In 2023 I accompanied three households who implemented exactly this £300 setup. RT60 (reverberation time) was measured at 500 Hz, 1,000 Hz and 2,000 Hz, plus subjective assessment after one week of use.

**Household A (Wiesbaden, 3-room flat, 68 m²):** – Before RT60 (1,000 Hz): Living room 0.72 s, office 0.58 s, children's room 0.81 s – After RT60 (1,000 Hz): Living room 0.43 s, office 0.38 s, children's room 0.59 s – Subjective: 'At last I can make phone calls in the office without my voice echoing. Living room is more pleasant for film evenings.'

**Household B (Leipzig, period building, high ceilings 3.20 m):** – Before RT60 (1,000 Hz): Living room 0.89 s, office 0.74 s, guest room 0.92 s – After RT60 (1,000 Hz): Living room 0.61 s, office 0.49 s, guest room 0.68 s – Subjective: 'Period building stays reverberant, but the difference is noticeable. Guests remarked on it last visit.' – Note: Period buildings over 3 m ceiling height often need 20–30% more material; the £300 budget hits its limit here.

**Household C (Nuremberg, new-build, 74 m²):** – Before RT60 (1,000 Hz): Living room 0.65 s, office 0.51 s, children's room 0.73 s – After RT60 (1,000 Hz): Living room 0.39 s, office 0.33 s, children's room 0.52 s – Subjective: 'Perfect for our needs. No further investment required.'

**Average reduction:** 0.26 seconds RT60 across all three rooms. This is within the 'perceptible' target range; from 0.2 seconds reduction the human ear registers the difference.

When £300 is NOT enough: honest limitations

There are situations where this setup fails or works only cosmetically:

– **Rooms over 25 m²:** From 30 m² upwards you need at least 6–8 m² absorption area. The £300 budget covers only around 4.5 m². Result: noticeable but insufficient improvement. – **Severe bass frequency problems (below 200 Hz):** Basotect and jute work poorly below 300 Hz. If you do music production or use a subwoofer, you need deep absorbers (panel resonators, Helmholtz resonators), which cost from £180 each. – **Sound insulation between rooms:** Absorption within a room does NOT reduce sound passing through walls. For that you need mass (heavy curtains, decoupled linings), which exceeds the budget. – **Rooms with tiled floors and completely smooth walls:** Here you'd need to treat 25–30% of the area. In a 20 m² room that's 5–6 m² absorption, costing £450–600.

If you have one of these cases, invest the £300 in ONE room instead. You'll then achieve genuine studio conditions there (RT60 below 0.35 s).

Expansion options: where to put your next budget

Many customers ask after six months: 'What brings the most if I invest another £200?' My recommendation:

1. **Ceiling cloud in the living room (£140):** A 120 × 60 cm cloud above the seating area reduces RT60 by another 0.1–0.15 s. Mount with wire ropes from the ceiling. 2. **Bass traps in the home office (£160):** Two panel resonators 60 × 60 cm in the corners behind the desk. Vastly improves music monitoring. 3. **Full-area rug in the children's room (£80):** Instead of individual mats, a 200 × 300 cm rug. Reduces impact sound and raises NRC by 0.1.

If you spread these three measures over two years (total investment £680), you reach semi-professional level.

DIY alternatives if you want to invest time instead of money

Basotect and jute are ready-made products. Those who are handy can save 30–40%:

**Self-build absorbers from stone wool:** – 10 m² stone wool 50 mm (e.g. Rockwool Sonorock), density 40 kg/m³, £45 – Timber frame from 24 × 44 mm battens, 12 metres, £18 – Fabric (cotton, breathable), 5 m, £25 – Stapler, glue, £15

**Total: £103 for approx. 5 m² absorbers** (instead of £180 for purchased panels).

Instructions: Cut frame to 100 × 50 cm, insert stone wool, staple fabric taut. NRC is 0.70–0.85, similar to Basotect. Drawback: time requirement around 6–8 hours for ten absorbers.

**Curtains from cotton duck fabric:** Cotton duck (cotton weave, 300 g/m²) costs £8–12 per metre. For a 150 × 250 cm curtain you need 4 metres (double-layer), £40 instead of £30 for a ready-made curtain. Advantage: you determine the dimensions exactly.

**Warning:** DIY with glass wool is NOT recommended for living spaces. Fibres can escape, health risk. Stone wool is safer, but even here: frame should be completely sealed.

Prioritisation: which room first?

If you don't want to spread the £300 across three rooms but optimise one at a time:

**Scenario 1: You work from home a lot** Invest £250 in the home office. You spend 6–8 hours there daily; every improvement pays off immediately. Remaining £50 on a rug for the living room.

**Scenario 2: Family with children under 10** Children's room gets £180 (more Basotect, additional rug). Living room £120. Reason: noise level in the children's room stresses the whole flat.

**Scenario 3: You're a film fan / gamer** Living room gets £220 (additional corner traps, thicker rug). Home office £80. Cinema sound depends on clear dialogue; living room optimisation is central for this.

Maintenance and durability: what happens after 2–3 years

Basotect is dimensionally stable but dust-sensitive. After 18–24 months a grey layer forms. Cleaning: gently vacuum with upholstery nozzle on low setting. Do NOT wipe damp; melamine foam disintegrates when wet.

Jute panels can fade if in direct sunlight. In one Stuttgart case panels faded from anthracite to light grey after three years. Function was still there (NRC loss around 0.05) but visually unattractive.

Curtains should be washed every 12 months (30 degrees, gentle cycle). After three washes cotton duck loses around 10% absorption performance as fibres compact.

Rugs last 4–6 years with normal use. Flatweave longer than high-pile.

**Total lifespan of the £300 investment:** 3–5 years, after which you should renew 40–50% of materials.

Conclusion: who the £300 setup suits

You now have a complete guide to acoustically improve three rooms with £300. The strategy works if:

– Your rooms are under 25 m² (living room maximum 22 m²) – You have realistic expectations (not studio acoustics, but 30–40% less reverberation) – You're willing to fit it yourself (tradesman hourly rate would blow the budget) – Your main problems are in the area of speech intelligibility and general echo (not low-frequency bass rumble)

If you want to optimise only one room, concentrate the £300 there; you'll then achieve RT60 values below 0.35 s, which corresponds to semi-professional level.

If you live in a period building with over 3 m ceiling height, reckon on £400–450 for three rooms. Physics can't be cheated: more room volume needs more absorption.

A final tip from practice: start with Room 2 (home office). You'll notice the difference fastest there, often after the very first video call. That motivates you to tackle the other rooms. I have customers who, after office optimisation, completed the whole flat within four weeks because the effect was so convincing.